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An electron traveling due south enters a region that contains both a magnetic field and an electric field. The electric field lines point due west. It is observed that the electron continues to travel in a straight line due south. In which direction must the magnetic field lines point?
a scanning electron microscope operating at an accelerating voltage of 10 kv accelerates electrons to 20 of the speed
A 2.0 kg particle moves along an x axis, being propelled by a variable force directed along that axis. Its position is given by x = 3.0 m + (4.0 m/s) t + ct2 - (2.0 m/s3) t3, with x in meters and t in seconds. The factor c is a constant. At t =3.0 s,..
The helicopter can produce a maximum downward air speed v = 24m/s in a slipstream of diameter D = 9 m. Knowing that the weight of the helicopter and crew is 15 kN and assuming air density ρ= 1.21 kg/m3 , determine the maximum load that helicopter ..
What are the vertical and horizontal components of the force of the wall on the beam at the hinge?
Working for a small gold mining company, you stumble across an abandoned mine shaft that, because of decaying wood shoring, looks too dangerous to explore in person. Estimate the depth of the shaft
A simple pendulum with a length of 2.43 m and a mass of 6.84 kg is given an initial speed of 1.76 m/s at its equilibrium position. Determine its maximum angular displacement
The two charges in the figure below are separated by a distance d = 3.00 cm. Find the electric potential difference between B and A. Find the electric potential at A. Find the electric potential at B.
A boy stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Obtain the total sound intensity that the boy hears
A 9kg mass is connected by a a string over a frictionless pulley to a 5kg block sliding on the table.The coefficient of friction is 0.2, find the tension in the string.
A vertical jet of water having a nozzle exit velocity of 15 ft/s with a diameter of 1 in. suspends a hollow hemisphere as indicated in Fig. P5.56. If the hemisphere is stationary at an elevation of 12 in., determine its weight.
Emilie's potter's wheel rotates with a constant 2.20rad/s2 angular acceleration. What was the angular velocity of the wheel at the beginning of the 3.30s interval
an electron experiences a magnetic force with a magnitude of 4.60times10?15 n when moving at an angle of 60.0 with
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