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A sample of ideal gas occupies a volume of one litre at atmospheric pressure and temperature, 20 C. What pressure is required to squeeze the gas into one-half litre at 40 C?
Evaluate the stability of of Na in the NaCl structure
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
A piece of string 5.30 m long has a mass of 15.5 g. What must the tension in the string be to make the wavelength of a 128 Hz wave 120.0 cm.
what common temperature must the two pieces be heated.
A subway train has three cars, each weighing 1.20 x 10^5 N. The frictional force on each car is 103 N, and the first car, acting as an engine, exerts a horizontal force of 4.80 x 10^4 N on the rails.
find the magnitude of the initial acceleration. At what height above the surface of the earth does the balloon have a speed of 7.30 m/s.
Before throwing a 1.49 kg discus, an athlete rotates it along a circular path of radius 1.18 m. The maximum speed of the discus is 25.7 m/s.
A 0.280 kg ball is dropped from rest at a point 1.35m above the floor. The ball rebounds straight upward to a height of 0.780 m. What are the magnitude and direction of impulse of the net force applied to the ball during the collision with the flo..
When a charge that is free to move is released in the presence of an electric field, does it move from a region of high electric potential to a region of low electric potential or vice-versa? Does your reply depend on whether the charge is positiv..
Calculate the net work done on Gas
In coming to a stop, a car leaves skid marks 77m long on the highway. Assuming a deceleration of 8m/s2, estimate the speed of the car just before braking.
How long did it take the apple to hit Newton after falling off? Draw a graph of velocity vs
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