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a) A 10 kg (fat) gopher is lifted to a height of 100 m (using a rope). What is the work done in raising the rodent upward against gravity?
b) Once the rodent is released by cutting the rope, what will the kinetic energy of the rodent be the moment before it splatters all over the ground?
c) What will the speed of the rodent be when it hits the ground?
A 3.00-g bullet traveling horizontally at 413 m/s hits a 28.0-g wooden block, compute The speed of the block after the collision
The tires on a new compact car have a diameter of 2.0 feet and are warranted for 58,000 miles. Compute the angle through which one of these tires will rotate during the warranty period
A transformer steps up the 120 V rms AC power line voltage to 23 kV rms for a TV picture tube. what is the secondary current
A person drives a car along a curve on a flat (horizontal) road. Being adventurous he drove at different speeds and found that his car slipped when the speed was 40 miles per hour. The radius of the bend is 80 m. Calculate the coefficient of frict..
A diver beneath the surface of water in a lake looks up at 27 degrees from the vertical to see a life ring floating on the surface. How far is the base of the smokestack from the life ring
The difference in piezometric pressure, pz,A – pz,B. Express both answers in kPa and pressure differences pA - pB.
You want to use a lever to lift a dumpster that weighs 5200 N. You arrange the lever so that it is approximately horizontal and makes contact below the dumpster's center of mass at a distance of 0.40 m from the lever's pivot. About how much torque..
A 2.30 kg mess kit sliding on a frictionless surface explodes into two 1.15 kg parts: 2.32 m/s, due north, and 5.90 m/s, What is the original speed of the mess kit
What is the wavelength of the waves emitted by source? What is the difference in frequency between the directly radiated waves and the waves reflected from a whale traveling straight toward the ship at 4.95 ? Assume that the ship is at rest in the..
In a Young's double-slit experiment, 633-nm laser light illuminates two slits separated by a distance of 3.64 x 10-5 m. Find the angle at which the first order maximum occurs.
A particular Bohr orbit in a hydrogen atom has a total energy of -0.54eV. What is the electric potential energy of the system
Determine the distance to Proxima Centauri in light-years, if it is 1.3 pc away. Do not include the unit.
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