PHYSICS HIGH SCHOOL

If the spring constant is 10 N/m and the spring is stretched 1 m, what is the Force?

Answers

Answer 1
Answer:

Answer:

10N

Explanation:

Applying the Hooke law:

F = kx

F: Force

k: stiffness coefficient

x: stretched distance

F = 10N/m x 1m = 10N

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Brownian motion cannot be detected in colloids. True or false?

Answers

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As light from a star spreads out and weakens, do gaps form between the photons?

Answers

there are no gaps in space. the light from the star weekend as it travels, but it just reduces the strength and doesn’t produce gaps.

How does the current values in and out of the battery compare to the sum of currents going through the light bulbs?Note: This is for Parallel circuits.
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Answers

The current values in and out of the battery is going to be equal to the sum of the currents going through the light bulbs. In a parallel circuit, the current is divided as it enters different branches and light bulbs. However, the amount of current leaving the battery is always going to be the same as the amount of current entering the battery. Therefore, while current divides in a parallel circuit, the total amount of current always remains the same.

Wich is a scalar quantity
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Answers

Speed is the only one on the list
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A horse has an acceleration of 2 m/s2. If it starts from rest, how fast is it going after 1.7 seconds?

Answers


       (2  m/s²)  ·  (1.7  s)  =  3.4 m/s

1.17m/s2

I believe, you subtract 2-0 on top and 1.7-0 on the bottom and get 2/1.7 which is 1.17

Water pressure in a lake is greater __________. a. at the bottom b. at the surface c. at any point, for pressure is the same d. throughout midway to the bottom

Answers

Answer:

The correct answer  a

Explanation:

In the fluid pressure is a measure of force per unit area, in this case force is the weight of the fluid that increases as we descend. Therefore, the pressure increases with the depth of the fluid.

The correct answer  a

Answer:

a. at the bottom

Explanation:

Since water at the bottom of the lake is under pressure by all the water molecules above it plus atmospheric pressure. It is no doubt that the pressure at the bottom of the lake is larger than pressure in the middle and at the surface of the lake.
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