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At the Equator near Earth's surface, the magnetic ?eld is approximately 64.5 µT northward and the electric ?eld is about 51 N/C downward in fair weather. A electron travels with an instantaneous velocity of 1.13 × 10^6 m/s directed to the east in this environment. The acceleration of gravity is 9.8 m/s^2.
Find the magnitude of the gravitational force on the electron, find the magnitude of the electric force on the electron, and find the magnitude of the magnetic force on the electron.
A certain Carnot engine produces 200 J of work per cycle, what is the change in entropy of the hot reservoir per cycle
You are standing still and watching a spaceship fly past. How fast is the spaceship moving, relative to you
Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +3.7 m/s. Find the ratio m1/m2 of the masses of the particles
A solid bowling ball with a radius of 10.9 cm and a mass of 7.4 kg rolls along a bowling alley at a linear speed of 4.4 m/s. What is its translational kinetic energy
An elevator is moving upward at a constant speed of 2.50 m/s. A bolt in the elevator ceiling 3.00 mabove the elevator floor works loose and falls. How long does it take for the bolt to fall to the elevator floor
A railroad car of mass 2.58 104 kg is moving with a speed of 3.88 m/s. It collides and couples with three other coupled railroad cars, What is the speed of the four cars after the collision
Two radio antennas operating at 6.00 Mhz are separated by 120.0m along a North-South line. Find the directions on the compass in which no radiation is sent out
A 27.78 cm diameter cylinder that is 39.07 cm long containes 59.46 g of oxigen gas at 22°C. How many moles of oxigen are in the cylinder
A horizontal force of 822 N is needed to drag a crate across a horizontal floor with the constant speed. You drag the crate using a rope held at an angle of 34° (from the horizontal).
Water flows through a horizontal tube of diameter 2.9cm that is joined to a second horizontal tube of diameter 2.0cm . The pressure difference between the tubes is 7.6kPa
A 2kg box is released, from rest, at the top of a rough circular track of radius 10cm. calculate the work done by all resistive forces
Two forces act on a 100-kg block resting on the floor. The first force, pointing parallel to the floor, What is the magnitude of the net force on the block
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