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(a) Calculate the current flowing through a wire, if 100 million electrons flow past a given point in the wire every second.
(b) Explain the difference between an electrical insulator and a conductor. Give an example of each
(c) Calculate the change in electric potential energy of a proton moved from a potential of +150 V to +100 V. Explicitly mention if the proton has gained or lost electric potential energy
The catapult on an aircraft carrier can take an aircraft from 0 to 209 mph in 7 seconds, at which timethe aircraft launches. Express the launch speed in SI units (meter-kilogram-second (MKS) system - not km/hr).
How much horizontal force F must a sprinter of mass 46kg exert on the starting blocks to produce this acceleration
A 8.80-g bullet has a speed of 1.17 km/s. What is the bullet's kinetic energy if its speed is halved
A batter hits a baseball m = 0.48 kg from rest with a force of F = 86 N, The ball is in contact with the bat for t = 0.26 s. How far did he ball travel horizontally in meters
A 199.4 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. The force keeping the satellite in orbit is 46.2 N. What is the velocity (speed) of the satellite
An ideal gas in a container is at a temperature of 70.6°C. What is the average translational kinetic energy of a gas molecule in the container
An pickup truck with mass 1.79 103kg is traveling eastbound at +14.1 m/s, Find the speed of the entangled vehicles after the collision
Suppose now that the apparatus is sealed, and the temperature rises to 40.0o C. Find the pressure inside the apparatus now
A nurse assisting with a surgical procedure at the Bella Hospital fails to remove a surgical sponge before the surgeon closes the incision.
In short-track speed skating, the track has straight sections and semicircles 16 m in diameter. Assume that a 64kg \;kg skater goes around the turn.
A block with a mass m1=60 kilogram sitting on a frictionless table is connected to a suspended mass m2=2.0 kilogram by a light string passing over a frictionless pulley. calculate the speed of which mass m2 hits the floor
A current of 18.0 mA ismaintained in a single circular loop of 2.50 m circumference. A magnetic field of 0.810 T is directed parallel to the plane of the loop.
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