Author Question: Kepler's second law tells us that a planet sweepa out equal areas in equal times. If you compare the ... (Read 50 times)

madam-professor · **on:** Jul 29, 2018

Kepler's second law tells us that a planet sweepa out equal areas in equal times. If you compare the amount of area per time swept by Earth with the one of Jupiter, you would conclude:

A)

They sweep the same area per time.
B)

Jupiter sweeps a larger area per time because it has much more mass than Earth.
C)

Jupiter sweeps a larger area per time because it has a much larger orbital path than Earth.
D)

Earth sweeps a larger area per time because it has much less mass than Jupiter.
E)

Earth sweeps a larger area per time because it has a much smaller orbital path than Jupiter.

Question 2

A 45-mH inductor is connected in series with a 60- resistor through a 15-V dc power supply and a switch. If the switch is closed at t = 0 s, what is the current after 7.0 ms?

A)

250 mA
B)

650 mA
C)

550 mA
D)

280 mA
E)

850 mA