In terms of a combination of three other symbols, the wavelength (?) of a moving particle is equal to ______________
Fill in the blank(s) with correct word
h/mv
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Suppose that an object is moving with constant acceleration. Which of the following is an accurate statement concerning its motion?
A) In equal times its speed changes by equal amounts. B) In equal times its velocity changes by equal amounts. C) In equal times it moves equal distances. D) The object is not moving; it is at rest. E) A statement cannot be made without additional information.
A mass is oscillating on a spring with a period of 4.60 s. At t = 0 s the mass has zero speed and is at x = 8.30 cm. What is the value of t the first time after t = 0 s that the mass is at x = 4.15 cm?
A) 0.575 s B) 0.767 s C) 1.15 s D) 1.30 s E) 1.53 s
About what percentage of the mass of the solar nebula consisted of hydrogen and helium gas?
A) 0.5 percent B) 5 percent C) 50 percent D) 98 percent E) 100 percent
Resistance
a) is measured in amperes. b) is the opposition to the flow of electric current. c) is the driving force that moves electrons in conductors. d) is not affected by temperature changes.