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Suppose the total power of a laser beam (optical output power) is 0.5 x 10-3 W. If 46 percent of that power is inside a square 0.07 m on a side, what is the average intensity of light within the square?
A series RLC circuit consists of a 100 ? resistor, a 0.190H inductor, and a 42.0 ?F capacitor. It is attached to a 120 V/60 Hz power line. What is the average power loss
The escape speed of a particular planet with a radius of 8.600e+6 m is 14,500 m/s. What is the mass of the planet
a 4.5kg ham is thrown into a stationary 15-kg shopping cart.at what speed will the cart travel if the ham had an initial speed of 2.2m/s, how long did the collision between the two last
A laser with wavelength d/8 is shining light on a double slit with slit separation 0.450mm. What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser
A ranger in a national park is driving at 28.0 mi/h when a deer jumps into the road 225 ft ahead of the vehicle. After a reaction time t, the ranger applies the brakes to produce an acceleration of a = -9.00 ft/s2. What is the most reaction time a..
What is the least (non-zero) thickness for the air layer between two flat, and parallel, glass surfaces if the glass is to appear dark while 640 nm light is incident normally? What if the glass is to appear bright.
A child in a boat throws a 5.600 kg package out horizontally with a speed of 11.00 m/s. Determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 23.00 kg and that of the boat is 45.00 kg.
A horse races once around a circular track in a time of 118s, with a speed of 17 m/s. What is the radius of the track? How do you go about solving this.
Using and Atwood machine with masses m1 and m2, at first with m1 a distance 2h above m2, what is the speed of either mass they pass each other? Make use of energy to solve (hint they cross halfway between the starting positions of the two masses).
A 50.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 560 kg · m2 and a radius of 2.00 m. find With what angular speed does the turntable rotate
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 62.4° above the horizontal. By how much does the rocket clear the top of the wall
Assume you are a scuba diver preparing for a 30m dive into sea water of density 1025 kg/m3, what volume will be in your lungs at a depth of 15m? at 30m
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