How much thermal energy must be added to 7.10 moles of a diatomic ideal gas to raise its temperature 22.1 K?
a. 652 J
b. 1 960 J
c. 4 570 J
d. 3 260 J
e. 3 520 J
d
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The upward force exerted by a fluid on an object immersed in it is called
a. gravitational force. b. atmospheric force. c. buoyant force. d. weight. e. none of the above.
A 340-g air track cart traveling at 1.25 m/s suddenly collides elastically with a stationary 300-g cart. What is the speed of the 300-g cart just after the collision?
A) 0.0781 m/s B) 1.33 m/s C) 0.625 m/s D) 1.25 m/s E) 0.664 m/s
An aircraft weighing 1,500 N has a mass of 153 kg
a. True b. False Indicate whether the statement is true or false
The highest mountain on Mars is Olympus Mons, rising 22,000 meters above the Martian surface. If we were to throw an object horizontally off the mountain top, how long would it take to reach the surface? Note: Ignore atmospheric drag forces and use gMars = 3.72 m/s2
a. 1.8 minutes c. 3.0 minutes b. 2.4 minutes d. 0.79 minute