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A solid, frictionless cylinder reel of mass M = 3.13 kg and radius R = 0.358 m is used to draw water from a well. A bucket of mass m = 1.92 kg is attached to a cord that is wrapped around the cylinder. (Indicate the direction with the sign of your answer.)
(a) Find the tension T in the cord and acceleration a of the bucket.
(b) If the bucket starts from rest at the top of the well and falls for 3.22 s before hitting the water, how far does it fall?
a 10 cubic meter particulate air sample collects 0.1 millicurie of cobalt-60 on its filter. what is the airborne
Two parallel slits are illuminated with light composed of two wavelengths, one of which is 645 nm. On a viewing screen, the light whose wavelength is recognized produces its third dark fringe at the same place where the light whose wavelength is unk..
The average distance of the planet Mercury from the sun is 0.39 times the average distance of the earth from the sun. How long is a year on Mercury in units of earth years
A 10.2 ohms resistor, a 10.2 µF capacitor, and a 30.3 mH inductor are connected in series with a 120 Volt (rms) source with variable frequency. Determine the maximum rms current
A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 2.0000 s. The temperature rises by 152° C, and the length of the wire increases. Determine the period of the heated pendulum.
A 13.0-g wad of sticky clay is hurled horizontally at a 90-g wooden block initially at rest on a horizontal surface. The clay sticks to the block. what was the speed of the clay immediately before impact
A simple model of a long DNA is a long tiny cylinderwith radius of 1 nm and dielectric constant of κ and linear charge density of λ. Find the electric field at distance r from DNA.
An electric motor is rated to have a maximum power output of 0.68 hp. how fast (i.e., at what speed) can it lift the crate
A conducting rod whose length is ? = 1.60 m is placed on frictionless U-shaped metal rails that is connected to a lightbulb having a resistance of 4.00, At what rate is energy dissipated in the lightbulb
A 1.8m -long, 600g rope pulls a 2.0kg block of ice across a horizontal, frictionless surface. The block accelerates at 4.0m/s2, How much force pulls forward on the block of ice
A box with mass 7.0 kg is sliding down a frictionless ramp that is 2.6 m long and inclined at 33 deg. above the horizontal. how long will it take to reach the bottom of the ramp
The reserve capacity (RC) of a car battery is defined as the number of minutes the battery can provide 25.0A of current at a potential difference of 10.5V.
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