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A balloon whose volume is 500m3 is to be filledwith hydrogen at atmospheric pressure. If the hydrogen isstored in cylinders having a volume of 2.50 m3 at anabsolute pressure of 35X105 Pa. How many cylinders are required? Temperature of hydrogen is constant.
After being created in a high-energy particle accelerator, a pimeson at rest has an average lifetime of 2.60*10-8 s. Traveling at a speed very close to thespeed of light, a pi meson travels a distance of 105 m before decaying. How fast is it moving..
Dan is gliding on his skateboard at 2m/s. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 7.00m/s (as measured by an observer on the ground). Dan's mass is 50 kg and the skateboard's mass is 5.00 kg.
The coil of a galvanometer has a resistance of 19.8 ?, and its meter deflects full scale when a current of 6.30 mA passes through it. What is the maximum current that this ammeter can read
A ray of light makes an angle of 25 degrees with the normal to a plane mirror. through what angle is the reflected ray rotated
consider an object of mass 0.1 kg oscilaating on a spring with an x- component of position given by x = (2m) cos ((5/s)t - pi/6), find the total energy of the mass/ spring system
An audio amplifier, represented by the AC source and the resistor R, delivers alternating voltages at audio frequencies to the speaker. what is the average power input into the speaker
A 55 g piece of aluminum at 21 °C is cooled to -196 °C by placing it in a large container of liquid nitrogen at that temperature. How much nitrogen is vaporized
Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do.
A ball of mass 0.45 kg is traveling with a velocity of 1.2 m/s north, 2.4 m/s east and 0.6 m/s up. What is the angular momentum of the ball with respect to the point at which the rope is attached to the post
A narrow beam containing red (660 nm) and blue (470 nm) wavelengths travels from air through a 2.60 cm thick flat piece of crown glass, By what distance are the red and blue separated when they emerge
A gas with initial conditions (P,V,T)i expands isothermally until the final volume=8.192 times the initial volume, find the ratio of the final pressure to the intial pressure
A ball is thrown horizontally from the top of a 85 m building and lands 140 m from the base of the building. What is the vertical component of the velocity just before the ball hits the ground in m/s
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