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3 years ago

Why do we see the sun before it actually rises in the morning?

Physics

1 answer:

Lera25 [3.4K]3 years ago

6 0

Answer:

It appears to rise and set because of the Earth's rotation on its axis. It makes one complete turn every 24 hours. It turns toward the east. As the Earth rotates toward the east, it looks like the sun is moving west.

Explanation:

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3 years ago

A 10- kg ball starting from rest rolls down a 5 m tall smooth hill from one person to another person who is standing at the bott

olya-2409 [2.1K]

Answer: 3.13 m

Explanation:

Given

mas of the ball is m=10 kg

The ball rolls down a vertical distance of 5 m

Spring constant of spring is $k=100\ N/m$

Here, the potential energy of the ball converted into kinetic energy which in turn converts into elastic potential energy

$\Rightarrow mgh=\frac{1}{2}kx^2\quad [\text{x=compression in the spring}]\\\\\Rightarrow 10\times 9.8\times 5=\frac{1}{2}\cdot 100\cdot x^2\\\Rightarrow x=\sqrt{9.8}\\\Rightarrow x=3.13\ m$

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3 years ago

What is 1 joule work?

larisa86 [58]

$\large\color{pink}{{★ƛƝƧƜЄƦ ↦}}$

The amount of work done when a the force of 1 Newton displaces a body through a distance of 1m in the direction of the force applied is said to be as 1joule work

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