Weegy: The kind of friction that occurs as fish swim through water is C. sliding
User: If no friction acts on a diver during a dive, then which of the following statements is true?
A. The total mechanical energy of the system increases.
B. Potential energy can be converted into kinetic energy but not vice versa.
C. (KE+ PE)beginning = (KE + PE)end
D. all of the above
Weegy: If no friction acts on a diver during a dive then (KE+ PE)beginning = (KE + PE)end. (answer C)
User: The gravitational potential energy of an object is always measured relative to the
A. location where the object’s kinetic energy is zero.
B. position of maximum mechanical energy.
C. reference level from which the height is measured.
D. surface of Earth.
Weegy: C. reference level from which the height is measured
User: Nuclear power plants are designed to convert nuclear energy into what type of energy?
A. geothermal
B. mechanical
C. chemical
D. electrical
Weegy: Nuclear power plants are designed to convert nuclear energy into electrical energy.
User: A 4-kilogram cat is resting on top of a bookshelf that is 3 meters high. What is the cat’s gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8 m/s2?
A. 7 J
B. 12 J
C. 29 J
D. 118 J
Weegy: B. 12
User: Which of the following types of transportation is NOT mass transportation?
A. bus
B. car
C. streetcar
D. train
Weegy: B. car is NOT a mass transportation.
User: A 13-kg sled is moving at a speed of 3.0 m/s. At which of the following speeds will the sled have twice as much kinetic energy?
A. 1.5 m/s
B. 4.2 m/s
C. 6 m/s
D. 9 m/s
Weegy: B. 4.2 m/s
User: Which of the following is an example of an object with elastic potential energy?
A. a wind-up toy that has been wound up
B. a compressed basketball
C. a stretched rubber band
D. all of the above
Weegy: The ...
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