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A 2.00 meter long horizontal plank whose mass is 3.00 kg is placed so that the very end (the right end) rests on a retaining wall. The left end is put on the tailgate of the truck. However the tailgate is tilted a bit, so it only contacts the board at a point 25 cm from the end. Find the force acting on the board by the tailgate. Find the force acting on the board by the retaining wall.
An EM wave has a wave vector k=(x+2y)rad/m. The magnetic field amplitude is Bo=(1.43x10^-10T)(2x-y+z). Determine the electric field vector amplitude
A 350kg piano slides 3.7m down a 33^\circ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure(Figure 1) ). The effective coefficient of kinetic friction is 0.32.
A muon is a lepton that is a higher-mass (rest mass 105 MeV/c^2) sibling to the electron. By what fraction does the speed of the muon decrease
You push a 2.7 kg box with a force of 23.8 N along a level floor, but a frictional force of 3.3 N opposes the motion
A bicycle rides by in front of you moving right to left. What is the torque applied to the wheel
The physical therapist Is examining a rehab patient right knee in preparation for fitting them a knee brace. What is the name of the anatomical plane in which this flexion/extension motion occurs
An air traffic controller observes two aircraft on his radar screen. the first is at altitude 850m, horizontal distance 19.1 and 26.00 degree south of west. The second aircraft is at altitude 1000m, horizontal distance 17.8km and 25.0 degree south of..
Deriving the Hawking temperature T = (hbar)c^3/8(pi)kBGM rigorously from quantum field theory is beyond our scope. However, we can make its form plausible by the following considerations. Assume a particle– antiparticle pair having a rest mass m..
You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. What is the maximum horizontal range of your gun
A 12.3-kg monkey is hanging by one arm from a branch and swinging on a vertical circle. compute the magnitude of the tension in the monkey's arm
The system shown above is in equilibrium. The steel block has a mass m1 = 234 kg, What is the tension in the vertical wire that holds the steel block
Calculate the width of the dark area between the first and second
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