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An electron moving at a speed of 2500 m/s in a plane that is perpendicular to a 0.0012-T magnetic field. What is the radius of the electron's circular path? The mass of an electron is 9.11 x 10-31kg. =_________ μm
A firehose 17 m long is uncoiled bypulling the nozzle end horizontally along a frictionless surface atthe steady speed of 2.4 m/s. How much work has been done on the hose bythe applied force
The coefficient of static friction between the mug and the roof is 0.9, and the coefficient of kinetic friction is 0.3. What is the maximum acceleration of the car, so the mug does not slide off?
A small insect viewed through a convex lens is 1.5 cm from the lens and appears three times its actual size. What is the focal length of the lens?
A 250 N force is applied at a37° angle to the surface of theend of a square bar. The surface is 4.00 cm on a side. What is the shear stress on the bar
a 4-omega and 6-omega resistor are connected in series to a battery with V=12V. Calculate the power dissipated in the 6-omega resistor
A sprinter running the 100 m dash has a constant acceleration of 2.8 m/s2 for the first 4.2 seconds of the race, when he reaches his top speed, and then continues to run at that speed for the rest of the race.
1.9*10^20photons per second are emitted by a 70W lightbulb, the wavelength is 550nm. How many photons per second are entering the pupil
growing rectangles suppose we are growing rectangles - specifically rectangles in which one side is 1 unit longer than
An iron bar of mass, 0.81 kg, slides down a frictionless incline 0.39 m high. At the bottom of the incline it collides and sticks to a magnet of mass, 0.87 kg. What is the speed of the combined masses after collision.
A uniform 1.4 kilogram rod that is 0.75 meter long is suspended at rest from the ceiling by two springs, one at each end of the rod. Estimate the angle that the rod makes with the horizontal
an electron is projected at an angle of 30 degrees above the horizontal at a speed of 8.20x105 ms in a region where the
You suspect you are anemic and your physician orders some tests. He finds that your hemoglobin is 13%g. The molecular weight of hemoglobin is 66,500 gmol-1. What is the concentration of hemoglobin in molar in your blood
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