The history of Sir Isaac Newton’s study of gravity does which of the following?

A. Illustrates how a theory becomes a law
B. Provides an example of a theory that has been discredited
C. Demonstrates the importance of gravity in marine science
D. Shows that theories have long been an important part of science

Answers

Answer 1

A. Illustrates how a theory becomes a law

Answer 2

Answer:

A. Illustrates how a theory becomes a law

Explanation:

Newtons studied about the gravity for a very long time and proposed theory about it.

Later on, based on his theories comes the gravitational law. His theory were based on various assumptions and examples that he related to explain the structure of universe.

His work shows how theories can become laws which are universally obeyed.


Related Questions

What happens when two forces act in the same direction?

Answers

When two forces act in the same direction they add together. Equal forces acting in opposite directions are called balanced forces. Balanced acing on a object wont change the objects motion. When you add equal forces in opposite directions the net force is going to be zero.

Why is the specific heat capacity of the human body close to, but somewhat less than, that of water?

Answers

Answer:

Because most of the human body (about 70% of it) consists of water

Explanation:

The main reason why the specific heat capacity of the human body is very close to that of water is that water makes approximately 70% of the substances of which the human body consists. However, the human body has a slightly smaller specific heat capacity than water, because it contains also other elements/substances, and since water is one of the substances with the higher specific heat capacity at all, the specific heat capacity of the body is a bit smaller.

Final answer:

Water has a specific heat capacity close to, but somewhat less than, that of the human body. The high specific heat capacity of water is due to the hydrogen bonding between water molecules.

Explanation:

Water has a specific heat capacity that is close to, but somewhat less than, that of the human body. The specific heat capacity of a substance is the amount of heat required to raise the temperature of one gram of that substance by one degree Celsius. Water's specific heat capacity is about 4,184 J/kg/°C, while the specific heat capacity of the human body is approximately 3,500 J/kg/°C.

The high specific heat capacity of water is due to the hydrogen bonding between water molecules. These hydrogen bonds require a significant amount of energy to break, resulting in water's ability to absorb and retain heat. This property is beneficial for warm-blooded animals, like humans, as it helps regulate body temperature and prevents rapid temperature changes.


1. Set frequency of wave generator to 5Hz.
2. Set amplitude of wave generator to 1cm.
3. Place the barriers 10cm from the wave generator.
4.
5. Sketch the diffraction pattern observed.

What should be step 4?

Answers

Separate the barriers so they have a 2cm gap between them.

Answer:

Separate the barriers so they have a 2cm gap between them.

Explanation:

Changing the spacing between the barriers will alter the diffraction pattern.

What is the product of an object’s mass and velocity? momentum net force kinetic energy

Answers

Answer:

The correct answer option is momentum.

Explanation:

Momentum is the product of an object's mass and velocity.

It is a term which describes the relationship between the mass of an object and the velocity of an object.

Momentum can be represented in the form of an equation as:

P = mv

where P is the momentum,

m is the mass of the object; and v is the velocity of that object.

Final answer:

The product of an object's mass and its velocity is defined as its momentum in physics. Momentum is a measure of motion especially relevant in discussions about collisions.

Explanation:

In Physics, the product of an object's mass and its velocity is called its momentum. Momentum is a vector quantity meaning it has both direction and magnitude. It's often used in discussions about collisions. If an Object A with a mass of 1kg is moving at a velocity of 5 m/s, for instance, its momentum would be 5 kg*m/s. So simply put, momentum can be calculated by multiplying the object's mass by its velocity.

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Gina is driving her car down the street. She has a teddy bear sitting on the back seat. A dog runs in front of Gina's car, so she quickly applies the brakes. The force of the brakes causes the car to stop, but the teddy bear continues to move forward until it hits the car's dashboard. The teddy bear did not stop at the same time as the car becauseGina is driving her car down the street. She has a teddy bear sitting on the back seat. A dog runs in front of Gina's car, so she quickly applies the brakes. The force of the brakes causes the car to stop, but the teddy bear continues to move forward until it hits the car's dashboard.

