Physics, 06.06.2021 02:30 talahtoo2924
A 45000 watt crane operating at full power lifts a 2100 kg object vertically for 17.4 seconds. How high has the crane lifted the object?
Answers: 2
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Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.
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Physics, 22.06.2019 11:00
If a simple machine reduces the strength of a force, what must be increased?
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Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little
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Physics, 23.06.2019 03:30
Which statement is true? a) the work done to lift an object 6 meters is greater than the gravitational potential energy it gains. b) the work required to push an object is less than the work required to pull an object the same distance. c) the work required to raise an object to a height is equal to the gravitational potential energy the object gains. d) the work done against gravity to lift an object straight up is greater than the work required to roll it up a ramp.
Answers: 1
A 45000 watt crane operating at full power lifts a 2100 kg object vertically for 17.4 seconds. How h...
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