Under what conditions do real gasses approximate the behavior of an ideal gas?
A. high temperature and low pressure
B. low temperature and low pressure
C. low temperature and high pressure
D. high temperature and high pressure
A. high temperature and low pressure
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A refrigerator is an example of a heat mover
Indicate whether the statement is true or false
You and Mae are in free-float frames. Mae has just passed you, traveling at a speed of 60 km/hr. You throw a ball toward her at a speed of 60 km/hr. What will Mae see the ball doing?
A) She'll see the ball stationary, floating freely in her own reference frame. B) She'll see the ball coming toward her at 60 km/hr. C) She'll see the ball moving away from her at 60 km/hr. D) She'll see the ball coming toward her at 120 km/hr.
The ____ of an object is a measure of the amount of matter it contains. On the other hand, ____ is a measure of the gravitational force on an object
a. weight, mass b. mass, weight c. energy, force d. force, energy e. momentum, energy
If Mars had liquid water on its surface in the distant past, then its atmosphere must have been ________ than it is now.
A. denser B. warmer C. wetter D. All of these choices are correct. E. None of these choices is correct.