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andre [41]
3 years ago
10

Does someone know were I can get the answers to the Gizmo Energy of a Pendulum

Physics
1 answer:
bearhunter [10]3 years ago
4 0

Answer: i need a gizmo account

Explanation:

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Alice's friends Bob and Charlie are having a race to a distant star 10 light years away. Alice is the race official who stays on
hodyreva [135]

Solution :

The distance between the starting point and the end point, L_0 = 10 light years

But due to the relativistic motion of Bob and Charlie, the distance will be reduced following the Lorentz contraction. The contracted length will be different since they are moving with different speeds.

For Bob,

Speed of Bob's rocket with respect to Alice, L_b = 0.7  \ c

So the distance appeared to Bob due to the length contraction,

$L_b=L_0\sqrt{1-\frac{V_b^2}{c^2}$

$L_b=10\times \sqrt{1-0.49} \ Ly$

    $=7.1 \ Ly$

Therefore, the time required to finish the race by Bob is

$t_b = \frac{L_b}{V_b}$

  $=\frac{7.1 \ c}{0.7 \ c}$

  = 10.143 year

For Charlie,

Speed of Charlie's rocket with respect to Alice, L_c = 0.866 \ c

So the distance appeared to Charlie due to the length contraction,

$L_b=L_0\sqrt{1-\frac{V_c^2}{c^2}$

$L_b=10\times \sqrt{1-0.75} \ Ly$

    $=5 \ Ly$

The time required to finish the race by Charlie is

$t_b = \frac{L_c}{V_c}$

  $=\frac{5 \ c}{0.866 \ c}$

  = 5.77 year

5 0
3 years ago
Explain why is dressing table mirror may become dirsty if wiped with a cloth on a warm day.​
gogolik [260]
<h2>Answer:</h2>

<em>When you rub a dry cloth across glass, it creates charged static electricity, which attracts little non-charged dust particles.</em>

6 0
2 years ago
What happens to the density of an object if the mass increases, but the volume remains the same?
mel-nik [20]

A measure of mass per unit of volume. It is how much material a certain volume contains. ... If the volume of the object stays the same but the mass of the object increases then its density becomes greater.

5 0
3 years ago
The Celsius tempersture scale is based on which of the following? a) vapor b) the human body c) the boiling point of air d) the
Darina [25.2K]
I think d is the correct answer
8 0
3 years ago
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Which planet weighs twice as much as all other planets.
Bumek [7]

Answer:

Jupiter. Although it is a gas planet, it has a ton of mass. Mass can determine the weight of an object. We can thereby assume that Jupiter weighs way more than most planets.

8 0
2 years ago
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