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1. What is your evidence that light carries energy?
2. It takes light 8 minutes to get to earth from the sun. The sun is 150,000,000,000 meters away. What is the speed of light in meters per second?
a stone is thrown horizontally with an initial speed of 10 ms from the edge of a cliff. a stop watch measures the
Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each. Sphere A has a radius 7 times that of sphere B. Let and be the charges on the two spheres, and let and be the electric-field magnitu..
An engine of an aircraft propeller delievers an amount of power 171 hp to the propeller at the rotational velocity of 2360 rev/min, How much torque does the aircraft engine provide
In a physics lab, you attach a 0.400-kg air-track glider to the end of an ideal spring of negligible mass and start it oscillating. Find the spring's force constant
A 3.6cm strip of wire is connected to a battery andperpendictular to the magnetic field of a solenoid is 15cm long andmade of 12,600 loops.calculate thecurrent in the strip of wire
Sketch and describe a floe control loop.
Estimate the fraction of electrons excited above the fermi level at room temp for Aluminum. The effective mass of Al is 1.0xm, where m - free electron mass
If you apply a force of 1.0 Newton to a cart of mass 1.0 kilogram with negligible friction, find what do you expect the acceleration to be
A neutron decays into a proton, an electron, and an anti-neutrino. Why can we state that the charge of the anti-neutrino must be zero?
A 1860 kg truck traveling north at 41 km/h turns east andaccelerates to 60 km/h. What is the change in the truck's kinetic energy
Dan is gliding on his skateboard at 4.00m/s . He suddenly jumps backward off the skateboard, How fast is Dan going as his feet hit the ground
An electron that has an energy of approximately 62 eV moves between rigid walls 1.4 nm apart. Find the quantum number n for the energy state that the electron occupies.
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