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A person is holding a 50 kg block stationary on a frictionless incline by pulling on a rope. Assuming the incline has a slope has a slope of 30? and the rope is at an angle of 10? below the angle of the incline, determine the magnitude of the normal force, FN , and the magnitude of force from the rope, Fr.
Two long parallel transmission lines 35.0cm apart carry 23.5A and 77.5A currents, Find all location where the net magnetic field of the two wires is zero if these currents are in the same direction
A chunk of 22 gram ice is pulled from a freezer keeping temperature -25 deg. Celsius, and placed in an identical calorimeter as the one described in problem 1. What is the experimental latent heat of fusion of ice
An arbitrary mass of 0.200 kg is connected to a light spring with force constant 5 N/m and is free to oscillate on a horizontal, frictionless surface. What is the maximum speed of the mass
A galaxy cluster in Ursa Major has a recessional velocity of 15,000 km/s. Using 73 km/s/Mpc for Hubble's constant, find the distance to the galaxy cluster.
a unit cell of diamond is a cube of side a with carbon atoms at each corner at the center of each face and in addition
a pipe is horizontal and carries oil that has a viscosity of 0.14 pa s. the volume flow rate of the oil is 5.6 times
If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, throughout how various revolutions will the rotor turn before coming to rest.
Starting from rest at time t=0 a car moves in a straight line with an acceleration plotted on an accleration vs time graph. What is the speed of the car at t=3 s? Please show work.
The Golden Gate Bridge in San Francisco has a main span of length 1.28 km, one of the longest in the world. At what temperature would the wire reach its elastic limit
A negative muon traveling at 32.0 percent the speed of light collides head on with a positive muon traveling at 48.6 percent the speed of light. The two muons (each of mass 105.7MeV/c2) annihilate, and produce electromagnetic energy of what total a..
A copper wire is 5-m-long. Its cross-section is circular with a diameter of 1millimeter. If it is stretched to 10 meter long keeping a circular cross-section, then compute what is the new resistance
A helicopter lifts a 70 kg astronaut 16 m vertically from the ocean by means of a cable. The acceleration of the astronaut is g/10. How much work is done on the astronaut by her weight? What is the speed of the astronaut just before she reaches the ..
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