Physics, 12.07.2019 01:30 kevin72937
Which best compares simple machines with compound machines? both make work easier, but compound machines consist of two or more simple machines. both make work easier, but compound machines have less mechanical advantage than simple machines. both can reduce the force needed to do work, but simple machines are more common in everyday machines. both always increase the force needed to do work, but compound machines are more common in everyday machines.
Answers: 2
Physics, 21.06.2019 13:30
We found the centripetal acceleration of the earth as it revolves around the sun. compute the centripetal acceleration of a point on the surface of the earth at the equator caused by the rotation of the earth about its axis. (enter the magnitude. the radius of the earth is 6,371 km.)
Answers: 2
Physics, 22.06.2019 14:30
Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia
Answers: 2
Physics, 22.06.2019 18:30
Aprotein molecule in an electrophoresis gel has a negative charge. the exact charge depends on the ph of the solution, but 30 excess electrons is typical. what is the magnitude of the electric force on a protein with this charge in a 1600n/c electric field? write in two significant numbers, and also in newton
Answers: 2
Physics, 22.06.2019 19:50
An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)
Answers: 2
Which best compares simple machines with compound machines? both make work easier, but compound mac...
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