A 2500-kg truck moving at 10.00 m/s strikes a car waiting at a traffic light, hooking bumpers. The two continue to move together at 6.00 m/s. What was the mass of the struck car?
a. 1730 kg
c. 1200 kg
b. 1670 kg
d. 1070 kg
B
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In a thermodynamic process, the internal energy of a system in a container with adiabatic walls decreases by 800 J. Which statement is correct?
a. The system lost 800 J by heat transfer to its surroundings. b. The system gained 800 J by heat transfer from its surroundings. c. The system performed 800 J of work on its surroundings. d. The surroundings performed 800 J of work on the system. e. The 800 J of work done by the system was equal to the 800 J of heat transferred to the system from its surroundings.
Every location on the celestial sphere is part of some
a. degree. b. tropic. c. constellation. d. sign.
The more massive star in a binary system is always farthest from the center of mass
a. True b. False Indicate whether the statement is true or false
Which cloud types are associated with the following characteristics: thunder, halos, precipitation, hail, mackeral sky lighting, and mares' tails?