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An electron is moving through a region of space which possessesa uniform electric field and uniform magnetic field. The electricpoint in the positive x direction and has a magnitude of E = 2,500v/m. The magnetic field is pointing in the positive y direction andhas a magnitude of B = 0.035 T. The electron has a speed of v =6.2x 10 m/s in the negative z direction. What is the direction and magnitude of the acceleration of the electron?
a wheel is 35 kg has a radius 0.4 m and turns freely on a horizontal axis. the radius of gyration of the wheel is 0.3
A weightlifter works out at the gym each day. Part of her routine is to lie on her back and lift a 41kg barbell straight up from chest height to full arm extension, a distance of 0.45m.
a physics student swings a pail of water in a vertical circle 1.0 m in radius at a constant speed. if the water is not
Consider a 2.5 GHz `clock' signal on a circuit board that has the following properties: It is constant at +4.00 V for 0.0073 ns, What is its rms voltage?
What is the potential difference between the terminals of a battery that can impart 6.8×10?19 \rm J to each electron that moves between the terminals
An unstrained horizontal spring has a length of 0.33 m and a spring constant of 260 N/m. Determine the possible algebraic signs
a wire with a circular cross section and a resistance r is lengthened to 8.86 times its original length by pulling it
a cannonball of mass 8.11 kg is shot from a cannon at an angle of 34.21deg relative to the horizontal and with an
Given that the current, natural abundance of U-235 is .72 atom-percent, and neglecting U-234 content of uranium, how long ago was the abundance of U-235 equal to 4 atom-percent?
q1. one of the most powerful cranes in the world operates in switzerland. it can slowly raise a load of m 5000 tonnes
As a projectile moves in its path, is there any point along the path where the velocity and acceleration vectors are (a) perpendicular to each other? (b) Parallel to each other?
A car of mass 1050 kg is going around an unbanked curve of radius 20 m. what is the normal force of the road on the car
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