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A molecule of a mass m and velocity v strikes a wall and is reflected maintaing the same speed. The intitial and final velocities make an angel of 60 degrees with the normal (the perpendicular to the wall). What is the magnitude of the impulse imparted by the wall to the molecule?
A 0.9 inch tall clock is 29 cm in front of a diverging lens which has a focal length of -30 cm, Determine the image distance and height
A rigid tank contains 1.30 moles of an ideal gas. Determine the number of moles of gas that should be withdrawn from the tank to lower the pressure of the gas from 24.5 atm to 4.40 atm. Assume volume of the tank and the temperature of the gas rema..
Looking out the window of a train you observe the passengers on a second train moving in the opposite direction at a constant velocity. determines which of the two trains is actually moving
Calculate the buoyant force of water on a completely submerged sample volume of 3.4 meter^3.
A playground merry-go-round has a radius of 4.60 {rm m} and a moment of inertia of 250 kg m^2 and turns with negligible friction about the vertical axle through its center.
Suppose one gallon of gasoline produces 1.1 × 108 J of energy, and this energy is sufficient to operate a car for twenty miles. how many miles could the car go with that energy
The movement of the water because of the tides will give kinetic energy to the turbine blades, causing them to spin. In the calculations that follow ignore any frictional drag because of the seawater.
A proton moves with a speed of 2.4 106 m/s horizontally, at the right angle to a magnetic field. What magnetic field strength is required to just balance the weight of the proton and keep it moving horizontally.
After the skier on the hill had been moving for 5.0 s, friction of the snow suddenly increasedmaking the net force on the skier zero. what is new coefficient of friction? how fast would the skier now be going after skiing for 5.0s.
Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He), What is the temperature of the neon
Determine magnitude of the force from the ground on each front wheel. what is magnitude of the duck's velocity.
Suppose 28.5 kg of 87.5°C water is placed in contact with 28.5 kg of 11°C water. What is the change in heat (in J) of the hot water
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