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Anna [14]
2 years ago
11

Memories

Physics
1 answer:
nevsk [136]2 years ago
7 0

Answer:

Its ok but the answer is C

Explanation:

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What color do glacier appear if they are moving towards us?
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Answer:

Subcategories: Ice field

Explanation:

Glacier ice is blue because the red (long wavelengths) part of white light is absorbed by ice and the blue (short wavelengths) light is transmitted and scattered. The longer the path light travels in ice, the more blue it appears.

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Difference between on pitch and frequency​
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Which of the following situations would cause the greatest decrease in the motion of molecules in a system?
Alina [70]

A. is the right answer since work is negative and Q which is heat in negative also

7 0
3 years ago
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Santa doesn't want to push a 25.0 kg wooden box across a wooden floor with a uk of 0.20 at
scZoUnD [109]

Answer:

49 N

Explanation:

In order to move the box at constant speed, the acceleration of the box must be zero (a=0): this means, according to Newton's second law,

F = ma

that the net force acting on the box, F, must be zero as well.

Here there are two forces acting on the box in the horizontal direction while it is moving:

- The force of push applied by the guy, F

- The frictional force, F_f

For an object moving on a flat surface, the frictional force is given by

F_f = \mu_k mg

where

\mu_k is the coefficient of friction

m is the mass of the box

g is the acceleration of gravity

So the equation of the forces becomes

F-\mu_k mg = 0

And substituting:

\mu_k = 0.20\\m = 25.0 kg\\g = 9.8 m/s^2

We find the force that must be applied by the guy:

F=\mu_k mg = (0.20)(25.0)(9.8)=49 N

6 0
3 years ago
During a car crash, why are airbags useful? 0.They decrease the amount of impulse applied to the you.
Vera_Pavlovna [14]

Answer:

They increase the time it takes to slow you down, which decreases the force applied to you.

Explanation:

Hope it helps :)))

3 0
2 years ago
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