Why doesn't the Hubble Space Telescope need adaptive optics?
What will be an ideal response?
Adaptive optics correct poor seeing in our atmosphere, but above the atmosphere, Hubble always has perfect seeing and sharp images all the time.
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A tetherball is attached to a pole with a 2.0-m rope. It is circling at 0.20 rev/s. As the rope wraps around the pole, it shortens. How long is the rope when the ball is moving at 6.0 m/s?
a. 1.8 m c. 1.2 m b. 0.83 m d. 1.0 m
Where do landslides occur
What will be an ideal response?
A flask of water rests on a scale. If you dip your finger into the water, without touching the flask, the reading on the scale will
A) decrease. B) stay the same. C) increase. D) behave unpredictably.
An ideal gas is compressed in a well-insulated chamber using a well-insulated piston. This process is
A) isochoric. B) isothermal. C) adiabatic. D) isobaric.