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The drawing shows an equilateral triangle, each side of whichhas a length of 4.74 cm. Point charges are fixed to each corner, asshown. The 4.00 C charge experiences a net force due to the chargesqA and qB. This net forcepoints vertically downward and has a magnitude of 719 N. Determine the magnitude and algebraic sign of the two charges.
A satellite has a mass of 99 kg and is located at 2.01 106 m above the surface of Earth. obtain the magnitude of the gravitational force on the satellite
The position of a particle moving with constant acceleration is given by x(t) = 6t2 + 6t + 4, Calculate the average velocity of this particle between t = 6 seconds and t = 10 seconds
A heat engine with an efficiency of 35% performs 160j of work, how much heat is discharged to the lower temperature
A bicycle is moving to the right at a speed of Vo= 20 mph on a horizontal and straight road. The radius of thebicycle's wheels is R = 1.15 ft. Let P be a point on the peripheryof the front wheel.
An Automobile engine slows down from 4500 rpm to 1200 rpm in 2.50 s. Calculate (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
A hypothetical 40cm long arm is assumed to be weightless. What is the maximum weight that can be held in the hand if the muscle is attached 1 cm from the below
A steady flow, steady state air compressor handles 4000. ft3/min measured at the intake state of 14.1 psia, 30.0°F and a velocity of 70.0 ft/s. The discharge is at 45.0 psia and has a velocity of 280. ft/s.
An incompressible fluid is flowing through a pipe with a constriction. The pipe is on an incline with an angle of 30.0 degrees. What is the pressure in the narrow section of the pipe
A 2.5kg mass is attached to a spring and placed on the horizontal, smooth surface. A horizontal force of 18.4 N is necessary to hold the mass at rest while it is pulled 0.210 m from its equilibrium position.
A series RCL circuit contains a 30-mH inductor, 1.20-?F capacitor, and 150-? resistor. The rms voltage of the generator is 40.0 V and the generator has a frequency of 500 Hz. Determine the rms current in the circuit.
questiona car travels all along a straight line at a constant speed of 48.5 mih for a distance d and then another
A pencil is held perpendicular to the optical axis of a concave spherical mirror. The pencil is 85 cm from the center of the mirror, What is the magnification of the pencil's image
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