Answer:
the neutron star becomes a black hole
Machine C. Machine A has an efficiency of 250/1000 = 0.25 = 25%, Machine B's efficiency is 350/500 = 0.7 = 70% and Machine C has an efficiency of 150/200 = 0.75 = 75%.
Answer:
Explanation:
As the pendulum reached to the lowest position then we will have
now when it will reach to the height of the peg then its speed is given as
so we will have
also we know that
now we have speed of the pendulum when it reach the same height is given as
Now the tension in the string is given as
Answer:
A force unit is defined as the product of a mass unit and a unit of acceleration.
Typical examples of inelastic collision are between cars, airlines, trains, etc.
For instance, when two trains collide, the kinetic energy of each train is transformed into heat, which explains why, most of the times, there is a fire after a collision. However, the momentum of the two trains that are involved in the collision remains unaffected. So, the trains collide with all their speed, maintaining their momentum, yet their kinetic energy is transformed into heat energy.
Another way to explain a train or a car collision is this: when the two trains or cars collide, they stick together while slowing down. They slow down because their kinetic energy is gradually lost. Still, they collide because they conserve their momentum.
