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A 2.00 kg block is placed against a spring on a frictionless 26° incline. The spring, whose spring constant is 19.8N/cm, is compressed 18.3 cm and then released. What is the elastic potential energy of the compressed spring? What is the change in the gravitational potential energy of the block-Earth system as the block moves from the release point to its highest point on the incline?
A 64kg human sprinter can accelerate from rest to 10 m/s in 3.0s . During the same time interval, a 28kg greyhound can go from rest to 20 m/s. What is the average power output of the human
q1. a 4.20 kg model rocket is launched expelling 57.0 g of burned fuel from its exhaust at a speed of 675 ms. what is
what will be the frequency of vibrations. At one instant a bicyclist is 70m due east of a park's flagpole, going due south with a speed of 15m/s. Then, 19s later, the cyclist is 65m due north of the flagpole, going due east with a speed of 14 m/s.
A particular satellite was placed in a circular orbit about 161 mi above Earth. Determine the orbital speed of the satellite
A positive point charge Q1 = 5.0*10-5 C is fixed at the origin of coordinates, Find the location(s) where the total electric field is equal to zero
questioncora lies in a tanning bed getting a tan. suppose that as 0.79 m2 of her skin is exposed to the light from the
The U.S. Army's parachuting team, the Golden Knights, are on a routine jumping mission over a deserted beach. With what average force did the parachuter hit sand
Consider a series RLC circuit with R = 15 , L = 196 mH, C = 75 µF, and a maximum voltage of 148 V. What is the impedance of the circuit at resonance
A system of 1219 particles, each of which is either an electron or a proton, has a net charge of -6.640×10-17 C. How many protons are in this system (exactly)
A 954 kg drag race car accelerates from rest to 113 km/h in 0.919 s. What average force is exerted on the car
Two people start at the same place and walk around a circular lake in opposite directions. How long will it be before they meet
On a hot day, the temperature of an 81099-L swimming pool increases by 4 degrees celcius. What is the net heat transfer during this heating
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