Physics, 19.08.2019 21:40 cheerthi16
Substances a-d have the following specific heats (j/(kg*k)): substance a: 900; substance b: 170; substance c: 270; substance d: 4,180. which substance would be the best for transferring heat in a heating or cooling system? a. substance a b. substance b c. substance c d. substance d **not sure! you: )
Answers: 1
Physics, 22.06.2019 22:00
Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?
Answers: 1
Physics, 22.06.2019 22:20
One hazard of space travel is debris left by previous missions. there are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. calculate the force exerted by a 0.110 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. such a collision chipped the window of the ill-fated challenger in june 1983, causing $50,000 of damage.
Answers: 2
Physics, 23.06.2019 01:00
Is the portion of the electromagnetic spectrum that has a frequency just above that of visible light.
Answers: 3
Physics, 23.06.2019 03:30
As you lift an 88 n box straight upward you produce a power of 72 w. what is the speed of the box?
Answers: 2
Substances a-d have the following specific heats (j/(kg*k)): substance a: 900; substance b: 170;...
History, 30.11.2020 20:10
English, 30.11.2020 20:10
Mathematics, 30.11.2020 20:10
Biology, 30.11.2020 20:10