The rate of flashing of a pulsar is a measure of its ________
Fill in the blank(s) with correct word
spin or rotation
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Springs: An ideal spring has a spring constant (force constant) of 2500 N/m. is stretched 4.0 cm. How much work is required to stretch the spring by 4.0 cm?
A. 4.0 J B. 0.00 J C. 1.0 J D. 3.0 J E. 2.0 J
Waves travel along a 100-m length of string which has a mass of 55 g and is held taut with a tension of 75 N. What is the speed of the waves?
A) 3700 m/s B) 370 m/s C) 37 m/s D) 0.37 m/s E) 3.7 m/s
Alpha, beta, and gamma particles are all deflected by a magnetic field
a. True b. False Indicate whether the statement is true or false
An Earth satellite is orbiting at a distance from the Earth's surface equal to one Earth radius (4 000 miles). At this location, the acceleration due to gravity is what factor times the value of g at the Earth's surface?
a. There is no acceleration since the satellite is in orbit. b. 2 c. 1/2 d. 1/4