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An electron and proton move in circular orbits in a plane perpendicular to a uniform magnetic field B. The mass of electron and proton are 9.1 x 10 -31 kg and 1.673 x 10 ^-27 kg respectively. Find the ratio of the radius of electron to the proton.
a. When the momentum of the electron is twice of the proton.
b. When the kinetic energy of the electron is four times of the proton.
An ice chest at a beach party contains 12 cans of soda at 3.93 °C. Each can of soda has a mass of 0.35 kg, determine the final temperature T of the soda and watermelon in degrees Celsius
The nuclear reaction that powers the sun is the fusion of four protons into a helium nucleus. How much energy is released in each fusion
Charges of -11.5 nC and -22.1 nC are separated by 0.733 m. What is the potential midway between the two charges?
Angular acceleration and angular displacement of the rotor using the equation of motion in rotational dynamics.
A student has a stretched string on density u and length L under a tesnion F. A standing wave of frequency f = 4/4 squareroot, Calculate the length of the string
A stone is thrown upward with an initial velocity of 6 m/s. What maximum height will the stone reach?
Assume it takes 8.00 min to fill a 25.0-gal gasoline tank. (1 U.S. gal = 231 in.3) (a) Calculate the rate at which the tank is filled in gallons per second. (Please provide numerical answer in gal/s)
A nonreflective coating (n = 1.35) covers the glass (n = 1.52) of a camera lens. determine the minimum nonzero thickness that the coating can have
Determine the simple harmonic motion of the spring what ac velocity is ball moving
The wind blows with a force of 425N north on a sail boat, while the water exerts a force of 325N west on the sailboat. Find out the magnitude and direction of the net external force on the sailboat.
What is the work completed by the force of gravity.
What is the final speed of the crate after being pulled. On a very muddy football field, a 100 linebacker tackles an 80 halfback. Immediately before the collision, linebacker is slipping with a velocity of 8.5 north and the halfback is sliding with..
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