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A hollow, spherical shell with mass 1.75 rolls without slipping down a slope angled at 39.0. Part A Find the acceleration. Take the free fall acceleration to be = 9.80 Part B Find the friction force. Take the free fall acceleration to be = 9.80 Part C Find the minimum coefficient of friction needed to prevent slipping.
A 28-turn circular coil of radius 4.20 cm and resistance 1.00 %u03A9 is placed in a magnetic field directed perpendicular to the plane of the coil. Calculate the induced emf in the coil at t = 5.80 s
A 2{rm kg} box rests on a plank that is inclined at an angle of 65 ^circ above the horizontal. The upper end of the box is attached to a spring with a force constant of 390 N/m.
Steam enters a turbine in a Rankine cycle power plant at 200 psia and 500 degrees F. Calculate the isentropic thermal efficiency if the condenser pressure is 14.7 psia
Select ALL the valid statements, i.e., B, AC, BCD. If an equation is dimensionally A) correct, the equation may be correct. B) incorrect, the equation may be correct. C) correct, the equation may be wrong. D) incorrect, the equation must be wrong...
A cylinder of a car's enginehas a volume of .725 L when the piston is at the bottom of the cylinder.When the piston is at the top of the cylinder it has a volume of 0.050 L.If the cylinder is filled with air at a pressure of 1 atm when the pistonis a..
How many drops of water are in all the oceans on earth? Assume that contains 25 drops of water. Remember that this is an order-of-magnitude problem, so you should expect that you will only find rough estimates for the numbers you require.
Carlos is pitching in the nal game of the season. The pitcher's mound is 18.4 meters from home plate, With what speed does the ball cross the plate
A microphone has an area of 3.0cm^2. It receives during a 6.00s time period a sound energy of 1.0x10-11J. what is the variation of pressure in the sound wave if the speed of sound is 343m/s
A 3000 flask is initially open while in a room containing air at 1 and 20 . The flask is then closed and immersed in a bath of boiling water. When the air in the flask has reached thermodynamic equilibrium, flask is opened and air is allowed to esc..
Determine the magnitude (in mN) and direction (relative to the negative x-axis in degrees) of the force acting on a particle with charge q3 = +11 nC placed at the origin.
sled is being pulled across a cement sidewalk at constant velocity. the coefficient of friction mu between the cement
q1. a 485 kg sailboat has an acceleration of 0.50 ms2 at an angle of 51deg north of east. find magnitude and direction
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