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A 61.0 kg bungee jumper, tied to a 37.0 m long cord, leaps off a bridge whose deck is 67.0 m above the water. He falls to 8.0 m above the water before the bungee cord pulls him back up. What is the magnitude of the impulse exerted on the bungee jumper while the cord stretches?
A viscous liquid is flowing steadily through a pipe of diameter D. Suppose you replace it by 7 parallel pipes, what is the total rate of flow in the 7 pipes compared to the original flow rate
a crane is lifting a 500 kg payload straight up at a constant speed of 0.7 m/s. What is the power output of the crane
A vertical force F is applied to a block of mass m that lies on a floor. what happens to the magnitude of normal force on the block from the floor as magnitude F is increased from zero if force F is downward?
The pulley of an Atwood Machine has a radius of 0.150 m and a moment of inertia of 0.687 kg m^2. Mass 1 is equal to 19.9 kg and Mass 2 is equal to 15.0 kg. What is the acceleration of Mass 2 and what is the angular acceleration of the pully?
An ideal heat engine with a Carnot efficiency of 38.9 % takes in heat from a high-temperature reservoir at 155oC. What is the Celsius temperature of the low-temperature reservoir?
A conducting spherical shell of radius Ri has a net charge Q on it. Using Gauss's law, find the electric field between the two shells
You are standing on the edge of a turntable with frictionless bearings. It is initially rotating when you catch a ball, which ismoving in the same direction but faster than you are moving and ona line tangent to the edge of the turntable. Assume y..
a plastic rod has been bent into a circle of radius r 6.30 cm. it has a charge q1 5.00 pc uniformly distributed along
A police officer in hot pursuit drives her car through a circular turn of radius 320 meter with a constant speed of 74.5 km/h. Determine what is the angle (relative to vertical) of the net force
The distance between the first and fifth minimum on a screen 60 cm behind the slits is 6.0 mm. What is the wavelength of the light used in this experiment.
Two astronauts, initially at rest in space, push on each other. what average force does each astronaut exert on the other
Megan is sitting (at rest) at the top of a slide that is inclined 25o with respect to the horizontal. how much does the thermal energy of the system increase during Megan's trip down the slide
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