Which of these vary for satellites in elliptical orbits?

A) speed.
B) momentum.
C) kinetic energy.
D) all of the above
E) none of the above


Answer: D

Physics & Space Science

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At which of the following temperatures would we expect gas molecules to have half the energy that they have at 100.°C?

A) 93. K B) 50.°C C) -86.°C D) -56.°C E) 323. K

Physics & Space Science

The statement "It will be 87°F today" is an example of what

What will be an ideal response?

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A heater is rated at 1200 watts for a 120-volt source.The current drawn by the heater is __________

Fill in the blank(s) with correct word

Physics & Space Science

Suppose you are sitting at the origin of an inertial reference frame. You see (that is, you receive the light from) an event E occurring near a clock at x = -30 ns at a time t = 80 ns. When do you observe that event to occur?

A. tE = 0 B. tE = 30 ns C. tE = 50 ns D. tE = 80 ns, of course E. tE = 110 ns F. Some other time (specify)

Physics & Space Science