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An electron enters a uniform magnet field having a flux density 200uT at a speed of 2x10 6 ms-1 perpendicular to the field. Determine the radius of its orbit, then find the required electric field strength, applied perpendicular to the magnetic field, if the electron is to be continue in a straight line on entering the combined fields, and sketch it?
Radar is used to scan for airplanes near an airport. If an airplane is 10 km from the airport, what is the round-trip travel time for the electromagnetic wave used by the radar system
A mass spectrometer has an adjustable magnetic field. When themagnetic field is 7.000e-2 T, a singly ionized hydrogen atom (a proton) will strike the detector at a particular location. Suppose a triply-ionized carbon 12 atom, whose mass is by defi..
An ocean thermal-energy power plant takes in warm surface water at a temperature of 26 degrees Celsius, What is the maximum possible efficiency of this power plant
A 20-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 35 N. Starting from rest, the sled attains a speed of 2.6 m/s in 9.1 m. Find the coefficient of kinetic friction between the runners of the sled and the sn..
Two large, parallel, conducting plates are 18 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 4.1x10-15 Nacts on an electron placed anywhere among the two plates.(Neglect fringing.)
A 0.075 kg arrow is fired horizontally. The bow string exerts an average force of 65N on the arrow over a distance of 0.90m with what speed does the arrow leave the bow? A 100kg crate is being pulled across a horizontal floor with a force P that make..
an electrically neutral morgan silver dollar is placed in a uniform electric field of magnitude e6.3e5 nc . the field
Since the period of a simple pendulum depends only on its length (and g), How long would that standard be, in meters
A golf club strikes a 0.045-kg golf ball in order to launch it from the tee. find With what speed does the ball leave the club
Suppose a hiker of weight W climbs a mountain of height H with an efficiency n on a cool day with temperature TA, How many food calories are required
Consider an airplane window (area 0.33 m2). If the pressure inside the plane is atmospheric pressure and the pressure outside is 21% of Patm, what is the force on the window
a block of mass 2.10 kg is pushed 2.24 m along a frictionless horizontal table by a constant 19.0 n force directed
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