Physics, 04.12.2019 19:31 Nopernope11
An electromagnet is a device in which moving electric charges (current) in a coil of wire create a magnet. what’s one advantage of using electromagnets in devices? a electromagnets have a strong, constant magnetic field. b electromagnets are more powerful than permanent magnets. c electromagnets don’t need a source of electricity to work. d electromagnets can easily be turned on and off.
Answers: 2
Physics, 22.06.2019 02:00
Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?
Answers: 3
Physics, 22.06.2019 11:10
Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.
Answers: 3
Physics, 22.06.2019 15:30
Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.
Answers: 2
Physics, 23.06.2019 00:30
Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?
Answers: 1
An electromagnet is a device in which moving electric charges (current) in a coil of wire create a m...
English, 16.07.2019 23:00
History, 16.07.2019 23:00
Mathematics, 16.07.2019 23:00
History, 16.07.2019 23:00
Physics, 16.07.2019 23:00
Biology, 16.07.2019 23:00
Mathematics, 16.07.2019 23:00
Mathematics, 16.07.2019 23:00
English, 16.07.2019 23:00