PHYSICS HIGH SCHOOL

Pls help me this is being timed. pls.
pls help me this is being timed. pls. - 1

Answers

Answer 1
Answer:

Answer:

10N each

Explanation:

Doing a little math here to make it balanced. 10+10=20 therefore you have the same on both sides.

Hope this helps!

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a sphere rolls down without slip on an inclined plane of inclination theta. what is the linear acceleration as the sphere reaches the bottom

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Answer:When a sphere rolls down an inclined plane without slipping, its linear acceleration at the bottom can be calculated using the following formula:

a = g * sin(theta)

where "a" is the linear acceleration, "g" is the acceleration due to gravity (approximately 9.8 m/s^2), and "theta" is the angle of inclination of the plane.

Let's break down the formula step by step:

1. First, we need to determine the component of the gravitational force that acts parallel to the inclined plane. This component is given by g * sin(theta), where "g" is the acceleration due to gravity and "theta" is the angle of inclination.

2. Since the sphere is rolling without slipping, the frictional force between the sphere and the inclined plane is responsible for its linear acceleration. This frictional force is equal to the component of the gravitational force parallel to the plane.

3. Therefore, the linear acceleration of the sphere as it reaches the bottom of the inclined plane is equal to the component of the gravitational force parallel to the plane, which is g * sin(theta).

For example, if the angle of inclination, theta, is 30 degrees, the linear acceleration of the sphere at the bottom of the inclined plane would be:

a = g * sin(30) = 9.8 m/s^2 * 0.5 = 4.9 m/s^2

So, the linear acceleration of the sphere as it reaches the bottom of the inclined plane would be 4.9 m/s^2 when the angle of inclination is 30 degrees.

Explanation:

Please help, question is timed...

Answers

Answer:

65

Explanation:

50+3*5

Which action is due to field forces?Select one of the options below as your answer: A. an apple falling from a tree B. a moving car stopping when the brakes are applied C. the rowing of a boat D. pushing a chair against the wall

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Field force is when the force which you  exert on prticular subject acts only on this subject, other subjects that sorround yours are not included, whereas the  like gravity acts equally on everything. So the correct answer is D. pushing a chair against the wall.

Answer:

D. pushing a chair against the wall.

Explanation:

Describe a situation when you might travel at a high velocity, but with low acceleration.

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Sitting in your seat, reading a book and dozing, on a passenger jet flying straight and level at cruising speed and altitude.

A radioactive substance is decaying exponentially. if there are initially 15 grams of the substance and after 120 minutes there are 4 grams, what is the half-life in minutes of the substance?

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