Approximately how fast is a person located at the Earth's equator moving around Earth's axis due to the rotation of the Earth?
A) 17,000 km/hr
B) 1700 km/hr
C) 170 km/hr
D) 17 km/hr
E) not moving at all
B) 1700 km/hr
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Answer the following statement(s) true (T) or false (F)
1. The heat capacity of any energy storage mode with quantized energy levels goes to zero as the temperature T goes to zero. 2. The average x-velocity of molecules in a container of gas at rest is zero. 3. The average molecular speed is zero
Your weight is equal to mg when you are
A) firmly supported on a horizontal surface and in equilibrium. B) in Earth's gravitational field. C) anywhere except in Earth's orbit. D) all of the above
The half-angle of the conical shock wave produced by a supersonic aircraft is 60°. What is the ratio of the speed of the aircraft to the speed of sound?
A) 2.0 B) 1.7 C) 0.87 D) 1.2
The amount of diffraction a telescope creates depends upon:
A) whether the telescope is a refractor or a reflector. B) the wavelength and the diameter of the telescope objective. C) the magnification of the eyepiece. D) the types of glass used in the achromat. E) the transparency of the atmosphere.