Answers

teddyber continue to move forward because Newton law 1. moving object continue to move until something external make it to stop. no seat belt on teddy ber so only dashboard can make her stop. same if people in car and no seatbelt.

Answer:

objects in motion tend to stay in motion unless acted upon by an outside force.

PLS HELP WILL GIVE 20 POINTS. I just need C.

Answers

I'm not sure but i think it's solution.
Solution which is a homogeneous mixture

A coin is thrown with a velocity of 0 m/s down a dry well and hits bottom in 1.2s, what’s the depth of the well?

Answers

Answer:

The well is 7.1 meters deep.

Explanation:

The formula to use here is the distance in a uniformly accelerated motion:

[tex]d = \frac{1}{2}at^2+v_0t+d_0[/tex]

where d stands for distance, t for time, a for acceleration, v0 and d0 for initial velocity and distance, respectively. Since the initial distance and velocity are both zero, we are left with the first term. The coin is in free fall and so it is accelerated by gravity:

[tex]d = \frac{1}{2}at^2= \frac{1}{2}gt^2=\frac{1}{2}9.8\frac{m}{s^2}1.2^2s^2=7.1m[/tex]

The well is 7.1 meters deep.

Describe the transformation of mechanical energy in a ball when it is thrown straight up and then comes back down

Answers

I believe that the mechanical energy would transform from starting out as kinetic, the reaching the top it would be potential, then go back to kinetic as it is falling back down.


I'm not 100% sure that this is right but if I had to take a guess this is what I would say.
Final answer:

The ball's mechanical energy transforms from kinetic to gravitational potential as it is thrown up and slows down, and from gravitational potential back to kinetic as it falls down, increasing in speed.

Explanation:

When a ball is thrown straight up, it undergoes a series of energy transformations involving mechanical energy. Initially, the ball has kinetic energy as it moves upwards. As it rises, this kinetic energy is gradually converted into gravitational potential energy due to the influence of Earth's gravity. The kinetic energy decreases because the ball slows down, and at the peak of its trajectory, its velocity is zero, so all of the kinetic energy has been converted into gravitational potential energy.

As the ball starts to fall back down, the gravitational potential energy begins to convert back into kinetic energy. The ball accelerates due to gravity, increasing its speed as it descends. By the time the ball reaches the hand of the thrower or the ground, nearly all of the gravitational potential energy has been transformed back into kinetic energy (assuming no energy is lost due to air resistance or other non-conservative forces). The ball's speed upon impact will be roughly the same as the speed it had when it was initially released, again depending on air resistance and other factors.

Conservation of energy

Answers

Answer:

It is the fundamental concept of physics.It states that total amount of energy in a system remains constant in isolated system. This means energy can neither be created nor it can be destroyed but can change from  one form to another.Energy can change from kinetic to potential energy, and back without reducing the total energy.

A helicopter has a mass of 1500kg. The rotation of the rotor blades cam produce a maximum upwards force of 20000N
(a)Find the amount of upward force required to keep the helicopter at a constant height.
(b)What is the maximum upwards acceleration of the helicopter?

Answers

Let's see if I remember this...

a) You are determining the amount of normal (upward) force that must be applied in order to counter the gravitational force of the helicopter. You may use the Fnet equation in order to solve this (note how Fnet = 0 as the helicopter is not accelerating if it is staying still in the air).

    Fnet = Fg + F(up)

         0 = Fg + F(up)

         0 = mg + F(up)

         0 = 1500 kg(9.8 N/kg [down]) + F(up)

  -F(up) = 1500 kg(9.8 N/kg [down])

  -F(up) = 14700 [down]

   F(up) = 14700 N [up]

Therefore, the amount of upward force required to keep the helicopter at a constant height is 15000 N [up]. (Using significant digit rules).

b) You are determining the acceleration of the net force to figure out the maximum upward acceleration of the helicopter. You may use the Fnet equation in order to solve this.

