Answer:
400 kg.m/s
Explanation:
In a closed system, the principle of conservation of momentum applies. It means. the total momentum before collision equals to the total momentum after collision hence since the initial momentum is given as 400 kg.m/s, the final sum will be the same.
Answer:
1. they both act on an object in free fall
Explanation:
2. both help determine how fast the object will accelerate
Answer:
The deviation of a mirror is equal to twice the angle of incidence.The total angle between the straight-line path and the reflected ray is twice the angle of incidence. This is called the deviation of the light and measures the angle at which the light has strayed from its initial straight-line path.
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By dropping a ball and seeing how long it takes to hit the ground or throw a ball up and time it as well
Answer:
b. melting
Explanation:
it is made of sediments and that is not necessary