Physics, 21.03.2020 03:04 brooklyn4932
W is the work done on the system, K, U, and Eth are the kinetic, potential, and thermal energies of the system, respectively. Any energy not mentioned in the transformation is assumed to remain constant; if work is not mentioned, it is assumed to be zero.
Select a specific example of a system with the energy transformation shown.
K→ΔEth
a. A wood block sliding across a rough horizontal surface and slowing to a stop.
b. A block sliding on level ground, to which a cord you are holding on to is attached.
c. A wood block moving across a horizontal rough surface at constant speed.
d. A wood block sliding down a rough inclined surface at a constant speed.
Answers: 2
Physics, 22.06.2019 08:30
An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?
Answers: 1
Physics, 22.06.2019 15:20
Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
Answers: 3
Physics, 23.06.2019 00:30
Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.
Answers: 1
Physics, 23.06.2019 03:00
Which explanation most accurately describes convection within the ocean
Answers: 2
W is the work done on the system, K, U, and Eth are the kinetic, potential, and thermal energies of...
Mathematics, 03.07.2019 06:30
Chemistry, 03.07.2019 06:30
Computers and Technology, 03.07.2019 06:30
Mathematics, 03.07.2019 06:30
Mathematics, 03.07.2019 06:30
Mathematics, 03.07.2019 06:30
Mathematics, 03.07.2019 06:30
History, 03.07.2019 06:30
Chemistry, 03.07.2019 06:40
Biology, 03.07.2019 06:40
English, 03.07.2019 06:40