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An electron with kinetic energy 4.90 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 10.0 cm. Find the following values.
(a) the speed of the electron(b) the magnetic field(c) the frequency of circling(d) the period of the motion
you are on a plane that leaves DIA and flies 170 km at 68 east of north and then changes direction to fly 230 km at 48 south of east, after which it makes an emergency landing in a pasture next to a large herd of buffalo.
Illustrate what minimum speed will allow the ball to clear the roof?at what angle should the ball be tossed. (in picture at roof starts at 3m and the angle of the roof there is 45degrees
Two capacitors are connected parallel to each other. Let C1 = 3.50 ?F, C2 = 5.50 ?F be their capacitances, Calculate the potential difference across each capacitor: V1 = and V2 =
A sprinter accelerates from rest to a top speed with an acceleration whose magnitude is 3.53 m/s2. how far does he run during the acceleration phase
The particles in the nucleus of an atom are approximately 1.00×10?15 apart, while the electrons in an atom are about 1.00×10?10 from the nucleus. How many pounds would the force be
A race car starts from rest on a circular track of radius 490 m. The car's speed increases at the constant rate of 0.740m/s2. find the speed of the race car
A nucleus moving at 0.6c through the lab decys, emitting a photon in the forward direction. With what speed does the photon travel
a point charge has a charge of -7.00 micro c. estimate the strength and direction of the electric field at a distance
A massless spring hangs from the ceiling with a small object attached to its lower end. How far below yi is the new equilibrium (rest) position with both objects attached to the spring
two objects are identical and small enough that their sizes can be ignored relative to the distance between them which
Water flowing through a hose at 4 m/s fills a 900L child's pool in 8 min, What is the diameter in cm of the hose
A pencil (mass 5.8g and length 8.3cm) is at first balanced so that it is sitting vertically on a flat table. If the pencil then falls, find its angular velocity just before it strikes the tabletop. Assume that the mass of the pencil is distributed un..
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