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An electron enters a region of space containing a uniform 0.0000199-T magnetic field. Its speed is 199 m/s and it enters perpendicularly to the field. As you know, the electron undergoes circular motion under these conditions. Find the radius of the electron's orbit, r, and the frequency of the motion, f.
r = ______________ m
f = _____________ Hz
A glider of mass 0.155kg is moving to the right on a frictionless, horizontal air track with a speed of 0.760m/s. Find the magnitude of the final velocity of the 0.155kg glider
Two point charges totaling 9.00 µC exert a repulsive force of 0.250 N on one another when separated by 0.537 m. What is the charge on each
A projectile is launched at an angle of 34^{\circ} above the horizontal. The projectile has a mass of 1.50 kg and is given an initial speed of 20.0 m/s. What is the initial kinetic energy of the projectile
Suppose you have a near-point distance of 16 cm. The angular resolution of the eye is determined by diffraction, What is the smallest object your bare eye can resolve
A shell is fired from a gun with a muzzle velocity of 35 m/s, at an angle of 60° with the horizontal. How far from the gun does the other fragment land
A man stands on the roof of a building of height 16.8m and throws a rock with a velocity of magnitude 31.8m/s, Calculate the magnitude of the velocity of the rock just before it strikes the ground
when light of a wavelength of 200 nm is incident on a surface, What is the work function of the surface
How much time is the stone in the air
If the electrons gain this energy by collision between hydrogen atoms in a high temperature gas, calculate the minimum temperature of the heated hydrogen gas
The index of refraction for red light in water is 1.331 and that for blue light is 1.340. what are the underwater angles of refraction for the blue and red components of the light
A proton moves at 1.0x10^7 m/s perpendicularly to a uniform magnetic field. Determine the magnitude and direction of the field
It takes 18 minutes to fill a 1.2 m3 horse trough. It is filled with water from a hose with diameter 2 cm. What is the flow rate of the water
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