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There is a a bright 10,000 W light bulb shining in all directions that is in the middle of a large room. A thin black 1 m^2 sheet absorbs all the light that falls on it and is suspended 0.5 m above the light due to the radiation pressure. What is the mass of the sheet?
What is the kinetic energy of a 1,500 kg car with velocity of 72.0 km/hr? How much work must be done on the car to bring it to a complete stop.
A laser emits 1.00 x10^20 photons/sec. The laser has a wavelength of 473 nm. What is the power output of the laser
A charge +8.2 ?C is placed at the center of the hollow spherical conductor with the inner radius 3.3 cm and outer radius 5.0 cm. What is the total charge on the interior surface
A 0.1 kg hockey puck is moving forward along the ice at 5 m/s just before it is hit by a player's hockey stick. find the linear impulse applied by the hockey stick to the puck
What must the charge (sign and magnitude) of a particle of mass 1.40 be for it to remain stationary as placed in a downward-directed electric field of magnitude 670.
A woman at an airport is towing her 20.0 kg suitcase at constant speed by pulling on a strap at an angle theta above the horizontal. What angle does the strap make with the horizontal
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. Find the force acting on the electron as it revolves in a circular orbit of radius 5.35 10-11 m
A 5.00-g bullet, traveling horizontally with a velocity of magnitude 360 m/s, is fired into a wooden block with mass 0.800 kg, initially at rest on a level surface. What is the decrease in kinetic energy of the bullet
A 68 kg student balances a 1400 elephant kg on a hydraulic lift. When a second student joins the first, What is the second student's mass
A 350g object on a frictionless, horizontal lab table is pushed against a spring of force constant 40.0N/cm, How fast is the object moving when it has gained half of the spring's original stored energy
A particle with a charge of 31?C moves with a speed of 72m/s in the positive x direction. The magnetic field in this region of space has a component of 0.38T in the positive y direction, what is the magnitude of the magnetic force on the particle
In a rectangular coordinate system, a positive point charge q= 4.50 nC is placed at the point x= 0.170 m, y=0, Find the direction of the electric field from the positive x axis.
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