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A proton moving with a speed of 4.00 · 105 m/s in the positive y-direction enters a uniform magnetic field of 0.400 T pointing in the positive x-direction. Calculate the magnitude of the force on the proton.
A converging lens with a focal length of 31 cm is used to form an image on a screen that is 2.7 m to the right the lens. Where must the object be placed
The potential on the axis of a uniformly charged disk at 5.5cm from the disk center is 140V ; the potential 12cm from the disk center is 110V. Find the disk radius in cm
Status Newton's First Law of motion.
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor. What is the magnitude of the impulse acting on the victim from the floor during the collision
A severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 33km2. What mass of water (in kg) fell on town? One cubic meter of water has a mass of 103kg.
A plate carries a charge of -3.9 µC, while a rod carries a charge of 2.9 µC. How many electrons must be transferred from the plate
The car now stops, and the four people get out. By how much does the car body rise on its suspension owing to this reduce in weight.
A hotel elevator ascends 110 {rm m} with a maximum speed of 4 {rm m/s}. Its acceleration and deceleration both have a magnitude of 1.20 {rm m/s^2}.
The first sled is 30kg, connected with rope B to the second sled of mass 20 kg, connected with rope A to the first sled of mass 10 kg, which is being pulled by a rope of 137 N. Illustrate What is the tension in ropes A and B.
Illustrate the force vectors with their tails at the origin of coordinate system. The orientation of your vectors will be graded. The exact lengths of your vectors will not be graded but relative length of one to the other will be graded.
A 1.4-m-diameter vat of liquid is 2.2m deep. The pressure at the bottom of the vat is 1.3atm. What is the mass of the liquid in the vat
Two equal positive charges of magnitude q1 = q2 = 6 nC are on the y axis at y1 = +3 cm and y2 = -3 cm. (a) What is the magnitude and direction of the electric field on the x axis at x = 6 cm? b) What is the force exerted on a third charge q0 = 4 n..
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