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In New England, the horizontal component of the Earth's magnetic field has a magnitude of 2.9 × 10-5 T. An electron is shot vertically straight up from the ground with a speed of 1.8 × 106 m/s. What is the magnitude of the acceleration caused by the magnetic force? Ignore the gravitational force acting on the electron.
The leg and cast weigh 177N (w1). Find out the weight w2 and the angle α required so that no force is exerted on the hip joint by the leg plus cast.
A girl floats in a lake with 97 percent of her body beneath the water. Calculate her weight density
The aluminum cable of a high-voltage transmission line carries a current of 600 A. What is the power lost to Joule heating in this cable
A docking shuttle requires to decelerate at a very specific rate, given by a=bt2. If the shuttle is moving at 800m/s and begins at 30km away, how long will it take to dock?
Two cars drive on a straight highway. At time , car 1 passes mile marker 0 traveling due east with a speed of 17.0 . At the same time, At what time do the cars pass next to one another
Cloverleaf exits are approximately circular. A 740 kg automobile is traveling 60 mph while taking a cloverleaf exit that has aradius of 44.5 m. Calculate the centripetal acceleration of the car and the centripetal force on the car
a 1488-kg car is moving down a road with a slope grade of 21 while speeding up at a rate of 1.5 ms2. what is the
A man walks 8.0 miles EAST, then 5.0 miles SOUTH, then 3.0 miles WEST. Determine what is the resulting displacement
An airplane has a mass of 1.7x10^6kg and the air flows past the lower surface of the wings at 96 m/s. If the wings have a surface area of 1200m^2, how fast must the air flow over the upper surface of the wing if the plane is to stay in the air?
a square coil of wire containing a single turn is placed in a uniform 0.30 t magnetic field as the drawing shows. each
A submarine dives to a depth of 190 feet in the ocean. What is the force in pounds acting on a hatch that has a area of 3.7 square feet
Suppose that a high-energy particle accelerator accelerates an electron to such great speed that its relativistic mass becomes as large as the rest mass of a proton. Calculate the speed of this electron
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