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In order to estimate the properties of a uniform magnetic field, you shoot an alpha particle into the field. The alpha particle has an initial speed of 1.5 107 m/s. The initial trajectory, moving horizontally from left to right, is set so that it will enter the magnetic field directly in front of you. After entering the field, the alpha particle moves in a counterclockwise orbit with a diameter of 30.8 cm in a vertical plane. What does this tell us about the field? (Alpha particles carry q = +2e charge and the mass is m = 6.6 10-27 kg) Determine the magnitude of the particle?
A 10,000 kg railroad car is rolling at 2 m/s when a 400 kg load of gravel is suddenly dumped in. What is the railroad cars speed just after the gravel is dumped in.
Two equal positive charges of magnitude q1 = q2 = 6 nC are on the y axis at y1 = +3 cm and y2 = -3 cm. (a) What is the magnitude and direction of the electric field on the x axis at x = 6 cm? b) What is the force exerted on a third charge q0 = 4 n..
A 25 N force at 60° is required to set a crate into motion on a floor. What is the value of the static friction
Determine the coefficient of kinetic friction between the crate and surface.
Suppose a pion is moving at a speed of 0.986c, and an observer who is stationary in a laboratory measures the pion's lifetime to be2.7 × 10-8 s. What is the lifetime according to a hypothetical person who is riding along with the pion
A horizontal 797N merry-go-round is a solid disk of radius 1.53 m, started from rest by a steady horizontal force of 50.4 N applied tangentially to the edge of disk. Determine the kinetic energy of the disk after 3.06 s.
An airplane pilot sets a compass course due west and maintains an airspeed of 213km/h. Find the magnitude of the wind velocity
A particle with mass 2.30 g and charge +10.0 uC enters through a small hole in a metal plate with a speed of 8.50 m/s, How far will the particle travel, delta x, before it hits the plate
A ceiling fan with 82cm diameter blades is turning at 70rpm. Suppose the fan coasts to a stop 29s after being turned off. Illustrate what is the speed of the tip of a blade 10s after the fan is turned off?
A driver traveling at 59 km/h sees a chicken dash out onto the road and slams on the brakes. Accelerating at -7 m/s2, the car stops just in time 24.3 m down the road. What was the driver's reaction time (i.e., the time that elapsed before he engag..
If that angular acceleration is 1.8rad/s^2, illustrate what is the total momentum of inertia about the axis of you and the chair?
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the mass of the star
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