-1
9
5 points
An engine does 1421000 J of work to lift a beam 145 meters. How much forc...
Physics, 25.05.2021 08:40, pearpeaerrr1993
-1
9
5 points
An engine does 1421000 J of work to lift a beam 145 meters. How much force was exerted to lift the beam.
1566N
9800N
20445 N
50000N
Answers: 1
Physics, 22.06.2019 16:10, Wemaybewrong
Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
Answers: 1
Physics, 23.06.2019 01:30, kris1920
When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.
Answers: 3
Physics, 23.06.2019 02:00, jocelyn7575
Provides most of the energy used in the world today. question 4 options: wind fossil fuel moving water sunlight
Answers: 1
English, 10.12.2020 19:30
World Languages, 10.12.2020 19:30