Physics, 24.05.2020 06:01 bartfrank447
A block of mass 5kg start at point A with a speed of 15m/s on flat frictionless surface. At point B, it encounters an incline with coefficient of kinetic friction 0.5. The block makes it up the incline to a second flat frictionless surface. What is the work done? what is the velocity of the block at point C. The incline is 2.2m long at an angle of 15.
Answers: 2
Physics, 22.06.2019 13:30
Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline
Answers: 1
Physics, 22.06.2019 18:30
Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions
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 23:00
Awelder using a tank of volume 7.50×10^-2 m^3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.30×10^5 pa and temperature of 37.1 ∘c. the tank has a small leak, and in time some of the oxygen leaks out. on a day when the temperature is 23.1 ∘c, the gauge pressure of the oxygen in the tank is 2.00×10^5 pa . a) find the initial mass of oxygen. b) find the mass of oxygen that has leaked out.
Answers: 3
A block of mass 5kg start at point A with a speed of 15m/s on flat frictionless surface. At point B,...
Biology, 30.09.2019 14:30
Mathematics, 30.09.2019 14:30
Mathematics, 30.09.2019 14:30
English, 30.09.2019 14:30
Geography, 30.09.2019 14:30
Social Studies, 30.09.2019 14:30
Spanish, 30.09.2019 14:30
History, 30.09.2019 14:30
Mathematics, 30.09.2019 14:30
Mathematics, 30.09.2019 14:30
Geography, 30.09.2019 14:30