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A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 9.72 m/s at an angle of 57.6 ° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed is zero. What is the vertical height between the two climbers?
Suppose that 0.10mol of argon gas is admitted to an evacuated 50cm3 container at 20° C. The gas then undergoes isobaric heating to the temperature of 300°C. What is the final pressure of gas? What is the final volume.
A football is kicked straight up into the air; it hits the ground 3.8s s later, What was the greatest height reached by the ball, Assume it is kicked from ground level
A flat, uniform, circular disk (R = 2.25 m, m = 84.0 kg) is initially at rest, but it is free to rotate in the horizontal plane about a vertical, Find the resulting angular velocity of the disk
A 8760-kg car is travelling at 27.8 m/s when the driver decides to exit the freeway by going up a ramp. What is the magnitude of the average drag force exerted on the car
A 18.0 kg loudspeaker is suspended 2.40m below the ceiling by two 4.10m long cables that angle outward at equal angles. What is the tension of each of the cables.
Neil A. Armstrong was the first person to walk on the moon. The distance between the earth and the moon is 3.85 ? 108 m. Find the time it took for his voice to reach earth via radio waves
A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 14rpm in 12.0s. What force is required at the edge
When the displacement of a mass on a spring is 0.445 of the amplitude of its oscillation, what fraction of the mass's energy is kinetic energy
A torque of 2.2 N.m is applied to a spherical shell of radius 0.25 m. what is the mass of the disk
An object has a kinetic energy of 237 J and a momentum of magnitude 29.3 kg·m/s. Find the speed and the mass of the object
Water is moving at a velocity of 1.50 m/s through a hose with an internal diameter of 1.60 cm. What is the flow rate in liters per second
A ladder is leaning against a vertical wall. The coefficient of friction between the ladder and the horizontal surface is u1=1.265, Determine the maximum angle with the vertical the ladder can make
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