Physics, 10.02.2021 01:50 shelbysargent11
A 50.0-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.549 and 0.328,
respectively. What horizontal pushing force is required to (a) just start the crate moving and (b) slide the crate across the dock at a
constant speed?
Answers: 3
Physics, 22.06.2019 05:00
Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
Physics, 22.06.2019 05:00
Asmall 21 kilogram canoe is floating downriver at a speed of 1 m/s. what is the canoe's kinetic energy?
Answers: 1
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A90db sound wave strikes an eardrum whose area is 5.0×10^-5m^2. how much energy is absorbed by the eardrum per second
Answers: 1
A 50.0-kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic fr...
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