        Fnet = Fg + F(up)

          ma = mg + F(up)

1500kg(a) = 1500kg(9.8 N/kg [down]) + 20000N [up]

1500kg(a) = 14700 N [down] + 20000N [up]

1500kg(a) = 14700 N [down] - 20000N [down]

1500kg(a) = -5300 N [down]

1500kg(a) = 5300 N [up]

              a = 0.28301 m/s² [up]

Therefore, the maximum upwards acceleration of the helicopter would be 0.3 m/s² [up]. I am not too sure if I have done significant digit rules correctly for this question, but I hope I helped!

how does a planet's gravity change the path of a space probe

Answers

it can make the probe orbit around the planet or get the probe sucked into the atmosphere

A spacecraft's velocity is altered by a gravity assist around a planet as a result of entering and departing the gravitational sphere of influence of the planet.

What is Gravity assist ?

              A spacecraft's velocity is altered by a gravity assist around a planet as a result of entering and departing the gravitational sphere of influence of the planet. The speed of the spaceship rises as it gets closer to the planet and falls as it departs the planet. Although the speed acquired when arriving and lost when departing are almost identical, the spacecraft is nevertheless impacted by the planet's rotation around the sun. The spacecraft approaches the planet from the direction of the orbital velocity of the planet and departs in the opposite direction to increase speed. In both types of manoeuvres, the energy transfer compared to the planet's total orbital energy is insignificant. The spacecraft approaches the planet from a direction away from the planet's orbital velocity to slow down. The two bodies' combined kinetic energy are stable. Therefore, a slingshot manoeuvre can be employed to alter the spacecraft's trajectory and speed with respect to the Sun.

            The spacecraft's speed can undoubtedly be changed with the use of rocket engines. However, the propellant needed for rocket thrust has a mass, thus even a slight change in velocity results in a much higher need for fuel to escape Earth's gravitational well. This is due to the fact that the primary-stage engines must lift additional propellant above and beyond what is required to hoist that additional propellant. As the needed spacecraft delta-v rises, the liftoff mass requirement grows exponentially.

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Which of the following represents the region where molten magma rises to just underneath the surface of earth create Volcanic Activity
A. Accretion
B. Fault
C. Hotspot
D. Mid-Ocean ridge

Answers

Answer: The correct answer is an option (C).

Explanation:

Hotspot : These are the volcanic regions which are fed by the mantle layer of an earth.  Due to high temperature and low pressure in mantle of an earth leads to the melting of the rocks and this molten form of rock is known as magma. This magma rises through cracks and erupts out from volcanoes.

Accretion : A process of addition of a material to a tectonic plate or a landmass.

Fault : It is a crack in an earth crust.They linked with or form , the boundaries present between the earth's tectonic plates.

Mid-Ocean ridge: An elevated region on an ocean floor or we can say underwater mountain range formed on the ocean floor by the movement of tectonic plates.


Answer:

C

Explanation:

I am smart

what is not force
A. friction
B. gravity
C. momentum
D.weight

Answers

C. Momentum is not a force, its considered a mass, Good Luck!

C. Momentum

Every other opinion is a type of force

In some areas, farmers have installed windmills to generate electricity to run the farm. Some are generating a surplus of electricity and selling it back to the power company. The local power company burns fossil fuels, which pollute the environment, to generate electricity. Windmills do not pollute the environment. Evaluate the statements and choose the statement that best describes how the windmill technology benefits the environment. (2 points)

Windmill technology is a valuable resource that should be used whenever possible. The great advantage is that it uses a nonrenewable resource, the wind, to generate electricity. This is an advantage because nonrenewable resources will always be available.

Windmill technology allows individuals to generate power without polluting the environment. Some individuals could make money selling the power to the power company. This extra money will make the farmers' lives better.

Windmill technology can generate power using a renewable source of energy that does not pollute the environment. By generating a surplus of energy, individuals can sell it to the power company which can replace the energy generated by burning fossil fuels.

Windmill technology might use a renewable resource to generate power but putting the windmills up along the farms damages the environment. The advantage of using a renewable resource to generate power is less important than keeping farms free of windmills that might take up space.

