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A 200-lb block is on a horizontal plane. Find the magnitude of the force P required to give the block a horizontal acceleration of 10 ft/s2. The coefficient of kinetic friction µk = 0.25.
A 280 block on a 58 long string swings in a circle on a horizontal, frictionless table at 90.0 . What is the speed of the block.
A turbine blade rotates with angular velocity w(t)= 2.00 rad/s - 2.100 rad/s^3 t^2. What is the angular acceleration of the blade at t = 9.1 s
A car of mass m is initially moving with a velocity v. Find the time that it takes for the car to come to rest
If the charge is 23 mu/C, the velocity is 1500 m/s, find the force (magnitude and direction) on the charge.
A 12.4- Ω resistor, a 14.9-µF capacitor, and a 15.0-mH inductor are connected in series with a 194-V generator. What is the maximum value of the rms current
A sample containing beryllium (atomic mass 9 u), aluminum (27 u), and an unknown element is placed in a mass spectrometer, What is the mass of the unknown element
Potential energy of a not obeing Hooke's law spring is given by the equation U(x)=5.00(J/m)x - 2.00(J/m3)x3, What is the expression for the restoring force of the spring
A musician plays a string on a guitar that has a fundamental frequency of 330.0 Hz. The string is 64.2 cm long and has a mass of 0.316 g. At what speed do the waves travel on the string
A 3.04 μF capacitor and a 7.84 μF capacitor are connected in series across a 17.0 V battery. What voltage would be required to charge a parallel combination of the same two capacitors to the same total energy?
A cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. What is the maximum acceleration that the plane can have
a uniform electric field exists in a region between two oppositely charged plates. an electron is released from rest at
question1a ball of mass 10 kg and a ball of mass 1000 kg are ?oating in empty space connected by a spring of negligible
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