Physics, 21.08.2019 20:30 Sparkleskeepsgoing
Acrane lifts a 425 kg steel beam vertically upward a distance of 98 m. how much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s^2? neglect frictional forces. a) 2.8 x 10^5j b) 4.1 x 10^5j c) 4.8 x 10^5j d) 3.3 x 10^5j
Answers: 1
Physics, 22.06.2019 19:30
Which of these has some mechanical energy? a. an atom b. heat inside earth c. a book on a shelf d. the fire from a lit match
Answers: 1
Physics, 23.06.2019 01:30
Imagine that the rightward current flows in the rod for a short time. as a result, what will the net charge on the right and left ends of the rod become? left end negative and right end positive left end negative and right end negative left end negative and right end nearly neutral left end nearly neutral and right end positive both ends nearly neutral
Answers: 3
Physics, 23.06.2019 02:20
Aparticle initially located at the origin has an acceleration of = 2.00ĵ m/s2 and an initial velocity of i = 8.00î m/s. find (a) the vector position of the particle at any time t (where t is measured in seconds), (b) the velocity of the particle at any time t, (c) the position of the particle at t = 7.00 s, and (d) the speed of the particle at t = 7.00
Answers: 1
Acrane lifts a 425 kg steel beam vertically upward a distance of 98 m. how much work does the crane...
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