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A 218.3 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. The force keeping the satellite in orbit is 47.7 N. What is the velocity (speed) of the satellite?
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
A coach tells his little league players that hitting a .275 batting average, within 7% percentage error, means that they had a really great season. 7-year-old Tommy ended the season hitting a .258 batting average. According to his coach, did he ha..
What is the smallest thickness of a soap film (n = 1.33) that would appear black if illuminated with 450 -nm light? suppose there is air on both sides of the soap film.
How many 119W light bulbs can you use in a 134V circuit without tripping a 15 A circuit breaker? (The bulbs are connected in parallel that means that the potential difference across each light bulb is 134 V.)
An 80.7-kg jogger is heading due east at a speed of 1.950 m/s. A 53.60 kg jogger is heading 33.1° north of east at a speed of 2.89m/s. compute the magnitude (enter first) and direction of the sum of momenta of the two joggers.
Illustrate what is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing? How much work does the tension in the ropes do as the child swings from the initial position to the bottom?
Two loudspeakers on a concert stage are vibrating in phase. A listener is 57m from the left speaker and 30m from the right one. The listener can respond to all frequencies from 20 to 20 000 Hz.
Apply those results to get how much slower a clock goes near the earth than one, which is higher up.
An electric vehicle starts from rest and accelerates at a rate of 2 m/s2 in a straight line until it reaches a speed of 25.00 m/s. The vehicle then slows at a constant rate of 1.1 m/s2 until it stops. (1) How much time elapses from start to stop? ..
What is the magnitude of the average force of the bat on the ball throughout the ball-bat contact.
What is the pressure in Pascals at point b if the volume of point b is 0.400.
Intuitively, the man will not catch the bus unless he is running fast enough. In mathematical terms, there is a constraint on the man's speed so that the equation above gives a solution for that is a real positive number.
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