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Sedaia [141]
3 years ago
14

Why does water break apart rock when it freezes?

Physics
2 answers:
MA_775_DIABLO [31]3 years ago
6 0

Answer:

Explanation:

Water expands when frozen and physically forces the rock apart. When water falls into rock cracks and freezes, As water expands on freezing it puts pressure on the walls of the rock deepening the crack and breaking it.

vivado [14]3 years ago
4 0
Because it expands explanation
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Sound travels at approximately 1,500 m/s in sea water. How far will a sonar pulse travel in 90 s?
pav-90 [236]

Answer:

135,000 m

Explanation:

(1500 m/s) (90 s) = 135,000 m

7 0
4 years ago
What type of material is thought to explain the larger size of the outer planets relative to the inner planets
svetoff [14.1K]

The material which is believed to explain the larger size of the outer planet in relation to the inner planet is gas while the inner is made of rock

Research on the solar system reveal to us that it is temperature of the the solar system that perfectly explain the materials both the outer and inner planets are made up of. The outer part is highly gaseous while the inner part is made of rocks

<h3>What is outer planet?</h3>

It refers to planet whose orbit lies outside the asteroid belt. Examples include Jupiter, Saturn, Uranus, or Neptune.

<h3>What is inner planet?</h3>

This simply means a planet whose orbit lies within the asteroid belt. They are planets such as Mercury, Venus, Earth, or Mars.

Learn more about planets:

brainly.com/question/11023671

5 0
2 years ago
A railroad car moves under a grain elevator at a constant speed of 3.20 m/s. Grain drops into the car at the rate of 240 kg/min.
dedylja [7]

Answer:

F = 768 N                  

Explanation:

It is given that,

Speed of the elevator, v = 3.2 m/s

Grain drops into the car at the rate of 240 kg/min, \dfrac{dm}{dt}=240\ kg/min = 4\ kg/s

We need to find the magnitude of force needed to keep the car moving constant speed. The relation between the momentum and the force is given by :

F=\dfrac{dp}{dt}

F=m\dfrac{dv}{dt}+v\dfrac{dm}{dt}

Since, the speed is constant,

F=m\dfrac{dv}{dt}

F=v\dfrac{dm}{dt}

F=3.2\times 240

F = 768 N

So, the magnitude of force need to keep the car is 768 N. Hence, this is the required solution.

5 0
4 years ago
Help me with both questions please?
Andrew [12]

Answer:

1. They all accelerate at the same rate.

2.The object travels at a constant velocity throughout the fall.

Explanation:

Earths gravitational pull is at a constant 9.08 m/s^2. so when objects are free falling, the objects in question can only fall so fast before it would break gravity so to speak.

3 0
3 years ago
1.In one challenge on the Titan Games, competitors have to lift 200 pounds up a long ramp. Angel is able to move the weight in 4
77julia77 [94]

#1).  Anthony does the same amount of work as Angel, with <em>more power</em>.

#2). Power = (Work)/(Time) = 41,000 J / 500 s  =  <em>82 watts .</em>

#3). Power = (Work) / (Time) = 83 J / 3 sec = <em>27.7 watts</em>

5 0
3 years ago
Read 2 more answers
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