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A box-shaped wood stove has dimensions of 0.75 m x 1.2 m x 0.40 m an emissivity of 0.80, and a surface temperature of 200 degrees C. Calculate its rate of radiation into the surrounding space. (dont forget units!)
A horizontal 790-N merry-go-round of radius 1.20 m is started from rest by a constant horizontal force of 45 N, Find the kinetic energy of the merry-go-round after 5.0 s
A pendulum swinging in a circular arc under the influence of gravity, has both centripetal and tangential components of acceleration. Where is the centripetal acceleration a maximum
Given an isothermal expansion of gas from 1.0 to 2.0 cubic meters in a piston-cylinder arrangement where pressure varies according to P= 1.2 atm -.062 atm/ m^3 V, How much work was done by the gas
Find out the normal force exerted on the crate by the elevator.
The force of the wind on the sails of a sailboat is 300 N north. The water exerts a force of 210 N east. If the boat (including crew) has a mass of 310 kg, illustrate what are the magnitude and direction of its acceleration?
If you are given a velocity versus time graph, and v initial is given, how do you calculate instantaneous acceleration
Find the work function of the emitting surface and the wavelength of the second source. Determine the net work done on the piano.
A cylinder in a car engine takes Vi = 4.50 multiply.gif 10-2 m3 of air into the chamber at 30° C and at atmospheric pressure. What is the new temperature of the air
Three resistors, 27, 49, and 79 ?, are connected in series, and a 0.51-A current passes through them. What is the potential difference across the three resistors
Find out the magnitude of angular acceleration of the wheel
A sinusoidal voltage ?v = (85 V) sin (200t) is applied to a series RLC circuit with L = 40 mH, C = 145 ?F, and R = 30 ?. What is the impedance of the circuit
Two identical pucks are placed on a collision course on an air table as shown. After the collision puck A has a final velocity of 5 cm per second, Determine the initial speeds of both pucks
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