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A uniform electric field of magnitude 430 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.60 cm. (a) What is the work done by the field on the electron? (b) What is the change in potential energy associated with the electron? (c) What is the velocity of the electron? magnitude m/s direction
A 80.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the firefighter's speed just before she collides with the platform
a defibrillator consists of a 16.1-microf capacitor that is charged to 8.3 kv.a if the capacitor is discharged in 1.0
A bicycle tire whose volume is 4.1 x 10-4 m3 has a temperature of 283 K and an absolute pressure of 3.31 x 105 Pa. How many moles of air must be pumped into the tire
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and drawn out into a long fiber. what is the length of the fiber
What is the rate at which water flows outA large tank supported high off the ground is filled with water to a depth of 2.05 m. What is the rate at which water flows out, in cubic meters per second
Two sound sources radiating in phase at a frequency of 560 Hz interfere such that maxima are heard at angles of 0 and 25° from a line perpendicular to that joining the two sources. Find out the separation between the two sources. (Wave velocity of..
If a container has a water level 20 cm above the base and you punch a hole in the side 12 cm high
A ball m=1kg rolling without slipping on a flat surface with v=.1m/s strikes the wall after which v=.08m/s. What is the amount of heat generated due to impact?
Suppose you wish to survey 16000 square degrees of the sky to some limiting brightness as fast as possible, but necessarily within some budgetary constraints. Further suppose that the cost of telescopes ~ (diameter of the primary mirror)2.5 and th..
An airplane is flying with a velocity of 93.0 m/s at an angle of 25.0 degrees above the horizontal, How far from the dog will the suitcase land in m
A rocket is launched at an angle of 54.0° above thehorizontal with an initial speed of 97m/s. The rocket moves for 3.00 s along its initial line of motionwith an acceleration of 30.0m/s2. At this time, its engines fail and the rocket proceeds to m..
Suppose now that the apparatus is sealed, and the temperature rises to 40.0o C. Find the pressure inside the apparatus now
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