Answer:
Time of flight, t = 1.71 seconds
Explanation:
It is given that,
Speed of the soccer ball, u = 15.6 m/s
Angle made with the horizontal, [tex]\theta=32.5^{\circ}[/tex]
Let t is the time for which the ball was in the air. The time duration for which the ball is in air is called the time of flight of the projectile. It is given by :
[tex]t=\dfrac{2u\ sin\theta}{g}[/tex]
[tex]t=\dfrac{2(15.6)\ sin(32.5)}{9.8}[/tex]
t = 1.71 seconds
So, the ball was in the air for 1.71 seconds. Hence, this is the required solution.
To find the amount of time the soccer ball was in the air, we can break the initial velocity of the ball into its horizontal and vertical components. The time in the air can be calculated using the vertical velocity component and the vertical distance traveled.
Explanation:To find the amount of time the soccer ball was in the air, we can break the initial velocity of the ball into its horizontal and vertical components. The horizontal component will remain constant throughout the motion, while the vertical component will change due to the force of gravity.
Using the initial velocity of 15.6 m/s and the angle of 32.5 degrees above the horizontal, we can find the vertical velocity component using trigonometry. The vertical velocity component is given by Vy = V * sin(θ), where Vy is the vertical velocity, V is the initial velocity, and θ is the angle above the horizontal.
With the vertical velocity component, we can calculate the time the ball was in the air by dividing the vertical distance it travels by the vertical velocity. Since the ball lands at the same level, the vertical distance can be assumed to be zero. Therefore, the time in the air is given by Δt = 2 * (Vy / g), where Δt is the time in the air, Vy is the vertical velocity component, and g is the acceleration due to gravity (approximately 9.8 m/s²).
A (n) ______ is a material that transfers heat well
12080 gallons per month into liters per hour
a) Jaką długość powinien mieć mieć bok kwadratu , aby pole tego kwadratu było równe polu prostokątu o wymiarach 3cm x 4cm ? Wynik podaj z dokładnością do 1mm.
b) Jaką długość ma krawędź sześcianu , którego ma objętość jest równa objętości prostopadłościanu o wymiarach 2cm x 4cm x 5 cm ?Wynik podaj z dokładnością do 1mm.
A miner of mass 90kg travels down a slide calculate the potential energy of the miner when he moves15m vertically downwards
The potential energy of the miner when he moves 15 meters vertically downward is 13,230 Joules.
How to solve for the potential energyTo calculate the potential energy of the miner as he moves 15 meters vertically downward, you can use the formula for gravitational potential energy:
Formula is given as m x g x h
Now, calculate the potential energy:
[tex]\[PE = 90 \, \text{kg} \cdot 9.8 \, \text{m/s²} \cdot 15 \, \text{m} = 13,230 \, \text{Joules}\][/tex]
The potential energy of the miner when he moves 15 meters vertically downward is 13,230 Joules.
Read more on potential energy here https://brainly.com/question/14427111
#SPJ3
List 2 examples of poor scientific mythology found in the student lab report
To determine the density of an object, which set of instruments would be helpful?
triple beam balance and meterstick
The set of instruments that would be helpful to determine the density of an object are triple beams balance and meterstick
Triple beam balance refers to an instrument that can be used to measure the mass of different objects. It is called triple beam balance because it is made up of three beams.
Further ExplanationEach of the beams has different weights and their size matches the gradations of the notched scale present on each of the beam. The size of the beams varies, the middle beam has the largest size, the far beam has a medium size and the font beam is the smallest size.
The basic parts of a triple beam include:
Weight pan: the object to be weight is placed on the weight panBase: the base is beneath the weight pan and can be set up to properly fit on the workbenchBeam: the beams can be used to get the level of precisionRiders: they are on top of the beams and indicates the mass (g) of an objectPointers: the pointer marks the mass of the object on the scaleZero adjustment knob: the knob are used to set the beam balance to zero marks before useAlso, meterstick can be helpful to determine the density of an object
LEARN MORE:
To determine the density of an object, which set of instruments would be helpful? https://brainly.com/question/6286782To determine the density of an object, which set of instruments would be helpful? https://brainly.com/question/14239000KEYWORDS:
densityobjectmeterstickpointersknobtriple beams balanceIf the mass of a material is 43 grams and the volume of the material is 14 cm^3, what would the density of the material be
a driver of a car traveling at 15.0m/s applies the brakes, causing a uniform acceleration of -2.0m/s^2. how long does it take the car to accelerate to a final speed of 10.0m/s? how far has the car moved during the breaking period?
