Have some fr/ee points because i finished highschool today :)

Physics

1 answer:

Aleks04 [339]2 years ago

3 0

Answer:

Thank you :)

Explanation:

And congrats on finishing !!

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A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at

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Answer:

The first

Explanation:

Cause it will continue in motion till another force is applied

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Since the Sun has more mass, why do objects on earth not move closer to the Sun instead of staying put on Earth?

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Because the Earth has it's own gravity that keeps us put, and we also have the moon.

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a car with a mass of 2000 kilograms is moving around a circular curve at a uniform velocity of 25 meters per second. The curve h

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In the given problem, we say various information's that are going to help us reach the ultimate answer to the question. Let us first write the information's that have been presented in front of us.
Mass of the car = 2000 kg
Velocity of the car = 25 m/s^2
Radius of the circle = 80 m
Now we already know the equation for calculating the centripetal force and that is
Centripetal Force = [mass * (velocity)^2]/Radius
      = [2000 * (25)^2]/80
      = (2000 * 625)/80
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So the centripetal force on the car is 15625 Newtons

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What was one main point of Dalton's atomic theory

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All matter is composed of atoms, indestructible building blocks.

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Which one of the following statements concerning the Stefan-Boltzmann equation is correct? The equation can be used to calculate

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"The equation can be used to calculate the power absorbed by any surface" statement concerning the Stefan-Boltzmann equation is correct.

Answer: Option A

<u>Explanation:</u>

According to Stefan Boltzmann equation, the power radiated by black body radiation source is directly proportionate to the fourth power of temperature of the source. So the radiation transferred is absorbed by another surface and that absorbed power will also be equal to the fourth power of the temperature. So the equation describes the relation of net radiation loss with the change in temperature from hotter temperature to cooler temperature surface.

$P=e \sigma A\left(T^{4}-T_{c}^{4}\right)$

So this law is application for calculating power absorbed by any surface.

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