Answers

Windmill technology can generate power using a renewable source of energy that does not pollute the environment. By generating a surplus of energy, individuals can sell it to the power company which can replace the energy generated by burning fossil fuels.

The third alternative.

Answer:

Option (3)

Explanation:

Windmills are usually considered to be a structure that is commonly used in the region where there is a high amount of wind supply and converts the wind energy into electrical energy.

Wind is a renewable resource as it can be regenerated, and it does not emit any kind of harmful gases that can pollute the environment.

As these windmills produce electricity, it is being used by the farmers in the given region, and the excess amount of energy is sold to the various power companies by the individuals. This electrical energy so produced directly replaces the fossil fuels, that emits a significant amount of carbon and affects the environment.

Thus, the correct answer is option (3).

An apple drops from a tree and hits the ground in 1.5s what is its speed just before it hits the ground?

Answers

Vf - Vo = gT  

where  

Vf = velocity of apple just before hitting the ground  

Vo = initial velocity of apple = 0  

T = time for apple to hit the ground = 1.5 sec (given)  

g = acceleration due to gravity = 9.8 m/sec^2 (constant)  

Substituting appropriate values,  

Vf - 0 = 9.8(1.5)  

Vf = 14.7 m/sec.  


Just before it hits the ground, the apple's speed is approximately 14.715 meters per second.

To find the speed of the apple just before it hits the ground, we can use the equations of motion.

When an object falls freely under the influence of gravity, its speed increases due to acceleration.

The equation to calculate speed is:

Speed (v) = Initial Speed (u) + (Acceleration (a) × Time (t))

Assuming the apple falls from rest (initial speed, u, is 0), and the acceleration due to gravity on Earth is approximately 9.81 [tex]m/s^{2}[/tex], and the time it takes to hit the ground is 1.5 seconds, we can calculate:

v = 0 + (9.81 [tex]m/s^{2}[/tex] × 1.5 s) = 14.715 m/s

So, just before it hits the ground, the apple's speed is approximately 14.715 meters per second.

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Black holes are:

A) Star remnants from super massive stars which gravitational collapse can not be halt by electron or neutron degeneracy and gravity is so strong in their vicinity that not even light can escape.

B) Regions of the universe with space empty of matter or radiation that becomes so dark that forbids us from investigating it.

C) Regions of space where matters is not sufficiently hot to radiate in the visible spectrum.

Answers

Answer to the question provided is A

Black holes are:

A) Star remnants from super massive stars which gravitational collapse can not be halt by electron or neutron degeneracy and gravity is so strong in their vicinity that not even light can escape.

What is Black hole ?

Black holes are volumes of space where gravity is extreme enough to prevent the escape of even the fastest moving particle .

Black hole is formed by the collapse of individual star which are relatively small but incredible dense which leads to a great amount of gravitational force pulling on objects .

It is a region of spacetime where gravity is so strong that nothing( no particle , light etc )  can escape from it

hence , correct option is A) Star remnants from super massive stars which gravitational collapse can not be halt by electron or neutron degeneracy and gravity is so strong in their vicinity that not even light can escape.

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while racing on a flat track a car rounds a curve of 56m radius and instantaneously experiences a centripetal acceleration of 36 m/s how fast was the car going.
25m/s
45m/s
35m/s
2.0 x 10^3 m/s

Answers

45m/s should be the answer because the acceleration changes into's velocity and goes towards the centre in which  is 56/ms that equals v^2/R  the speed at the instant.


Hope this helped


Regards, ShaggySnaps

Answer:

I am pretty sure its 45 m / s

Which of the following is a chemical reaction? A. breaking a glass pane B. freezing water C. digestion of food D. cutting down a tree E. evaporation of rubbing alcohol Reset

Answers

The answer to the question "Which of the following is a chemical reaction?" is C. digestion of food.

The question which asks, "Which of the following is a chemical reaction?" involves identifying which activities involve chemical changes where the identity of the substances involved changes. A chemical reaction involves breaking old chemical bonds and forming new ones, leading to the production of one or more new substances with different properties from the original substances.