Explanation:
Initial speed of the driver, u = 15 m/s
Acceleration of the driver, [tex]a=-2\ m/s^2[/tex]
Final speed of the driver, v = 10 m/s
Let t is the time taken by the driver to accelerate to the final speed. Using first equation of kinematics as :
[tex]t=\dfrac{v-u}{a}[/tex]
[tex]t=\dfrac{10-15}{-2}[/tex]
t = 2.5 seconds
Let d is the distance the car moved during the breaking period. Using the third equation of kinematics as :
[tex]v^2-u^2=2ad[/tex]
[tex]d=\dfrac{v^2-u^2}{2a}[/tex]
[tex]d=\dfrac{(10)^2-(15)^2}{2\times (-2)}[/tex]
d = 31.25 meters
Hence, this is the required solution.
What are the two factors that affect the frictional force between two surfaces?
Answer:
The amount of force and the angle between them.
Explanation:
Charcteristics Similarities Differences
Mercury
Venus
Earth
Mars
List and briefly describe the characteristics (interior and surface) of each terrestrial planet in the Characteristics column.
in the early 1900s Alfred Wegener noticed that some of earths continets looked like they might fit together like a jigsaw puzzle he also observed that the continets that looked like they fit together had similar plants animals and rock formations from this evidence Wegener reasoned that earths continents were all once a part of one big supercontinent what type of scientific thinking did wegener employ to develop this theory theory
A. inductive reasoning
B. deductive reasoning
C. skeptical reasoning
D. subjective reasoning
Its A. inductive Reasoning. He had no idea that it was true, but he assumed
what is a good hypothes is for this problem statement:Problem statement: Does changing the amount of water affect the time it takes water to boil?
Which of the following is true?
A.
The Earth exerts a gravitational force on the Moon, but the Moon does not exert a gravitational force on the Earth.
B.
The Moon exerts a gravitational force on the Earth, but the Earth does not exert a gravitational force on the Moon.
C.
The Earth and Moon do not exert gravitational forces.
D.
The Earth and Moon both exert a gravitational force on each other.
Answer:D.
The Earth and Moon both exert a gravitational force on each other.
Explanation: 100% right
Pressure increases with depth towards the center of earth. In which layer would you expect pressure to be the greatest.
What contribution is a modification to Thomson plum pudding model
[BWS.02] Jim plans to plant coffee beans on the farm. Coffee needs warm, moist, and sunny climate. It always snows for four months, starting from November, in the location where Jim lives. The temperature is generally moderate from June to October. Based on scientific knowledge, which of these would be the best month to plant coffee?
Final answer:
The optimal month for Jim to plant coffee beans is June, before the snow season and during the warm, moist climate period. Climatic factors and temperature changes due to climate change should also be considered in planning for coffee production.
Explanation:
The best month for Jim to plant coffee beans on his farm, considering the climate requirements for coffee growth (warm, moist, and sunny conditions) and the pattern of snow from November, would be June. This period, just after the moderate temperatures from June to October, would offer the newly planted coffee trees the optimal window for warm temperatures before the cold, snowy conditions set in. It's important for Jim to avoid the snow season and capitalize on the warm and moist period for the plantation.
Moreover, climate change has been an increasing concern for coffee production globally. In regions like Colombia, rising temperatures and changes in precipitation have adversely affected coffee output, requiring the development of new agricultural methods. Jim should be aware of and prepared to respond to these challenges by considering shade-grown coffee and soil health management to potentially mitigate climate change impacts.
I need help with this physics question
Which law represents a balanced chemical equation? Avogadro’s hypothesis, ideal gas law, law of conservation of mass, Newton’s first law of motion, Newton’s second law of motion
Answer:
Law of conservation of mass.
Every chemical equation adheres to the law of conservation of massIt state that "Matter cannot be created nor destroyed. Therefore there must be the same number of atoms of each element on each side of chemical equation.Scientists develop knowledge by making about the natural world that may lead to a scientific question
Answer:
Scientists develop knowledge by making observations about the natural world that may lead to a scientific question
Explanation:
Science has been able to change history and develop some elemental theories that explain how everything works by following some steps. These steps are known as the "scientific method", which can be described as a systmatic way of learning about the world and answering questions. The most basic step that allow scientists to develop questions about something is the observation, by observing things doubts will emerge. This will lead to the next step that is asking questions. In this way your research problem will be more accurate and therefore easier to study. The following steps are: form an hypotesis, make a prediction based on the hypotesis and test the prediction.
WILL MARK BRAINLIEST AND THANK
Two locations have different water vapor content in their atmosphere. Which of these is likely to be recorded?
Difference in rates of runoff
Difference in air pressure
Same humidity levels
Same temperature
Difference in air pressure
Explanation:Humid air has lower air pressure because humid air contains lots of water. As more and more water enters the atmosphere it displaces other, heavier molecules. As a result air that is humid is much lighter. Since humid air is lighter, it has less weight to press down with so it has lower pressure.
