PHYSICS HIGH SCHOOL

The forces acting on a falling leaf are

Answers

Answer 1
Answer:

Answer:

Gravitational and resistance force.

Explanation:

The push or pull on any object which causes an object to move is called force. The forces can be of many types. The forces acting on the falling leaf are :

  • Gravitational force : The force that acts in downward direction is called the force of gravity. This force pulls every object towards it.
  • Resistance force/ normal : The force that act opposite to gravitational force is called the resistance force. It opposes the direction of motion of the leaf.
Answer 2
Answer: the forces acting on a leaf are gravity and air resistance.In some cases the only force acting on an object is gravity, if that occurs then its called freefall. 

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A poet endowing animals, objects, or abstract ideas with human characteristics is using the figure of speech called _____.

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The most likely answer is personification. However, if said poet addresses such phenomena directly as to another human, or in a manner of dialogue, they use a type of personification known as anthropomorphism.

How can you increase the momentum of an object?

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Hope this helps, have a great day ahead!

A ball thrown vertically upward reaches a certain height and comes down again. What can you say about its kinetic energy at the maximum height?

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Answer: The kinetic energy of the ball at the maximum height is zero.

Explanation -

As per the question, the ball is moving vertically upwards. Every time it's velocity will decrease and it becomes zero at the maximum height.


Whole of ball's initial kinetic energy is converted into potential energy at maximum height.


Thus we can conclude that the kinetic energy is zero at the maximum height.

The maximum height is the point where the ball runs out of gas,
stops rising, starts falling, and it's velocity changes from upward
to downward.  At that instant, it has no speed, so its kinetic energy
is zero.

The major contribution of the French philosopher Rene Descartes was in the realm ofa. physics.
b. chemistry.
c. astronomy.
d. epistemology.

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The correct answer (d.) epistemology. The major contribution of the French philosopher Rene Descartes was in the realm of epistemology. Epistemology is the theory of knowledge, including methods, validity, and its scope. It could also be concluded to separate justified fact from an opinion.
The answer is epistemology. So d epistemology.

the mass of an object is a) equal to its weight on the surface of the earth. b) sometimes equal to its weight. c) never equal to its weight. d) equal to its weight in deep space.

Answers

Answer:

a) equal to its weight on the surface of the earth.

Explanation:

The mass of an object is a measure of the amount of matter it contains and is typically expressed in kilograms (kg) or grams (g). Weight, on the other hand, is the force of gravity acting on an object's mass. The weight of an object depends on the strength of the gravitational field it's in. On the surface of the Earth, where the gravitational field is relatively constant, an object's weight is directly proportional to its mass, and the two are equal. This relationship is described by the equation:

Weight (W) = Mass (m) x Acceleration Due to Gravity (g)

On the surface of the Earth, the acceleration due to gravity (g) is approximately 9.8 m/s². Therefore, an object's weight is equal to its mass times 9.8 m/s².

So, on the surface of the Earth, the mass of an object is equal to its weight. In deep space, where there is negligible gravitational force, an object's weight would be nearly zero, but its mass remains the same.

The four terrestrial planets that have solid, rocky surfaces areA. Mars, Venus, Earth, and Jupiter.
B. Mercury, Venus, Jupiter, and Mars.
C. Mercury, Jupiter, Saturn, and Mars.
D. Mercury, Venus, Earth, and Mars.

Answers

Mercury,Venus,Earth and Mars

Answer:

Mercury,Venus,Earth and Mars

Explanation:
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