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An electron traveling at 993 m/s enters a 1.5 T magnetic field. The angle between the velocity and the field is 90o. Find the radius of the resulting circular path.
the horizontal surface on which the block slides is frictionless. two forces of magnitude F=25 N. N are applied to the block of mass M=5.0kg, find the magnitude of the resulting acceleration of the block
A charged rod carrying a negative charge is brought near two conducting spheres that are in contact with each other but insulated from the ground. If the two spheres are then separated, what charge does B have, positive, negative or neutral?
A box weighing 300N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.2° below the horizontal. If the coefficient of kinetic friction between the box and the floor is 0.540, how long does it take to mov..
The lowest outdoor temperature ever recorded on Earth was %u2212128.6 %u25E6F, recorded at Vostok Station, Antarctica, in 1983. What is this temperature on the Kelvin scale
A sudden gust of wind gives the boat an acceleration a, What is the boat's direction 6.4s later when the gust subsides
Two infinite, straight lines of charges run parallel to each other at a distance of 10cm. Find the electric force an electron would experience if placed at the middle point between the lines
a spherical drop of water carrying a charge of 90pc has a potential of 270 v at its surface, what is the potential in the new drop
A typical coal-fired power plant burns 320 metric tons of coal every hour to generate 700 of electricity. What is the power plant's thermal efficiency
Fred (mass 63kg ) is running with the football at a speed of 5.8m/s when he is met head-on by Brutus (mass 130kg ), who is moving at 4.1m/s. How far do they slide
A lens has a focal length of 40 mm magnifier. An object viewed with the magnifier is 5.3 mm tall, What is the angular magnification of the magnifier
A gas is expanded from a volume of 1.0 L to 2.8 L at a constant pressure of 3.0 atm Find the net work done during the complete cycle
A standing wave is oscillating at 140 Hz on a string, as shown in the figure. What is the speed of traveling waves on this string
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