Breaking a glass pane is a physical change.Freezing water is a physical change.Digestion of food is a chemical reaction because it involves enzymatic processes that break down food into simpler, absorbable compounds.Cutting down a tree is a physical change.Evaporation of rubbing alcohol is a physical change.

Therefore, the answer to the question is C. digestion of food, as it is the process that includes chemical reactions.

The is a measurement unit for intensity of sound. a) meter b) decibel c) degree

Answers

Answer: decibel

It is the unit of sound abbreviated as dB. It is also defined as Power per square meter, Therefore intensity of sound expressed in Watt per square meter (W/m2).

Decibel (dB)is the unit of expressing the ratio between two physical quantities, usually amounts of acoustics or electric power or measuring the relative loudness of sounds.

If your using GradPoint or NovaNet,

your answer would be (B) decibel.

I hope this helped!

Your town is considering building a nuclear power plant. Describe at least two advantages and two disadvantages of this project. Based on these factors would you recommend that they continue with the project or consider other options?

Answers

Advantages:
1). It would provide power for the town so they would be more independent.
2). It would provide local employment.
Disadvantages:
1). It is possible for a meltdown to occur so the power plant could blow up.. (and other accidents to be considered too)
2). Radiation leaks or harmful gases released into the atmosphere.
3). They are expensive to build and maintain.

Answer:

Advantages : 1. Large demands of power supply are met easily by the nuclear power plants.

2. Unfavorable weather conditions do not effect its operation.

Disadvantages:

1. Disposal of nuclear waste will pose a serious problem locally for the town.

2. Establishment costs for a nuclear power plant are high compared to to thermal or hydro power plants.  

Explanation:

Nuclear fuel used in a nuclear power plant is called the fission material . It is a radioactive element like isotopes of Uranium. The heat generated by the nuclear power plant can be removed efficiently if the reactor is built in a place that has water resources. Cooling towers can also be used  to cool it. Operation costs are less compared to other types of power plants. If  the nuclear waste can be handled without causing any hazards to human life, the town can definitely support the project.

which is a charcharacteristic of all ions?

Answers

An ion is created by the transfer of electrons. The metals give away the elections and become positively charged. The non - metals take on electrons.

Balance.

So an ion is any atom that either gives away or takes on electrons.

A 50 Kg box sits at rest on a 30 degree ramp where the coef of static friction is 0.5773 what is the weight of the box?

Answers


Given Data:

mass (m) = 50 Kg

W = m*g = 50×9.81 = 490.5 N

Coefficient of static friction (μs) = 0.5773

ramp angle = 30 degrees

determine Normal force=?

From the figure we know that

Normal force (N) = μs.W cosΘ

                           = 0.5773 ×490.5×cos 30

                           = 245.22 N

Therefore, The Normal force = 245.23 N



In the diagram of the conical pendulum below, which number (1, 2, 3, or 4) represents the angle θ used in the conical pendulum equation Error connecting to the latex translator service.

Answers

Step 1: Look in your book or online for the conical pendulum equation.

Step 2: Look at the drawing and see which angle is involved in the equation.

Answer: It's Angle #2 in your drawing.

Final answer:

The angle θ in a conical pendulum often represents the angle between the vertical line (pendulum string at rest) and the slanted line (pendulum string in motion). It is crucial in calculating aspects of the pendulum's motion using the conical pendulum equation.

Explanation:

In the context of a conical pendulum, the angle θ typically represents the angle between the vertical line (the length of the pendulum string when at rest) and the slanted line (the length of the pendulum when it is in motion). Without a specific diagram to reference, it's difficult to state with certainty which number (1, 2, 3, or 4) would represent θ. However, commonly in diagrams of conical pendulums, θ is represented by the angle between the vertical dashed line and the string of the pendulum when it is being pulled sideways, creating a conical shape. In trigonometry, this angle θ is important when calculating various aspects of the pendulum's motion using the conical pendulum equation. This angle is typically small, hence, allowing for the small angle approximation sin θ ≈ θ can be used in small-angle cases.

