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(a) An ideal gas occupies a volume of 1.2 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container
(b) If the pressure of the 1.2-cm3 volume is reduced to 1.2 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container?
Consider the situation where a 5 kg block sits on top of a 10 kg block. The two blocks rest on a horizontal frictionless surface. What is the acceleration of the "two block" system
A tennis player standing 10.7 m from the net hits the ball at 2.50° above the horizontal. how fast was the ball moving when it left the racquet
You are designing an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.57 times the passenger's weight. What is the maximum speed of the elevator
A cylinder of gas at room temperature (20°C) has a pressure p1. To what temperature in degrees Celsius would the temperature have to be increased for pressure to be 2.7p1.
This question requires three answers. Three resistors are connected in parallel with a 9.0 V battery. What is the voltage drop across R2
The average temperature in Gunnison for the first two months of the year are: 1) January (31 days) 10°F 2) February (28 days) 15° F. What are the total number of degree days for Gunnison over these two months?
A 2.0 kg ball swings in a vertical circle on the end of an 80cm long string. Calculate the speed, magnitude and direction of acceleration
Calculate the force on the baby due to Jupiter if it is at its closest to the Earth, some 6.29x1011 m away, showing it to be comparable to that of the father
Rank the vector combinations on the basis of their angle, measured counter clockwise from the positive x axis. Vectors parallel to the positive x axis have the angle of 0. All angle measures fall between 0 and 360.
A truck traveling at 60 mi/h brakes to a stop in 180 ft. What was the stopping time
flash decides to make a capacitor at homes. Flash takes two thin, flat, rectangular aluminum plates measuring 35 cmby 50 cm. find the capacitance of flash's creation
The length of a simple pendulum is 0.87 m and the mass of the particle (the "bob") at the end of the cable is 0.21 kg. What is the angular frequency of the motion
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