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62. A 17.0-kg crate is to be pulled a distance of 20.0 m, requiring1210 J of work to be done. If the job is done by attaching a ropeand pulling with a force of 75.0 N, at what angle is the ropeheld?
An amateur radio operator wishes to build a receiver that can tune a range from 13.8 MHz to 15.1MHz, What is the required value of the constant inductance
A 55 kg block of ice slides down a frictionless ramp that is 2.0 m long and 0.91 m high. Find the force exerted by the worker
Water is moving with a speed of 23.0 m/s through a pipe with a cross-sectional area of 4.0 cm2. What is the speed of flow at the lower level
If the car had been going 10m/s but had stopped in the same d = 167m distance, what would its acceleration have been.
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. But she does have devices to measure distance and time accurately. What is the mass of this canister
Explain how Karl lifed th cement. How much time would it take for the police officer to catch the speeder, assuming that the speeder maintains a sonstant speed? How fast will the police officer be traveling at this time.
A 3.0x10 ² kg piano is being lifted at a steady speed from ground level straight up to an apartment 10 m above the ground. How much time does it take to lift the piano
A fire engine moving to the right at 40 m/s sound its horn (frequency = 500 Hz) at the two vehicles shown in the figure. The car is moving to the right at 30 m/s, while the van is at rest. (a) What frequency is heard by the passenger in the car?
a student standing on a stationary skateboard tosses a textbook with a mass of mb 1.55 kg to a friend standing in
a transformer connected to a 120-v rms ac line is to supply 12. v rms to a portable electronic device. the total
The tallest spot on Earth is Mt. Everest, which is 8857 m above sea level. If the radius of the Earth to sea level is 6369 km, how much does the magnitude of g change between sea level and the top of Mt. Everest
in may 2008 the united states successfully landed a spacecraft named phoenix near the northern polar regions of mars.
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