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An electron is accelerated from rest by a potential difference V. It then enters a uniform magnetic field of magnitude B with its velocity perpendicular to the field.
(a) Calculate the speed of the electron and
(b) Find the radius of its path in the magnetic field. State your answers in terms of the given variables, using me for the mass of an electron and e for the elementary charge when needed.
A satellite moves around the Earth in a circular orbit of radiusr. (Use G for the universal gravitation constant,M for the mass of the Earth, and r, asappropriate, when answering parts (a), (b), and (c) below.)
A spring is compressed by 0.0541 m and is used to launch an object horizontally with a speed of 2.80 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?
The position of a 9x10-31kg particle is given by: x(t)=3t2x+4ty where x and y are unit vectors. What is the force acting on the particle
A small spherical lump of conductor, with a radius R = 0.1m, has a charge of 0.01 C placed on it. Compute the electrostatic potential energy of the system
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a 500g cart moving to the right with a speed of 30cms collides with a stationary 1500g cart. immediately after the
A 9.60 kg object oscillates at the end of a vertical spring that has a spring constant of 2.00 104 N/m. Calculate the frequency of the dampened oscillation
The electricity received at an electric substation has a potential difference of 2.80 10^5V. If the requires output is 440V, what must be the ratio of the turns of the step-down transformation.
Calculate the magnitude of the electric field at one corner of asquare 0.8 m on a side if the other three corners are occupied by3.2x10-6 C charges
An electron and a positron have masses of 9.11 10-31 kg. They collide and both vanish, with only electromagnetic radiation appearing after the collision. determine the energy of the electromagnetic radiation
Sam, whose mass is 71kg , takes off across level snow on his jet-powered skis. What is Sam's top speed
A thin layer of magnesium fluoride (n = 1.38) is used to coat a flint-glass lens (n = 1.61). What atleast thickness should the magnesium fluoride film have if the reflection of 669 nm light is to be suppressed? suppose that the light is incident a..
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