Physics, 04.07.2019 17:40 jessicamcummins
When a candle burns, which forms of energy does the chemical energy in the candle change to?
Answers: 2
Physics, 22.06.2019 11:30
Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?
Answers: 1
Physics, 22.06.2019 13:10
Which additional product balances the reaction h2so4 + 2naoh â na2so4 + 2h2o 2oh h2o2 h3o
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Physics, 22.06.2019 13:10
The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 à 1013 rad/s. the mass of a nickel atom is 9.75 à 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 à 10-34 j ⢠s, , 1 ev = 1.60 à 10-19 j)
Answers: 2
Physics, 23.06.2019 00:20
What efficiency of a car's engine when heat input is 200,000 joules and waste heat is 150,000 joules? a. 75% b. 35% c. 25% d. 85%
Answers: 2
When a candle burns, which forms of energy does the chemical energy in the candle change to?...
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