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Two liquids are poured into two cups. Cup A contains a colorless, odorless liquid. Cup B contains a colorless liquid with a strong odor. An ice cube floats in Cup A but sinks in Cup B. When heated, the liquid in Cup B boils at a much lower temperature than the liquid in Cup A. What kind of properties are used to compare the two liquids? A) visible B) chemical C) physical D) phase change

Answers

the correct answer is C. physical

Answer:

c physical

Explanation:

Physical properties are used to compare the two liquids. Both water and rubbing alcohol have the same clear color while their boiling points, odor, and densities are all different.

(25 Brainly Points.)

In what way does an earthquake provide evidence about the layers of Earth?

Answers

Because an earthquake happens when two of the atomic plates rub together .


Hopes this helps. PLZ MARK BRAINIEST

What change occurs to the mass of an object when an unbalanced force is applied to it?
A. The mass increases.
B. The mass decreases.
C. The mass remains the same.
D. The mass reduces to zero.
E. The mass changes by an indeterminate amount.

Answers

I would say C) is your answer

Answer:

The mass remains the same.

Explanation:

Unbalanced forces are the type of forces in which the system moves in a particular direction. There is some net force which acts on it.

When an unbalanced force applied to an object, the object will move in the direction where maximum force is applied. There is no effect of unbalanced force on the mass of an object. Also, the mass of an object remains same at each and every locations.

So, the correct option is (c) "The mass remains the same".

if the velocity of a body changes from 13 m/s to 30 m/s while undergoing constant acceleration what's the average velocity of the body?

Answers

The answer is 21.5 m/s.

Answer:

Average velocity of the body is 21.5 m/s

Explanation:

It is given that,

The velocity of a body changes from 13 m/s to 30 m/s while undergoing constant acceleration.

The initial velocity of the body, u = 13 m/s

The final velocity of the body, v = 30 m/s

It is moving under constant acceleration. The sum of initial velocity and final velocity divided by 2 is called the average velocity of the body. It is given by :

[tex]v_{avg}=\dfrac{u+v}{2}[/tex]

[tex]v_{avg}=\dfrac{13\ m/s+30\ m/s}{2}[/tex]

[tex]v_{avg}=21.5\ m/s[/tex]

Hence, the average velocity of the body is 21.5 m/s

Which of these has a lower frequency than visible light?

A.gamma rays

B.ultraviolet rays

C.infrared rays

D.X-rays


plz hurry

Answers

Answer      C, infrared rays

Gamma rays, ultraviolet rays and X-rays are more energetic (Shorter wave lengths and higher frequencies) than visible light.

Infrared  rays, microwaves and radio waves are less energetic (Longer wave lengths, lower frequencies) than visible light.




Hope this information  is very helpful to you


If a 100Ib women walks up a flight of stairs to get to the top of a 100 meter building. How much work did she perform?

Answers

Given that

force ( F) = 100 lb ,

displacement (S) = 100 m ,

Determine , Work = ?

                     Work = Force × displacement

                           W = 100 ×  100

                           W = 100000 lb-m

What regions contain the largest concentration of oil wells

Answers

Answer:

Middle East, North America,  Russia and the Former Soviet Union, South America, Africa

Explanation:

1. Middle East: The Middle East is one of the most significant regions for oil production, with countries like Saudi Arabia, Iraq, Iran, Kuwait, and the United Arab Emirates being major oil producers.

2. North America: Within North America, the United States and Canada have large concentrations of oil wells, particularly in states like Texas, Oklahoma, Alaska, and provinces like Alberta.

3. Russia and the Former Soviet Union: Russia is a major oil-producing country, and during the time of the Soviet Union, several other countries in the region also contributed significantly to oil production.

4. South America: Countries like Venezuela and Brazil have significant oil reserves and production.

5. Africa: Countries like Nigeria, Angola, and Algeria have substantial oil production.

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