Which of the following determine kinetic energy? Speed and force

Mass and speed

Velocity and force

Mass and velocity

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What is the function of the commutator in a dc motor? a. to spin the magnet b. to change direct current into alternating current c. to change alternating current into direct current d. to spin the wire coil

Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses that are 1 m apart

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine