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At table tennis ball has a positive charge of 4.50 × 10-8 coulombs. It experiences a force of 2.72 × 10-3 N due to an electric field. Compute what the strength of the electric field?
The rest energy of an electron is 0.511 MeV. The rest energy of a proton is 938 MeV. Assume both particles have kinetic energies of 1.70 MeV. By how much does the speed of the electron exceed that of the proton
A beam of laser light of wavelength 632.8 nm has a circular cross-section 2.00 mm in diameter. Find the required width and height of the aperture
water undergoes viscous flow through two pipes with the same pressure difference between the ends. pipe 1 has three
A spherical balloon is partially blown up and its surface area is measured. More air is then added, increasing the volume of the balloon. If the surface area of the balloon expands by a factor of 6.7 during this procedure, by what factor does the ..
A satellite moves in a circular orbit around Earth at a speed of 5449 m/s. Decide the satellite's altitude above the surface of Earth. Decide the period of the satellite's orbit.
a piece of thin spherical shell that has a radius of curvature of 94 cm is silvered on both sides. the concave side of
A proton moves from a location where V =69 V to a spot whereV = -51 V. What is the change in the proton's kinetic energy?
a a dye molecule has emission cross section cm2 at nm and fluorescence lifetime 3 ns. assuming the transition is
cirrus sr20 cruises at 155 kts at 8000 ft geometricnbspaltitude. its wing has span b 38.333 ft sref 144.9nbspft2 amp
An object is placed 100 cm in front of a lens of focal length 20 cm. A second lens is placed 35 cm beyond the first, How far past the second lens is the final image formed
A 10-kg box is stationary on the ground and pushed by a downward force of 30 N. Calculate the supporting normal force acted on the box from the ground
In exercising, a weight lifter loses 0.123 kg of water through evaporation, find the change in the internal energy of the weight lifter
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