Arrange the temperatures 40 ºF, 40 ºC, and 40 K from highest to lowest
a. 40 ºF, 40 ºC, 40 K b. 40 ºC, 40 K, 40 ºF
c. 40 ºF, 40 K, 40 ºC d. 40 ºC, 40 ºF, 40 K
d
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Find the momentum and speed of a proton whose kinetic energy equals its rest energy. (The mass of a proton is 938.3 MeV/c2).
What will be an ideal response?
If the mass of a cart is quickly loaded to have twice the mass while a propelling force remains constant, the cart's acceleration
A) quadruples. B) doubles. C) stays the same. D) halves. E) none of these
Supernova remnants _____
a. always contain pulsars, because pulsars supply the ionizing radiation b. often last longer than a pulsar does, so the central pulsar may no longer be visible c. rarely contain pulsars, because pulsar radiation disrupts the remnant d. may not contain a pulsar, if the supernova explosion kicked the pulsar away at high speed e. never contain pulsars
Which of the following is the de Broglie equation?
a. E = mc2 b. E = hf c. m?v?x ? h d. ? = h/mv