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You are to drive to an interview in another town, at a distance of 298 km on an expressway. The interview is at 11:10 A.M. You plan to drive at 100 km/h, so you leave at 8:00 A.M. to allow some extra time. You drive at that speed for the first 100 km, but then construction work forces you to slow to 38.0 km/h for 38.0 km. What would be the least speed needed for the rest of the trip to arrive in time for the interview?
Now assume the particle is a proton and that its initial velocity is 254.7 m/s to the right. If the magnitude of the magnetic field is 0.98 T
Find out the acceleration of the crate if the applied force is 380 , the mass of the crate is 32 and the coefficient of kinetic friction is 0.42.
A parallel-plate capacitor has a plate area of 1cm^1 and a plate separation of 2.5 mm. To obtain an electric field of 1.0*10^6N/m between the plates, the magnitude of the charge on each plate should be.
A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic, What are the speeds of the U.S. and the French subs
A 1.70 kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall.
Lasers are used extensively in eye surgery to remove unwanted "material" from the eye or reshape the eye's lens. What is the power during one of these pulses
Given an isothermal expansion of gas from 1.0 to 2.0 cubic meters in a piston-cylinder arrangement where pressure varies according to P= 1.2 atm -.062 atm/ m^3 V, How much work was done by the gas
A 14 g bullet travelling at 247 m/s is fired into a 0.459 kg wooden block anchored to a 100 N/m spring. How far is a spring compressed to the nearest thousandth of meter.
A point source of light is submerged 2.4 m below the surface of a lake and emits rays in all directions. What is the maximum radius that this circle could have
Three point charges are on the x-axis. The first is located at -4 meters asn has a charge of -6 coulombs. What is the net force on the charge at the origin
Calculate the positron and electron beam energy needed to create a Higgs boson (mass 125GeV) in the CMS system
A diver makes 0.50 revolutions on the way from a 9.9-m-high platform to the water. find the diver's average angular velocity during a dive
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