Answer:
The fraction of kinetic energy lost in the collision is 0.25 .
Explanation:
We know , momentum will be conserved along x direction .
Therefore ,
Now , fraction lost in kinetic energy is :
Therefore , the fraction of kinetic energy lost in the collision is 0.25 .
Answer:
Part a)
Part b)
Explanation:
Part a)
As we know that the gas equation is given as
so here we know that
Now in order to find the final volume we have
Part b)
Work done in this process is given as
<h3><u>Given</u><u>:</u><u>-</u></h3>
Force,F = 10,000 N
Acceleration,a = 27 m/s²
<h3><u>To</u><u> </u><u>be</u><u> </u><u>calculated:-</u><u> </u></h3>
Calculate the mass.
<h3><u>Solution:-</u><u> </u></h3>
As We know that,
★ Putting the values in the above formula,we get:
Answer:A. I expect the molecules in ice to move more quickly than the molecules in water vapor.
Explanation:
Answer:
The total mechanical energy of a pendulum is conserved neglecting the friction.
Explanation:
- When a simple pendulum swings back and forth, it has some energy associated with its motion.
- The total energy of a simple pendulum in harmonic motion at any instant of time is equal to the sum of the potential and kinetic energy.
- The potential energy of the simple pendulum is given by P.E = mgh
- The kinetic energy of the simple pendulum is given by, K.E = 1/2mv²
- When the pendulum swings to one end, its velocity equals zero temporarily where the potential energy becomes maximum.
- When the pendulum reaches the vertical line, its velocity and kinetic energy become maximum.
- Hence, the total mechanical energy of a pendulum as it swings back and forth is conserved neglecting the resistance.