Physics, 10.11.2019 06:31, gabbymcdermid
Achild slides down a slide with a 28° incline, and at the bottom her speed is precisely one half what it would have been if the slide had been frictionless. calculate the coefficient of kinetic friction between the slide and the child. here's the two equations i used: sin28*m*g=m(v2/t) since v2=v1+at the other one is with friction: sin28*m*g-u*cos28*m*g=m((1/2*v2)/t)
Answers: 3
Physics, 22.06.2019 09:30, ayeheavymetal
The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.
Answers: 1
Physics, 22.06.2019 12:50, angelica3752
Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom
Answers: 1
Physics, 22.06.2019 19:00, helpmegraduate40
1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)
Answers: 1
Achild slides down a slide with a 28° incline, and at the bottom her speed is precisely one half wha...
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