Cookware companies have been using a chemical called C-8, which helps to create a nonstick coating to pans. However, the Environmental Protection Agency (EPA) recently claimed that the use of C-8 in the manufacturing of nonstick cookware should be discontinued because studies show it causes cancer.
The one who might benefit financially, the most from the EPA's claim are cookware manufactures who make pans out of steel only.
What is chemical?A compound or element which reacts with the other element to form a product.
Chemicals are generally toxic because they harm our skin, when they come in contact with the body. When exposed to a toxic substance, gasoline can affect your health. Since, drinking gasoline can cause burns, vomiting, diarrhea and can cause death.
Cookware companies which have been using a chemical called C-8, that helps to create a nonstick coating to pans. Since, the Environmental Protection Agency (EPA) recently claimed that the use of C-8 in the manufacturing of nonstick cookware should be stopped. The reason for this discontinuation is that studies show it causes cancer.
There are also the companies who made cookware out of steels only. They are most benefited by this claim.
Thus, Steel cookware manufactures are benefited by EPA claim.
Learn more about chemical.
https://brainly.com/question/13145357
#SPJ6
what is the magnitude of velocity called?
A galaxy, such as the Milky Way Galaxy, is very small compared to
A.
the Solar System.
B.
the planet Jupiter.
C.
the Sun.
D.
the Universe.
Answer:
D. The universe
Explanation:
just got it correct
We may observe a sphere with a diameter of around 28 billion light years because the cosmos is enormous and has been expanding for about 13.8 billion years at a rate that is only a small fraction of the speed of light. Thus, option D is correct.
What Milky Galaxy, is very small compared to the Universe?Even just exploring our galaxy would take countless millennia, let alone the entire universe. The Hyperion Supercluster galaxy supercluster is another old formation.
The largest and most numerous galaxy is the universe. A galaxy is a massive cluster of gas, dust, billions of stars, and their solar systems that are all bound together by gravity.
Therefore, No, every solar system and galaxy can be found in the cosmos. The Milky Way Galaxy contains hundreds of billions of stars, including our Sun, while the universe itself is made up of billions of galaxies.
Learn more about galaxy here:
https://brainly.com/question/24836631
#SPJ3
3) A defense football player on one team tackles the other team’s quarterback, who is running down the field. The quarterback is pushed to the ground by the defensive player. 4) apply Newton’s first law to explain what happened?
The force generated by the defensive player has more magnitude and as such would push the quarterback to the ground.
A force can be defined as a push or pull of an object (body), which typically results in a change of motion due to the interaction of the object (body) with another.
Newton's First Law of Motion is also referred to as Law of Inertia and it states that an object (body) in motion would continue in its state of motion at a continuous velocity (in the same speed and direction) or if at rest, it will remain at rest unless it is acted upon by an external force.
In this context, an unbalanced force is generated by the quarterback and the defensive player, but the defensive player's force is an external force with more magnitude and as such would push the quarterback to the ground.
According to Newton's First Law of Motion, the quarterback was pushed to the ground due to an external force, generated by the defensive player.
Read more: https://brainly.com/question/24307064
A property that describes how easily a substance undergoes chemical changes
Chemical reactivity is the property that describes how easily a substance undergoes chemical changes. It relates to the instability of a substance, with more reactive substances typically being less stable. Factors influencing chemical reactivity include electron configuration, the presence of unpaired electrons, and the substance's position in the Periodic table.
Explanation:The property that describes how easily a substance undergoes chemical changes is known as chemical reactivity. This reactivity indirectly relates to how unstable the substance is, with less stable substances generally being more reactive. For instance, noble gases like helium or neon are very stable and exhibit low reactivity, while alkali metals like sodium are relatively unstable and show high reactivity.
Chemical reactivity can be influenced by several factors, including the particular substance's electron configuration, the presence of unpaired electrons, and the substance's position in the periodic table. Therefore, understanding a material's chemical reactivity can greatly help predict its behavior in various situations, particularly in reactions.
Learn more about Chemical Reactivity here:https://brainly.com/question/33558837
#SPJ2
Which of the following is a method of purifying water?
A. Fixation
B. Adding iodine
C. Freezing
D. Aeration
I’m between c & d
Sam and Ben stand on either side of box. They use equal force to push on the box. They observe the box does not move. How did they get this result? A) Balanced forces do not affect an object's motion. B) Unbalanced forces do not affect an object's motion. C) Balanced forces do affect an object's motion by changing its position. D) Unbalances forces do affect an object's motion by changing its position.
Two examples of renewable energy resources
CO2,NaCl,HCl these maybe classified as a) elements and compounds b) elements and molecules C) elements and pure substances D) compounds and pure substances
Please i really need to get this done today..
Describe the role of producers in a food web. Are producers the basis of all food webs? Justify your answer.