A charged particle (q = -8.0 mC), which moves in a region where the only force acting on the particle is an electric force, is released from rest at point A. At point B the kinetic energy of the particle is equal to 4.8 J. What is the electric potential difference VB - VA?
a. -0.60 kV
b. +0.60 kV
c. +0.80 kV
d. -0.80 kV
e. +0.48 kV
B
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Center of Mass: A 30-kg child stands at one end of a floating 20-kg canoe that is 5.0-m long and initially at rest in the water. The child then slowly walks to the other end of the canoe. How far does the canoe move in the water, assuming water friction is negligible?
A. 1.0 m B. 2.0 m C. 3.0 m D. 4.0 m E. 5.0 m
The ideal gas law treats gas as consisting of:
a. atoms. c. chemicals. b. molecules. d. bubbles.
After I dip a cup of water from the ocean, I can conclude that
A. the ocean temperature is higher because it never loses its heat. B. the ocean temperature is higher because it has more molecules in it. C. the temperature of the water in the cup is the same as the temperature of the water in the ocean. D. the temperatures are the same but the water in the cup has more energy.
While most large moons orbit counterclockwise above their planets' equators, the smaller moons often show eccentric or even retrograde orbits, suggesting capture
Indicate whether the statement is true or false