Answer:
Answer in below and plz mark me as brainlist plz
Explanation:
The rate of change of momentum =tm(v−u) Rate of change of momentum = force applied. Force∝tm(v−u) Velocity is the rate of change of displacement and acceleration is the rate of change of velocity. Impulse is a change in momentum
Answer:
If you imagine thhat you will repeat the experiment in an airleas tube or a vacuum is that if you repeat the experiment with the airleas tube that you will noot be able to use more air to blow or add air to your experiment but if you use a vacuum you can keep reusing the air because the filters in the vacum produces clean air.
Explanation: I am not sure this is the answer is what you were looking for. If this is Wrong im sorry.
I believe the correct answer would be zero. The work done in the truck is equal zero since the truck is not moving. Work by definition is the product of force and distance traveled due to the force. In this case, distance is zero giving us a zero work. Hope this helps.
Answer:
F = G M m / R^2 = 6.67E-11 * 1.99E30 * 5.98E24 / (1.5E11)^2
F = 6.67 * 1.99 * 5.98 / 2.25 E21 Newtons
F = 3.53E22 N
Kinetic energy is defined
KE = 1/2 * m * v^2
Let's put in the numbers
KE = 1/2 * 30 * 20^2 = 6000
Therefore, the answer is a) 6000 J