Answer:
the kinetic energy decreases and the potential energy Increases.
Explanation:
as the comet travels away from the star it gains an energy which it posses because of its position or state.once the comet moves away form the star the kinetic decreases until its lost all together to where the potential energy starts increasing.
Answer:
B. Neutral equilibrium
Explanation:
Equilibrium is defined as the point where the total net force on the system is zero and the net torque is zero as well.
Neutral equilibrium simply means when an object is displaced and obtains an entire new position.
Since the ice cube has been given a push, it slides down by changing it's position, this position changed makes its equilibrium neutral.
Answer:
The acceleration of the crate is 1 m/s²
Explanation:
It is given that,
Mass of the crate, m = 5 kg
Two forces applied on the crate i.e. one is 3.0 N to the north and the other is 4.0 N to the east. So, there resultant force is :
We need to find the acceleration of the crate. It is given by using the second law of motion as :
a = 1 m/s²
So, the acceleration of the crate is 1 m/s². Hence, this is the required solution.
Answer:
The compression in the spring is 9.64 meters.
Explanation:
Given that,
Mass of the train, m = 6251 kg
Speed of the train, v = 27 m/s
Spring constant of the spring, k = 48979 N/m
We need to find the compression in the spring when it comes to rest. It is a case of conservation of energy. The kinetic energy of the train is converted to elastic potential energy. So,
x is compression in spring
So, the compression in the spring is 9.64 meters.