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An electron is accelerated from rest during a potential difference of 800 V. It then moves perpendicularly to a magnetic field of 30 G. Discover the radius of its orbit and its orbital frequency.
Four lawn sprinkler heads are fed by a 1.9 cm diameter pipe. The water comes out of the heads at an angle of 33° to the horizontal and covers a radius of 7.8m. What is the velocity of the water coming out of each sprinkler head? (Assume zero air resi..
You are lowering two boxes, one on the top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp.
question two thin slits are 0.050 mm apart. monochromatic light of wavelength 634 nm falls on the slits. if there is a
A person of mass 75 kg stands at the center of a rotatingmerry-go-round platform of radius 2.6 m and moment of inertia 1500 kg·m2. The platformrotates without friction with angular velocity 2.0 rad/s. The person walks radially to the edge of the p..
A 3.50-g bullet, traveling at 250 m/s, hits a hinged, light board at right angles, at a distance of 55.0 cm from its hinges, What is the angular speed of the board
An RCL circuit connected in series has R=180 ohms, C=1/280 farad, L=20 henries, and an applied voltage E(t)=10sin(t). find the subsequent charge on the capacitor
At what distance along the central axis of a ring of radius 1.8 cm and uniform charge 66 C is the magnitude of the electric field maximum.
A force of 315N is applied horizontally to a wooden crate in order to displace it 35m across a level floor at a constant velocity. Calculate the initial internal energy of the crate
Find the speed of an orbiter in a circular orbit that is just above the surface of a planet, given that the orbiter's acceleration is equal to the planet's gravitational acceleration of 2.36 m/s2
puck 1 of mass m1 = 0.30 kg is sent sliding across a frictionless lab bench, to undergo a one-dimensional elastic collision with stationary puck 2. What is the mass of puck 2
A person wants to push a lamp ( mass 7.2 ) across the floor, for which the coefficient of friction is 0.20. calculate the maximum height x above the floor at which the person can push the lamp so that it slides rather than tips.
A tank contains mercury, whose density is 13,600 kg/m^3. Find the force exerted by the mercury on a circular plug
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