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An electron moves through a uniform electric field E = (2.50 i + 5.00 j) V/m and a uniform magnetic field B = (0.400 k) T. Determine the acceleration of the electron when it has a velocity v = 10.0 i m/s.
Calculate the period T and the tension in the string F as a function of the angle. Compute the moment of inertia of this system for an axis that passes through the combined center of mass and is perpendicular to the plane of the rings.
question1two charged pith balls are suspended on extremely light 102 strings. each has a mass 10g. in stability the
A net torque of 36N*m acts on a wheel rotating about a fixed axis for 6 s. During this time the angular speed of the wheel increases from 0 to 12 rad/s. What is the magnitude of the frictional torque
One of your friends pulls on a rope with 3 units of force and other pulls on a second rope with 5 units of force, How hard and what direction must you pull
A large truck collides head-on with a small car. The car is severely damaged as a result of the collision. According to Newton's third law, how do the forces acting between the truck and car compare during the collision?
A man drags a 75.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
A heat pump is essentially an air conditioner installed backward. It extracts energy from colder air outside and deposits it in a warmer room. Suppose that the ratio of the actual energy entering the room to the work done by the device's motor is ..
q1. a ball in flight is recorded and analyzed using digital video analysis software. the analysis produced the result
What is the least coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road.
A 115-V source of emf is attached to a heating element with is a coil of nichrome wire (r=100*10^-8) of cross section 1.20 mm^2. What must be the length of the wire
At a stop light, a truck of mass, mT = 1.10 x 10^4 kg, fails to hit its brakes until it has hit a car of mass,mC = 1.60 x 10^3 kg. Determine the velocity of the combined truck and car immediately after the collision
a moon probe falls to the moons surface from an orbital height of 16 km. what is the final velocity ms as it hits the
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