calculate the average velocity of a dancer who moves 5 Meters to the left of the stage over the course of 15 seconds
Answer 1-8 please
Thanks
a plane travels 2.5 km at an angle of 35 degrees to the ground and then changes Direction and travels 5.2 km and an angle of 22 degrees to the ground what is the magnitude and direction of the Plains total displacement
We can solve for the resultant x and y components by using the sine and cosine functions.
resultant x = 2.5 cos 35 + 5.2 cos 22 = 6.87 km
resultant y = 2.5 sin 35 + 5.2 sin 22 = 3.38 km
The resultant displacement is calculated using hypotenuse equation:
displacement = sqrt (6.87^2 + 3.38^2)
displacement = 7.66 km
The resultant angle is:
θ = tan^-1 (3.38 / 6.87)
θ = 26.20°
Therefore the magnitude and direction is:
7.66 km, 26.20° to the ground
Joshua is about to start a conversation with someone he has a crush on. He's not sure how it will go. Which of the following might Joshua experience? Anger Worry Happiness Sadness
Answer:
worry
Explanation:
Joshua is a young boy who has a crush on a girl. Now as Joshua is about to speak with the girl, he is bit nervous and anxious. So he is worried as he is not quite sure about how the conversation will go with her. This makes him feel worried. He is expecting to be nice with her as she is his crush and wishes everything to go well. But this makes his heart beat to pulse faster so he is worried about the conversation with her.
Help me please
True or false
1) an atom has no mass
2) an electron is the largest part of an atom
3) all atoms have the same mass
4) all protons have the same mass
5) all oxygen atoms have the same mass
6) an oxygen atom has the same atomic number as a hydrogen atom
7) to find the atom mass of an atom, we add the protons an electrons
8) the atomic number of an atom is the number of neutrons it has
9) atoms of the same kind that have different numbers of neutrons are called isotopes
10) atomic number = atomic mass
what measurement changes based on the strength of gravitational force?
Which of these uses the principle of superposition of rocks to compare the age of fossils?
A. Carbon half-life
B. Radioactive dating
C. Relative dating
D. Uranium half-life
Measuring the average energy of motion of the particles in a substance is the same as measuring the substance's
the answer is temperature
list two food chains in the food web.
Scientist make inferences about the structure and properties of the inner earth by __________
A) studying volcanoes
B) boring into the earth to explore for oil
C) analyzing seismic waves
D) monitoring ocean tides
Which of the following is not an intensive physical property?
Electrical conductivity
Mass
Density
Freezing point
Answer:
Below
Explanation:
Electrical conductivity (I believe)
Describe what would happen if, while wearing rollerskates, you pushed as hard as you could against a wall. Why does this happen?
how can the rate of the reaction be increased?
Answer:
The rate of a reaction is the number of moles of reactants converted or products formed per unit time.
Reaction rates can be increased by:
I. Increasing the concentration of solid and liquid reactants.
II. Increasing the pressure of gaseous reactants.
III. Increasing the surface area (area of contact) of the reactants.
IV. Increasing the temperature of the reaction mixture.
V. Increasing the intensity of light for light-sensitive reactions.
VI. Adding a suitable reaction catalyst. This will help lower the activation energy of the reaction, making it to occur faster.
Is it possible for you to take a hike and have the distance you cover be equal to the magnitude of your displacement?
Distance can be equal to displacement ... if the motion is all in a straight line ... but distance can never be greater than displacement.
Yes, it is possible that the distance can be equal to the displacement. a further explanation is given below.
A intervals metric that is taken somewhere across a track could be determined as the Distance, and the measurement of just a specific duration or short timeframe could be considered as a Displacement.Whenever you walk down the road throughout the one manner, the distance, as well as the size of the whole movement, become equivalent or comparable.
Thus the above answer is right.
Learn more about distance and displacement here:
https://brainly.com/question/13210415
how did Bourne believe that an object could be made to rise or sink at will?
Explanation:
When an object is placed inside water, an upward force is exerted by water called as buoyant force.
An object will float or sink, this completely depends on the density of object. Also, if the magnitude of gravitational force is more as compared to the buoyant force the object will sink otherwise float.
