PHYSICS HIGH SCHOOL

if the earth stops rotating about its axis then what will be the change in the value of g at a place in the equator-plane? Assume that earth is a sphere with a radius of 6.4*10*6m.

Answers

Answer 1
Answer:

Answer:

if the earth stops rotating the value of g increases

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A metal pot feels hot to the touch, but the plastic handle does not. Which type of material is the plastic handle? A. A thermal insulator, because it transfers heat easily B. A thermal conductor, because it does not transfer heat easily C. A thermal conductor, because it transfers heat easily D. A thermal insulator, because it does not transfer heat easily

Answers

Answer:

Option (D)

Explanation:

There are two types of materials.

1. Conductors: The materials which can allow the heat to pass through it are called conductors. For example, iron, copper, etc.

2. Insulators: The materials which do not heat to pass through it are called insulators. For example, plastic, wood, rubber, etc.

Here plastic handle does not feel hot because it is an insulator and it does not allow to pass the heat through it.
D is the answer..........

Which describes the characteristics of a liquid?a. It has no fixed volume or shape.
b. It has a fixed volume and shape.
c. It has high energy and expands to fill the container.
d. It has a fixed volume and varied shape.

Answers

What happens when you pour water in a glass? It takes the shape of the glass. This means that water can't have a fixed shape or volume

Discuss a physical activity that benefits muscular strength and describe at least two other benefits of performing this activity.

Answers

Yoga- It benefits muscular strength as well as core balance and flexibility.
It also improves respiration, energy and vitality.

Explain why the current is reduced as electrons move through a conductor.

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The current is reduced as less energy is available to move electrons through the wire.


This is because electrons moving through the conducting substance collide with the electrons and ions.


This causes collisions which further more convert kinetic energy into thermal energy because of the fewer energy that is available, it reduces.


Moreover the resistivity factor of the conductor it self might play some role and the loss of energy too.
as current moves through the conductor; the resistance of the conductor causes the original amount of current to reduce do to the length and the cross section size of the wire.

Which has more heat, a home oven at 500 degrees Celsius, or a one ton commercial oven at 500 degrees celsius?

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A commercial oven because it is more durable plus it’s more professional so they use more heat then we do at home

In this graph, what is the displacement of the particle in the last two seconds?of the particle in the last two seconds? 

0.2 meters
2 meters
4 meters
6 meters

Answers

In this graph, what is the displacement of the particle in the last two seconds?of the particle in the last two seconds? 

0.2 meters
2 meters
4 meters
6 meters
In this graph, the displacement of the particle in the last two seconds is 2 meters.
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