Which observations correctly describe the second law of thermodynamics? Check all that apply.
<...
Physics, 25.03.2020 00:29 sethjohnson386pbnm3x
Which observations correctly describe the second law of thermodynamics? Check all that apply.
Thermal energy that is not used to do work is often released to the surroundings.
Thermal energy flows from a cooler object to a warmer object.
Thermal energy flows from a warmer object to a cooler object.
Thermal energy is released as unusable energy by a heat engine, which is never 100 percent efficient.
Thermal energy flows when two objects in contact have a temperature difference.
Answers: 1,3,4,5
Answers: 3
Physics, 21.06.2019 18:10
Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j
Answers: 2
Physics, 21.06.2019 22:40
Um vetor representa um deslocamento cujo módulo é 20 m. se v faz um ângulo de 60 graus com a horizontal, qual é o valor das componentes horizontal e vertical deste vetor?
Answers: 2
Physics, 21.06.2019 23:10
Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net
Answers: 1
Physics, 22.06.2019 14:30
Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
Answers: 2
Biology, 02.02.2020 23:50
Mathematics, 02.02.2020 23:50
Mathematics, 02.02.2020 23:50
Health, 02.02.2020 23:50
Physics, 02.02.2020 23:50
Social Studies, 02.02.2020 23:50
Mathematics, 02.02.2020 23:50
Chemistry, 02.02.2020 23:50
English, 02.02.2020 23:50
History, 02.02.2020 23:50
Social Studies, 02.02.2020 23:50