Because of their short lifetimes, very few muons that are produced in the upper atmosphere at high speeds should be observed at the surface of the earth. Yet we detect large numbers of muons at ground level because of the special relativistic effect of __________
Fill in the blank(s) with correct word
time dilation
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An irregular galaxy contains mostly
a. lower-main sequence stars and giants. b. upper main sequence stars and giants. c. upper main sequence stars and gas and dust. d. upper and lower main sequence stars and gas and dust. e. white dwarfs and supergiants.
A 6.0-?F capacitor charged to 50 V and a 4.0-?F capacitor charged to 34 V are connected to each other, with the two positive plates connected and the two negative plates connected. What is the total energy stored in the 6.0-?F capacitor at equilibrium?
A. 6.1 mJ B. 5.7 mJ C. 6.6 mJ D. 7.0 mJ E. 3.8 mJ
Larger batteries have higher output voltages
Indicate whether the statement is true or false
Earth moves about 30 km/s relative to the Sun. When you jump upward in front of a wall, the wall doesn't slam into you at 30 km/s because the wall
A) has too little gravity to influence you. B) moves in the opposite direction to you. C) and you move at the same horizontal speed, before, during, and after your jump. D) has negligible inertia compared with the Sun.