If the volume of an object were to be halved with the same mass, its density would
a. halve b. double c. stay the same
b
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A parallel plate capacitor has a paper dielectric having dielectric strength 8.0 kV/mm and dielectric constant 3.0. The plate area is 3000 cm2 and the plate separation is 0.50 mm. What is the capacitance?
A. 16 nC B. 4.2 nC C. 5.3 nC D. 1.6 nC E. 4.2 pdf
A bullet is fired through a board, 14.0 cm thick, with its line of motion perpendicular to the face of the board. If it enters with a speed of 450 m/s and emerges with a speed of 220 m/s, what is the bullet's acceleration as it passes through the board?
A. ?500 km/s2 B. ?550 km/s2 C. ?360 km/s2 D. ?520 km/s2 E. ?275 km/s2
Which of the following is NOT an example of a demographic characteristic?
A. gender B. purchasing preferences C. age group D. income
Light takes approximately one second to travel from the Earth to the Moon. This means that the Moon is approximately
A) 1 astronomical unit from the Earth. B) 300,000 kilometers from the Earth. C) 3,000 kilometers from the Earth. D) 1 light year from the Earth. E) twice the distance from the Earth to the Sun.