When plates collide, they fuse together and come to rest
Indicate whether the statement is true or false
FALSE
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The characteristic peaks in an x-ray spectrum of an atom occur because of rapid deceleration of the bombarding electrons
a. True b. False Indicate whether the statement is true or false
An ideal Carnot engine is operated as a heat pump to heat a room in the winter. The heat pump delivers heat to the room at the rate of 47 kJ per second and maintains the room at a temperature of 293 K when the outside temperature is 237 K
The power requirement to run the heat pump under these operating conditions is closest to A) 9000 W. B) 7100 W. C) 20,000 W. D) 15,000 W. E) 11,000 W.
Assuming that the gravitational acceleration is constant and equal, in magnitude, to the acceleration of gravity at the surface of the earth,
how far would light deflect from a straight line path as it travels one Earth diameter, 1.28 × 107 m? A) 25.4 cm B) 8.94 mm C) 3.14 m D) 1.77 cm E) 12.7 cm
A wire has a cross-sectional area of 0.10 mm2. If there are 4.0 × 1028 atoms per cubic meter in this wire, and if each atom contributes 2 free electrons, what is the drift velocity of the electrons when the current in the wire is 6.0 A?
(e = 1.60 × 10-19 C) A) 0.0047 m/s B) 0.0092 m/s C) 0.94 m/s D) 0.019 m/s