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Q. A car with a 1.00 m long radio antenna travels at 60 km/hr in a place where the Earth's magnetic field is 6 x 10^-5T. What is the highest possible induced emf in the antenna as it moves through the Earth's magnetic field?
A 5 g bullet with an initial velocity of 95 m/s lodges in a block of wood and comes to rest at a distance of 6 cm. assume the bullet undergoes a constant negative acceleration; it slows at a constant rate. How much time does it take for bullet to ..
A 1.02 liter flask contains a certain quantity of ideal gas at 315 K. Then an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.60 times its original value. What is a final temperature.
What is the new acceleration of box
Students hypothesized that by running the electric current through the wire of the apparatus shown here, they could cause the non-magnetic nail to exhibit magnetic properties. What would be a reasonable way to test this.
Illustrates the difference between acceleration and velocity
A helicopter is ascending vertically with the speed of 5.79. At a height of 127 above the Earth, a package is dropped from a window. How long take the package to hit the ground.
A 5,000 kg satellite is orbiting the Earth in a circular path. The height of the satellite above the surface of the Earth is 800km. The velocity of the satellite is (Me = 5.98 x 10^24 kg, Re = 6.37 x 10^6 m, G = 6.67 x 10-11 N • m2/kg2)
A heavy rope used for as a mooring line for a cruise ship sags a shown. If the mass of the rope is 96 kg, what are the tensions in rope at A and B.
The effects of the spin of the earth
A young woman buys a sports car that can accelerate at the rate of 5.47m/s2. She decides to test the car by drag racing with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 1.47s before Kathy. Stan ..
A clean copper surface is exposed to light of wavelength 275 nm. What is the maximum speed of the photoelectrons emitted from this surface? Use the table below copper=4.7eV.
As part of a safety investigation, two 1900 cars traveling at 23 are crashed into different barriers. Find the average forces exerted on (a) car that hits a line of water barrels and takes 1.5 to stop, and (b) car that hits a concrete barrier and ta..
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