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VikaD [51]
3 years ago
12

Give a specific example of a vector quantity. why this type of quantity would be used to describe this event ?

Physics
1 answer:
Anarel [89]3 years ago
3 0

example force. because you can say" I applied  3 newtons downward to the floor".

force has magnitude and direcion

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If spring has a spring constant of 500 N/m and is stretched .50 meters,how much energy is stored in the spring ((show work for f
Free_Kalibri [48]

Answer:

The energy stored is: 62.5 Joules

Explanation:

Given

k = 500N/m --- spring constant

x = 0.5m --- stretch

Required

The amount of energy

This is calculated as:

U = \frac{1}{2} kx^2

U = \frac{1}{2} * 500N/m * (0.5m)^2

U = 250N/m * (0.5m)^2

U = 62.5\ J

7 0
2 years ago
The Earth is constantly spinning on its axis, like you might spin a basketball on your finger. It is this spinning of the Earth
mash [69]

<u>Answer:</u>

The spinning of the earth around its own axis causes day and night.

<u>Explanation:</u>

Earth has two types of motions. It spins around its own axis causing day and night every 12 hours and completes a rotation in 23.93 hours that make a full day. The part of the earth that faces sunlight during spinning experiences day and the other part has night.  It also rotates around the sun and completes one rotation in 365 days that makes a year.

5 0
3 years ago
A sample of an ideal gas at Pi is initially confined to one chamber of the apparatus represented above, and the other chamber is
stiv31 [10]

If the gas is ideal, the internal energy depends only on the temperature. Therefore, when an ideal gas expands freely, its temperature does not change.

When the valve of the chamber opens, the ideal gas expands and since, it is free to move its entropy increases. Entropy is a measure of uncertainty or randomness. Thus, ΔS becomes positive.

7 0
3 years ago
What is the density of a salt solution if 50.0 ml has a mass of 57.0 g?
steposvetlana [31]
Density = mass / volume, so 5.70 g divided by 50.0 ml should make the density <span>1.036 g/ml</span>
8 0
3 years ago
I'm contrast to Venus the coldest temperature yet measured on the surface of any body in the solar system is -235C
DENIUS [597]

Answer:

Explanation:

I don't get what the relation here is. Venus is the hottest planet in our solar system. And yes, it's hotter than mercury despite mercury being closer to the sun. And your question talks about the coldest temperature measured which is -235 degrees Celsius. That surely isn't measured on Venus. I'm only wondering what Venus has got to go with cold and what exactly your question is

6 0
3 years ago
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