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A block of mass 5.0 kg slides 19 m from rest down an inclined plane making an angle of 22 o with the horizontal. If the block takes 10 s to slide down the plane, what is the retarding force due to friction?
An RLC circuit consists of a 863 ? resistor, a 49 µF capacitor, and a 265 mH inductor, connected in series with a 78.2 V, 96 Hz power supply. What is the phase angle between the current and the applied voltage? Answer between -180? and +180?
A car travels at a constant speed around a circular track whose radius is 2.6 km. compute the magnitude of the centripetal acceleration of the car
after walking across a dry carpet theres a potential difference of 5500 v between your hand and the doorknob. as you
question a tiny sphere with a charge of q 6.4 microc is attached to a spring. two other tiny charged spheres each with
At time 0 a grinding wheel has an angular velocity of 30. It has a constant angular acceleration of 35 until a circuit breaker trips at time = 2.20. From then on, wheel turns through an angle of 428 as it coasts to a stop at a constant angular dec..
The oxygen molecule (O2) contains two oxygen molecules, each with mass 2.7x10^-27 kg and a bond distance of 1.24x10^-10 m. Calculate the following: The moment of inertia for rotation about an axis perpendicular to the bond.
A cord is used to vertically lower an initially stationary block of mass M = 14 kg at a constant downward acceleration of g/7. find the work done by the cord's force on the block
Miners are trapped at the bottom of a 500m deep shaft. You are located 50m away from the top of the shaft, At what angle down from the horizontal should you drill
Red light of wavelength 666.0 nm produces photoelectrons from a certain photoemissive material. What is the material's work function
A 1260 kg is pulling a 335 kg trailer. Together the car and trailer have the acceleration of 2.15 m/s squared. Find out the net force on the car-trailer combination.
A baseball (m=140 g) traveling 35 m/s moves a fielder's glove backward 25 cm when the ball is caught. evaluate the average force exerted by the ball on the glove
some asteroid is a whoping 2 x106km from planet earth. it moves at speed of 10 kms. without gravitation pull this
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