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A power supply that provides a voltage of 42.0 V·sin(362·t), where t is in seconds, is connected across a resistor R = 119 ?. Calculate the average power dissipated in the resistor.
A physics book slides off a horizontal tabletop with a speed of 2.70m/s . It strikes the floor in 0.350s. Find the direction of book's velocity, just before the book reaches the floor
After the skier on the hill had been moving for 5.0 s, friction of the snow suddenly increasedmaking the net force on the skier zero. what is new coefficient of friction? how fast would the skier now be going after skiing for 5.0s.
calculate the maximum range when radar operates at 10ghz and has peak power10 mwattsn ratio10dbantenna cross
A speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. The belt of one speed ramp moves at a constant speed such that a person who stands still on it leaves the ramp 66 s after getting on.
Monochromatic light falls on a slit that is 3.50 multiplied by 10-3 mm wide. what is the frequency of the light used
Your cup of coffee is too hot to drink when served at 95.What is mass of an ice cube, taken from a -19.0 freezer, that will cool your coffee to a pleasant 62.
A constant torque of 21.4 N•m is applied to a grindstone whose moment of inertia is 0.125 kg•m2. Using energy principles, determine the angular speed (in revolutions per second) after the grindstone has made 19 revolutions. (Avoid friction.) Do no..
If the 800-g car runs into a stationary 300-g car at the bottom of the ramp what is the velocity of the two cars after an inelastic collision?
Discuss displacement versus distance moved for an object and illustrate with examples. Define Inertia and explain its consequences on motion
a reseacher wishes to estimate with 95 confidence the percentage of adults who support abolsihing the penny. his
question1as at rest two trains has sirens that release a frequency of 300 hz. the trains travel toward one another and
What is the magnitude of the apparent weight of a 66 astronaut 4500 from the center of Earth's Moon in a space vehicle moving at constant velocity?
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