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An electron in a vaccuum is first accelerated by a voltage of 10,000 volts and then enters a region in which there is a uniform magnetic field of 0.6T at right angles to the direction of the electron's motion.
a) What is the force of the electron due to the magnetic field?
b) What will be the speed of the electron after is has been in the magnetic field for 10 seconds? Why?
How much heat is required to raise the temperature of 0.265kg of water from 20.4 degrees C to 31.8 degrees C
Donovan Bailey set a world record for the 100-m dash on July 27, 1996. find the time that was recorded on Earth
Compute the linear momentum and angular momentum of a Frisbee of mass 0.144 kg if it has a linear speed of 1.75 m/s and an angular velocity of 64.0 rad/s
An X-ray photon with a wavelength of 0.250nm nm scatters from a free electron at rest. Find the initial momentum of the photon
A laser pulse has an energy of 16 J and a beam radius of 2 mm. The pulse duration is 11 ns and the energy density is constant within the pulse. What is the spatial length of the pulse
A charge of -330e is uniformly spread through thevolume of a sphere of radius 1.95 cm. What is the volume charge density in that sphere
Two lenses, one converging with focal length 21.0cm and one diverging with focal length ? 10.0cm , are placed 25.0?cm apart. Find the final image distance from second lens
A mercury manometer is connected to a container of gas. if the gauge pressure of the gas doubles, what are the new heights of the two columns
A charge Q is located inside a rectangular box. The electric flux through each of the six surfaces of the box is, What is Q
A helicopter is ascending vertically with a speed of 5.30{rm m/s}. At a height of 120 {rm m} above the Earth, package is dropped from a window.
Illustrate what is the coefficient of static friction between the chair and the floor? What is the coefficient of kinetic friction between the chair and the floor?
A compound microscope has an objective lens of focal length 10.50 with an eyepiece of focal length 14.80, and it produces its final image at infinity. The object to be viewed is placed 2.00 beyond the focal point of objective lens.
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