If the density of substance is more than water, it will sink and if the density of substance is less than water it will float.
besides mass , another factor that affects force
How does a centripetal force cause circular motion
Answer:
It cause the change in the direction of the motion at every instant of time
Explanation:
When an object is revolving around a fixed point with uniform speed then in that case the acceleration of the object tangential to the path must be zero.
which mean the component of acceleration along the speed of the object at all instant of time will zero or not present because it's speed must remains the same
now since the direction of motion is continuously changing here so we can say that the force must acting here in such a way that will cause the change in the direction of the object
So this force must be perpendicular to the velocity at all instant so that the magnitude of velocity will remain the same while the direction of the velocity will continuously changing
So centripetal force will always act along the center of the path of the object
A meter stick flies by with an apparent length of 60 cm. What is it's velocity in m/s? Not sure which formula to use
Solution:
Starting with g equal to (1/0.6), solve for v.
v = 0.8c = 2.4E8 m/s
How did Andersonville play a role in the civil war?
An object is dropped from a 32 m tall building. How fast will it be going when it strikes the ground?
The object will be moving at approximately 25.04 m/s when it strikes the ground.
How to determine the speed at which an object will be moving
To determine the speed at which an object will be moving when it strikes the ground after being dropped from a height, use the equations of motion under constant acceleration.
The acceleration is due to gravity and can be approximated as 9.8 m/s².
The equation that relates the final velocity (v) of the object, the initial velocity (u), the acceleration (a), and the displacement (s) is:
v² = u² + 2as
Given:
Initial velocity (u) is 0 m/s (as the object is dropped).
Acceleration (a) is -9.8 m/s² (negative because it acts in the opposite direction to the object's motion).
Displacement (s) is the height of the building, which is 32 m.
Plug in the values into the equation, we have:
v² = 0² + 2 * (-9.8 m/s²) * 32 m
v² = -2 * 9.8 m/s² * 32 m
v² = -627.2 m²/s²
Take the square root of both sides to solve for v:
v = √(-627.2 m²/s²)
Since we are interested in the magnitude of the velocity, the negative sign is ignored.
v ≈ 25.04 m/s
Therefore, the object will be moving at approximately 25.04 m/s when it strikes the ground.
Describe Bohr's contribution to the atomic model.
Which is the largest and the main artery of the circulatory system
Pulmonary The main artery of the human circulatory system is called the aorta. It comes directly off of the heart, carrying oxygenated blood to other arteries that carry it to… the body's cells. About the thickness of your thumb, it is also the largest artery.
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How much have jellyfish populated since 2015?
A testable idea or explanation that leads to a scientific investigation is called a what
suppose a ball has a potential energy of 5 J when you dropped it. What would be its kinetic energy just as it hit the ground?
Answer:
10 J
Explanation:
PLEASE HELP ASAP!!!!!
What type of climate is most likely expected in locations between the poles and the equator that have high amounts of water vapor in the air?
Dry
Low humidity
No rain
Seasonal storms
Seasonal rainstorms because there is a lot of water vapor in the air causing it to always be moist.
Answer:
answer D
Explanation:
why you ask because its asking you the water vapor
and asking you the amount of water im confused a bit i hope it helps
which have more kinetic energy a 100g ball,a 200g ball, or a 500g ball explain
Answer:
500g ball have more kinetic energy.
Explanation:
Due to mass is directly proportional to kinetic energy.
On a hot summer day several swimmers decide to jump into a river. They step off the bridge and strike the water at 1.5s later. Ignore air resistance. What is the height of the bridge?
I did it but I don’t know if it’s right
When on a hot summer day several swimmers decide to jump into a river. They step off the bridge and strike the water 1.5 seconds later. Ignore air resistance, then the height of the bridge would be 11.03 meters.
What are the three equations of motion?There are three equations of motion given by Newton,
v = u + at
S = ut + 1/2×a×t²
v² - u² = 2×a×s
As given in the problem, when on a hot summer day several swimmers decide to jump into a river. They step off the bridge and strike the water 1.5 seconds later. Ignore air resistance,
By using the Second equation of motion,
S = ut + 1/2×a×t²
S = 0 + 0.5*9.81*1.5²
S = 11.03 meters
Thus, the height of the bridge would be 11.03 meters.
To learn more about equations of motion here, refer to the link;
brainly.com/question/5955789
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Both artists and scientists contribute to our understanding of the world around us. Identify the ways that art and science are similar. Check all that apply.
Answer:
the answer to this would have to be 1,2 and 4
Explanation:
i just did it
how do I figure out the GPE of an object on the ground? question 28.