The ratio of kinetic energy of object A to the kinetic energy of object B is 2:1. Object A is moving with a speed of 6.0 m/s and object B is moving with a speed of 2.0 m/s. If the mass of object A is 4.0 kg then what is the mass of object B?
A) 2.0 kg
B) 4.0 kg
C) 8.0 kg
D) 18 kg
E) 16 kg
D
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As frequency is varied in an RLC series circuit, resonance is reached when
A. the voltages VR, VL and VC all become equal. B. the voltages VL and VC become zero. C. the voltage VR becomes equal to the source voltage. D. None of the choices are correct.
It's hot as blue blazes outside so you stand in front of your refrigerator with the door open to cool off. If you stand there long enough,
A. the room will eventually get colder. B. the room will stay the same temperature. C. the room will eventually get warmer.
Most meteorites from the inner solar system originate from
A) the Moon B) Mars C) Mercury D) Venus
Two events occur 5.0 s apart in time and 3.0 s apart in space. A clock traveling at a speed of 0.60 can be present at both these events. What time interval will such a clock measure between the events?
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