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An electron (q = -1.6E-19 C, m = 9.1E-31 kg) has an initialvelocity (t=0) of v = 1.6E5 m/s j + 2.4E5 m/s k and is moving in a magneticfield B = 0.5 T k.
a. What is the force on the electron from the magnetic fieldat t = 0?
b. What is the radius of motion of the electron?
c. After 5 seconds, how far will the electron progress downthe z-axis?
The drill pipe has an outer diameter of 75 mm, a wall thickness of 6 mm, and a weight of 0.8 kN/m. If it is subjected to a torque and axial load as shown.
On average, each American produces 20,000 kg of CO2 per year, mostly through the consumption of fossil fuel such as oil, coal, and natural gas. determine the length of each side of the cube
The centers of a 10kg lead ball and a 90g lead ball are separated by 8.0cm. What is the ratio of this gravitational force to the weight of the 90g ball
Two particles of equal mass m are at the vertices of the base of an equilateral triangle. What is the mass m' at the third vertex
A rotating cylinder about 16- {rm km} long and 6.8 -km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the similar acceleration because of gravity as on Eart..
A car and driver have a combined mass of 100 kg. What is the force of the hill on the car as it passes over the top
An object has a kinetic energy of 267 J and a momentum of magnitude 21.7 kg•m/s. Find out the speed and the mass of the object.
The lowest frequency standing wave pattern that can be made on a certain string on a cello is 220Hz (which is a musical "A" note). calculate the frequency of the 3rd overtone
hearing the siren of an approaching fire truck, you pull over to the side of the road and stop. As the truck approaches, you hear a tone of 460 Hz; Find speed of the truck
A sinusoidal voltage %u0394v = (75 V) sin (180t) is applied to a series RLC circuit with L = 20 mH, C = 155 %u03BCF, and R = 30 %u03A9. What is the maximum current in the circuit
How much work is needed to move a 120-kg refrigerator.
While exercising, the following physiological changes occur for a certain person. His systolic pressure increases by 46 %. Which change has the strongest effect on blood flow
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