Answers: 1
Physics, 22.06.2019 07:10
Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?
Answers: 2
Physics, 22.06.2019 12:00
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
Physics, 22.06.2019 12:20
A2.0 μf capacitor and a 4.0 μf capacitor are connected in series across a 0.827-kv potential. the charged capacitors are then disconnected from the source and connected to each other with terminals of like sign together. find the voltage across each capacitor.
Answers: 2
Physics, 22.06.2019 13:40
Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.
Answers: 2
Compared to the resistivity of a 0.4-meter length of 1-millimeter-diameter copper wire at 0 degrees...
History, 21.01.2021 19:00
Health, 21.01.2021 19:10
History, 21.01.2021 19:10
Health, 21.01.2021 19:10
Mathematics, 21.01.2021 19:10
Biology, 21.01.2021 19:10
History, 21.01.2021 19:10
History, 21.01.2021 19:10
Mathematics, 21.01.2021 19:10
Mathematics, 21.01.2021 19:10
Mathematics, 21.01.2021 19:10
Mathematics, 21.01.2021 19:10
History, 21.01.2021 19:10
Geography, 21.01.2021 19:10
Physics, 21.01.2021 19:10