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A proton moving at 3.000 * 10^4 m/s is projected at an angle of30.00 degrees above a horizontal plane. If an electric fieldof 400.0 N/C is directed downwards, how long does it take the proton to return to the horizontal plane. Ignore the effectsof gravity.
A 7.05 bullet traveling at 520 m/s embeds itself in a 1.85kg wooden block at rest on a frictionless surface. Find the amplitude of the subsequent simple harmonic motion
A gyroscope is precessing about a vertical axis. Describe what happens to the precession angular speed if the angular speed of the spinning flywheel is doubled. (All other variables remaining the same.)
If the magnetic field in a traveling EM wave has a peak magnitude of 13.3nT, what is the peak magnitude of the electric field
A block is launched with initial speed 2.1 up a 30 degree frictionless ramp. How far up the ramp does it slide
A pulley is 1.8 meters away from the wall. A 4 meter string that has a mass of 25 grams has one end attached to the wall and the other end hung over the pulley. What is the mass of the iron
A fiber optic line is composed of a core with an index of refraction of 1.47 and cladding with an index of 1.31. Which one of the following relations best describes angles of incidence ? that will result in total internal reflection within the fib..
Only two forces act on an object (mass = 4.60 kg). (F = 68.0 N.) Determine the magnitude and direction (relative to the x axis) of the acceleration of the object.
How many revolutions does the ball make during its fall. Now assume that the ramp is frictionless, so that the ball slides instead of rolling. Through what horizontal distance d does the ball move before landing in this case.
If an inductor carrying a 1.40 A current stores an energy of 0.250 mJ, How much energy does the same inductor store if it carries a 2.9 A current
A blue car with mass mc = 459.0 kg is moving east with a speed of vc = 19.0 m/s and collides with a purple truck with mass mt = 1245.0 kg that is moving south with a speed of vt = 10.0 m/s. What is the speed of the car-truck combination immediately..
A source emits sound uniformly in all directions. A radialline is drawn from this source. On this line, determine the radial positions of two points, 1.28 m apart, such that the intensity level at one point is 2.46 dB greater than that at the other.
q1. two balls of masses 43kg and 65kg are suspended. the lighter ball is pulled away to a 66 angle with the vertical
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