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strojnjashka [21]
3 years ago
13

A ball strikes a wall. It exerts a force of 10 N to the left against the wall and bounces off. What force does the wall exert on

the ball?
Physics
2 answers:
Galina-37 [17]3 years ago
6 0
The wall exerts a force of equal magnitude but in the opposite direction. So the force by the wall is 10 N to the right.
elena-s [515]3 years ago
4 0

For this case, when the ball bounces, we can make a free-body diagram in a horizontal direction, obtaining:

-10 + F = 0

Where,

F: force that the wall exerts on the ball.

Clearing the value of F we have:

F = 10 N

Therefore, the wall exerts a force of 10 N on the ball, and the direction of the force is to the right.

Answer:

the wall exerts 10N on the ball to the right

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Answer:

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Explanation:

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Salt water is denser than fresh water. a ship floats in both fresh water and salt water. compared to the fresh water, the volume
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The ship floats in water due to the buoyancy Fb that is given by the equation:

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The density of salt water is in average ρ₂=1025 kg/m³.

To compare the volumes of liquids that are displaced by the ship we can take the ratio of buoyancy of salt water Fb₂ and the buoyancy of fresh water Fb₁.

The gravity force of the ship Fg=mg, where m is the mass of the ship and g=9.81  m/s², is equal to the force of buoyancy Fb₁ and Fb₂ because the mass of the ship doesn't change:
 
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Now we can write:

Fb₂/Fb₁=(ρ₂gV₂)/(ρ₁gV₁), since Fb₁=Fb₂, they cancel out:

1/1=1=(ρ₂gV₂)/(ρ₁gV₁), g also cancels out:

(ρ₂V₂)/(ρ₁V₁)=1, now we can input ρ₁=1000 kg/m³ and ρ₂=1025 kg/m³

(1025V₂)/(1000V₁)=1

1.025(V₂/V₁)=1

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V₂=0.9756V₁

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An experiment yielded the above temperature and time information. what is the freezing point of the material in this experiment
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The answer is 0 degrees Celsius (0°C). It will be where the line flat lines the first time.  The second time would be the boiling point.  An experiment yielded the above temperature and time information. The freezing point of the material in this experiment if the material is a solid at time zero is 0 degrees Celsius (0°C) .
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A ball is thrown against a wall and bounces back toward the thrower with the same speed as it had before hitting the wall. Does
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Answer:

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The opening to a cave is a tall, 30.0-cm-wide crack. A bat is preparing to leave the cave emits a 30.0 kHz ultrasonic chirp. How
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Answer:

The value is  w =  7.54 \  m        

Explanation:

From the question we are told that

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