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Question: An electron moving perpendicular to a magnetic field of 4.2 X 10-2 T moves in a circle of radius 0.20 cm.
Question 1: How fast is this electron moving?
Please include each step and the equations you used. Thank you!
A projectile is fired straight upward from the Earth's surface at the South Pole with an initial speed equal to one third the escape speed. What is the altitude of the projectile at this instant
A 15.0 kg bucket of water is suspended by a very light rope wrapped around a solid uniform cylinder 0.300 m in diameter with a mass of 12.0 kg. What is the tension in the rope while the bucket is falling
A 11.0 kilogram object undergoes an acceleration of 1.5 m/s2. find what acceleration is produced
A length of aluminum wire has a resistance of 16.0 ? at 28.0°C. When the wire is warmed in an oven and reaches thermal equilibrium, find the temperature of the oven
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A 7.00-kg block of ice, released fromrest at the top of a 1.75-m-longfrictionless ramp, slides downhill, reaching a speed 2.25 m/s of at the bottom. What is the angle between the ramp and thehorizontal?
A bucket filled with water has a mass of 64.9 kg and is attached to a rope that is wound around a 0.4 m radius cylinder. Illustrate what torque does the bucket produce around the center of the cylinder?
A box is sliding up an incline that makes an angle of 23.3 ° with respect to the horizontal. How far does the box travel along the incline before coming to rest
A luge and its rider, with a total mass of 81 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 30 m/s. If a force slows them to a stop at a constant rate of 3.9 m/s2, (a) what magnitude F is required for the ..
A student wants to lose some weight. He knows that rigorous aerobic activity uses about 700 kcal/h (2900 kJ/h) and that it takes about 2000 kcal per day (8400 kJ) just to support necessary biological functions, at what rate will this student "burn"..
At a given instant, the blood pressure in the heart is 1.8 x 104 Pa. If an artery in the brain is 0.37 m above the heart, what is the pressure in the artery
Suppose that the central diffraction envelope of a double-slit diffraction pattern contains 11 bright fringes and the first diffraction minima eliminate (are coincident with) bright fringes. How many bright fringes lie between the first and second..
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