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A steel cable is to support an elevator whose total (loaded) mass is not to exceed 3100 kg. If the maximum acceleration of the elevator is 1.2 m/s2, calculate the diameter of cable required. Assume a safety factor of 8.0. (G P12.48)
You are traveling on an airplane, The velocity of the plane with respect to the air is 190 m/s due east, What is the speed of the plane with respect to the ground
find the period of this oscillation.
An oil drop carries one excess electron and weighs 9.6 x10-15 N. What electric field strength is required to suspend the drop so it is motionless.
What velocity would a proton need to circle Earth 1400 km above the magnetic equator, where Earth's magnetic field is directed horizontally north and has a magnitude of 4 x10-8 T .
A force vector has a magnitude of 590 newtons and points at an angle 44o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A straight filament 7.00 m in length that is uniformly charged has a total positive charge of 2.0 uC, calculate the electric field at the surface of the cylinder and the total electric flux through the cylinder
A 1.9-kilogram mud ball drops from rest at a height of 18 m. If the impact between the ball and the ground lasts 0.56s, Find the final velocity of the 4.90-kg ball if the collision is elastic
An object with a charge of 0.880 µC is placed at the center of a regular icosahedron with 20 equivalent surfaces. What is the electric flux through one surface of the icosahedron?
At which wavelengths (or energies) will you observe lines in infrared absorption (a phonon absorbs a photon) and raman scattering spectra? The temperature is 300 k. raman scattering is excited with a cw Argon laser at 514.5 nm.
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 15.4m above the ground, Use the work-energy theorem to find its maximum height
A 0.255 kg puck, initially at rest on a frictionless horizontal surface, is struck by a 0.200 kg puck that is initially moving along the x axis with a velocity of 2.06 m/s. After the collision, the 0.200 kg puck has the speed of 1.02 m/s at an ang..
An ice cube of mass ma and specific heat Ci is initially at temperature T1, where T1 is less than 273K. If L is the latent heat of fusion of water, and the specific heat of water is Cw, how much energy is needed to convert the ice cube to water at ..
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