If the current drawn from a 12-volt car battery is 100 amperes when it is short circuited with a wire, the resistance of the wire is 0.12 ohms
a. True
b. False
Indicate whether the statement is true or false
True
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Mary is 3.00 meters from the center of a merry-go-round. Her tangential speed is 1.88 m/s
(a) What is her angular speed in rad/s? (b) What is her acceleration while her speed remains 1.88 m/s?
How do we specify the location of a star on the celestial sphere?
The product of the frequency of a periodic wave times its wavelength gives the ________ of the wave.
Fill in the blank(s) with the appropriate word(s).
Why does the rotation of a protostar slow down over time?
A) All rotating objects slow down over time. B) Magnetic fields can transfer angular momentum to the protostellar disk and protostellar winds can carry angular momentum away. C) The onset of fusion causes the rotation rate to slow dramatically. D) Magnetic fields of other stars interact with the magnetic fields of the protostars, slowing its rotation.