Physics, 30.06.2019 08:30 alyonaprotopopova
A2 kg ball attached to a frictionless surface is being spun in a circle of radius 0.5 meters. the string will break when the tension in the string exceeds 16n. how fast can the ball be spinning before the string will break?
Answers: 1
Physics, 22.06.2019 04:00
What is the final velocity of the initial velocity of 25 and -50?
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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 11:20
How to tell if a molecule is polar or nonpolar with electronegativity
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Physics, 22.06.2019 13:30
6–43 a food department is kept at 2128c by a refrigerator in an environment at 308c. the total heat gain to the food department is estimated to be 3300 kj/h and the heat rejection in the condenser is 4800 kj/h. determine the power input to the compressor, in kw and the cop of the refrigerator.
Answers: 2
A2 kg ball attached to a frictionless surface is being spun in a circle of radius 0.5 meters. the st...
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