Consider a situation where you exert a force F on a crate of mass m, moving it at a speed v a distance d across a floor in a time interval t.The power you supply to the crate is __________
Fill in the blank(s) with correct word
Fd/t
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A "GUT" (grand unified theory) refers to theories that ________
A) unify the electromagnetic and weak forces B) unify the strong force with the electromagnetic and weak forces C) unify gravity with the strong and weak forces D) unify all four forces together
The least massive main-sequence stars have a/an _____ luminosity class and a/an _____ spectral class
Fill in the blank(s) with correct word
A 15,000-N car on a hydraulic lift rests on a cylinder with a piston of radius 0.20 m. If a connecting cylinder with a piston of 0.050-m radius is driven by compressed air, what force must be applied to this smaller piston in order to lift the car?
a. 600 N c. 3000 N b. 940 N d. 15,000 N
Capacitive reactance XC is given by
a. 1/?C b. ?C c. ?/C d. C/? e. 1/?2C