Two moles of an ideal gas at 3.0 atm and 10°C are heated up to 100°C. If the volume is held constant during this heating, what is the final pressure?
a. 4.5 atm
c. 0.14 atm
b. 4.0 atm
d. 1.0 atm
B
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Projectile Motion: A child throws a ball with an initial speed of 8.0 m/s at an angle of 40° above the horizontal. The ball leaves her hand 1.0 m above the ground and experiences no appreciable air resistance as it moves.(a) How far from where the child is standing does the ball hit the ground?(b) How long is the ball in flight before it hits the ground?(c) What is the magnitude of the ball's velocity just before it hits the ground?
What will be an ideal response?
LCD stands for:
a. linearly collimated diffraction. b. longitudinally combined depolarization. c. liquid crystal display. d. lighted compact disk.
The Doppler effect is sensitive only to motion along the line of sight
Indicate whether the statement is true or false
A single brick falls with acceleration g. The reason a double brick falls with the same acceleration is
A) that in free fall all accelerations are g. B) its ratio of force to mass is the same. C) an experimental fact tested many times. D) none of the above