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An electron moving at right angles to a 0.42 T magnetic field experiences an acceleration of 7.5 x 1015 m/s2.
(a) Find what is the electron speed? m/s
(b) Find by how much does its speed change in 1 ns(10-9 second)?
m/s
A 547-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius. Find the gravitational force acting on it
A proton is introduced at rest at a distance of 2 x 10^-14 from a bare nucleus of uranium, What is its kinetic energy in eV when it is expelled to infinity
A room measures 3.0 m by 4.5 m by 6.0 m. If the heating and air-conditioning ducts to and from the room are circular with diameter of 0.30 m, WHat is the necessary flow speed in the duct
Your task is to design a boiler to produced saturated steam at 300 °C. Because energy costs money, you decide to use "waste" hot water streams already in the plant to feed the boiler. What is the steam velocity coming out of the boiler
A grade school student plans to build a 34-power telescope as a science fair project. What focal length is needed for her objective lens
the magnetic component of an electromagnetic wave in vacuum has an amplitude of 84.6 nt and an angular wave number of
Light enters a container of benzene at an angle of43^\circ to thenormal; the refracted beam makes an angle of 27^\circ withthe normal. Calculate the index of refraction of benzene.
It is know that a certain hydrogen atom has a definite value of l. What does this statement tell you about the angularmomentum. What are the allowed energies of consistent with this information?
A uniform solid sphere of mass 1.5 kg and diameter 30.0 cm starts from rest, What is the speed of the center of mass of the sphere when it reaches the bottom of the incline
a longitudinal standing wave is established in a tube open at one end only. in air the fundamental frequency is 110 hz.
Water is circulating through a closed system of pipes in atwo-floor apartment. On the first floor, the water has a gaugepressure of 3.4*105 Pa and a speed of 2.1 m/s. However, on the second floor, which is 4.0m higher, the speed ofthe water is 3.7 ..
Plot B lamda for this temp, using linear axes. Either graphically or numerically, estimate the fraction of the total emission from an incandescent light bulb that falls within the visible portion of the spectrum
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