Answer: 0 J
Explanation: there’s no movement if it’s a wall
Answer:
c
Explanation: kinetic energy being transferred from one object to another. Kinetic energy is the energy of mass in motion. The kinetic energy of an object is the energy it has because of its motion.
Answer:
The answer from this question is 3 m/s2.
Explanation:
8 m/s is initial velocity and 32 is final velocity. According to the rule of acceleration vf - vi we minus 8 from 32. Acceleration is the change of velocity per unit time. Then the difference (32 - 8= 24) is divided to 8. We get 3.
Answer:
Explanation:
Given that,
The radius of sphere, r = 5 cm = 0.05 m
Net charge carries, q = 7.5 µC = 7.5 × 10⁻⁶ C
We need to find the surface charge density on the sphere. Net charge per unit area is called the surface charge density. So,
So, the surface charge density on the sphere is 
.
Forces cause acceleration.
