What is the net force acting on this box?

Which statement is true according to Hooke's law?

Mkey [24]

Hooke's law:

F = -kx

F is the spring force, k is the spring constant, and x is the displacement of the spring. The negative sign is there to indicate that the force acts in the opposite direction of the displacement (e.g. if you stretch a spring towards the right, you will feel a force pulling towards the left).

Looking at Hooke's law, the magnitude of the force is directly proportional to its displacement; that is to say, if the displacement increases, so does the magnitude of the spring force, and if the magnitude of the force increases, this necessitates an increase in the displacement.

1. As the force on a spring increases, the distance it stretches decreases.

An increase in force necessitates an increase in displacement. This statement is false.

2. As the force on a spring increases, the distance it stretches increases.

An increase in force necessitates an increase in displacement. This statement is true.

3. As the force on a spring increases, the spring's length remains unchanged.

An increase in force necessitates an increase in displacement. This statement is false.

4. The distance a spring stretches has nothing to do with how much force is applied to it.

Hooke's law shows that the spring force and its displacement are very much dependent on each other. This statement is false.

Only statement 2 is true. As the force on a spring increases, the distance it stretches increases.

3 0

3 years ago

The pressure at the bottom of a jug filled with water does NOT depend on the

pickupchik [31]

Answer:

D) surface area of the water

Explanation:

The pressure at the bottom of a column of fluid is given by Stevino's law:

$p=\rho g h$

where

p is the pressure at the bottom of the column

$\rho$ is the density

g is the acceleration due to gravity

h is the depth of the liquid

So, we see that the pressure at the bottom of a jug filled with water depends on all these quantities:

A) depth of the liquid

B) acceleration due to gravity

C) density of water

While it does not depend on:

D) surface area of the water

5 0

3 years ago

How do we know how much<br> gravitational force objects have?

Rina8888 [55]

Answer:

With a force of 1 Newton, an object weighing 100 grams is dragged towards the planet's center. On Earth, an item with a mass of 100 grams has a gravitational pull of only 1%, or about kg.

Explanation:

i hope this helps

3 0

3 years ago

an object is placed in front of a curved mirror as shown. which of the labeled positions is the current position of the image

alexandr402 [8]

Answer:A

Explanation:

The image is formed behind the mirror.

4 0

3 years ago

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