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A moving electric charge is subject to a magnetic force in the presence of a magnetic field. Define how do you determine the direction of the magnetic force? Explain what happens to a current-carrying wire in a magnetic field?
Two parallel slits are illuminated with light composed of two wavelengths, one of which is 645 nm. On a viewing screen, the light whose wavelength is known produces its third dark fringe at the same place where the light whose wavelength is unknown p..
a car travels 20km at 15degrees north of west then turns and goes 30km at 10degrees east of south . find the carss
Fish are hung on a spring scale to decide their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale? What is the mass of a fish that stretches the spring 5.50 cm?
A pendulum bob passes through the lowest part of its path at speed of 2 m/s. What is the tension in the pendulum cable at this point if the pendulum is 80 cm long
A laser beam (λ = 632.8 nm) is incident on twoslits 0.220 mm apart. How far apart are the bright interference fringes on a screen 5 m awayfrom the double slits?
Suppose you have two ice cube trays.One is filled with hot water and the other with cold water. Which tray will produce ice cubes first
A 5.0 ice cube at -20 is in a rigid, sealed container from which all the air has been evacuated. How much heat is required to change this ice cube into steam
A space craft is designed to be rotating column, in order to simulate artifical gravity. find angular frequency must be maintained to simulate surface gravity
The speed of a bicyclist that is riding in the direction of the wind is 7.6 km/h relative to the wind. what is the speed of the bicyclist
Two converging lenses are separated by 23.00 cm. The focal length of each lens is 14.00 cm. An object is placed 39.00 cm to the left of the lens that is on the left. Decide the final image distance relative to the lens on the right.
q1. a hotel elevator ascends 170 m with a maximum speed of 5.9 ms. its acceleration and deceleration both have the
An electron and a proton, starting from rest, are accelerated through an electric potential difference of the same magnitude. In the process, Find the ratio ve/vp
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