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For gas storage, thick metal cylinders whith an internal volume of 25 litres are used; typical cylinders can safely maintain a pressure of 180 atm. At 25 degrees celcius, how many moles of gas can such a cylinder hold?
A 2 ton automobile moving with a speed of 60 mph collides with a 10 ton truck at an intersection. find the velocity of the two after the collision
A drone, flying 300m above ground, observes a man walking on a road in a cold night (0°C). how many photons/sec does it receive from the man and from a similar surface of road
An engine absorbs 3,450 J of heat energy each cycle and expels 1,240 J. how much work does it do in one cycle
A 3.10 kg steel ball strikes a wall with a speed of 10 m/s at an angle of 60 ° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.190 s, what is the average force exerted on the ball by th..
A 36.0 g bullet moving at 478 m/s strikes a 3.7 kg bag of flour that is on ice, at rest. The bullet passes during the bag, leaving at 255 m/s. How fast is the bag moving when the bullet exits.
A beam of electrons is accelerated from rest through a potential difference of 0.110kV and then passes through a thin slit, How wide is the slit
Suppose a soccer player kicks the ball from a distance 21.5 m toward the goal. Find the initial speed of the ball
One member of a pair of parallel conducting plates has potential 17 V. An electron is ejected from that plate at potential, What is the potential of the second plate
The "power cube" transformer for a portable CD player has an output of 4.5 V and 550 mA (both rms) when plugged into a 120 V/60 Hz outlet. What is the peak current in the primary coil
A roller-coaster car moves 198 ft horizontally and then rises 143 ft at an angle of 30° above the horizontal. It then travels 143 ft at an angle of 40° downward
A 2 kg gun imparts a speed of 500 m/s to a 25 g bullet. what average force is exerted on the shooter's shoulder
A solenoid is designed to prodcue a 2.78*10^-2 T magnetic field near its center. It has a radious of 1.4cm, What total length of wire is required to make this solenoid
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