An impact which stops a moving object must do enough work to take away its kinetic energy, so extending the distance moved during the collision reduces the impact force.
Answer:
The water particles move perpendicular to the source of the sound wave.
Explanation:
Water particles are transverse waves
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Answer:
The answer is A.) Mass is a measure of the amount of matter in an object, while weight is a measure of the force of gravity on the object.
Explanation:
Your weight would change if you went to the moon because the gravitational pull is different but your mass would stay the same because the amount of matter in you wouldnt change.
Answer:
0.55 m/s
Explanation:
Parameters given:
Mass of lighter car, m = 1400 kg
Mass of heavier car, M = 1850 kg
Initial speed of lighter car, u = -1.10 m/s (since it's moving to the left)
Initial speed of heavier car, U = 1.5 m/s
Final sped of heavier car, V = 0.25 m/s
Using the principle of conservation of momentum, total initial momentum is equal to total final momentum:
m*u + M*U = m*v + M*V
Inputting the values:
(1400 * -1.1) + (1850 * 1.5) = (1400 * v) + (1850 * 0.25)
-1540 + 2775 = 1400v + 462.5
1235 = 1400v + 462.5
1400v = 772.5
v = 772.5/1400
v = 0.55 m/s