Physics, 05.02.2021 19:00 mariahcid904
Mr. Draper asks his class to design a system of gears, strings, and pulleys that will allow him to pull back the classroom's curtains simply by turning a crank at his desk. The system must be built within the following constraints: It must be made only out of metal gears, metal pulleys, string, and one crank. It must be strong enough to move the curtains. It cannot be in the way of students or their desks. It must take no more than one day to build. The final design will use which type of energy to perform work on the curtains? A. elastic potential energy B. thermal energy C. gravitational potential energy D. kinetic energy
Answers: 1
Physics, 22.06.2019 01:30
Which example has gravitational potential energy? a.a horse slowing down from a run b.an apple about to fall from a tree branch c.a bicycle being pedaled down a horizontal path d.beaker sitting on the floor
Answers: 1
Physics, 22.06.2019 20:30
Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving
Answers: 2
Physics, 23.06.2019 01:30
The process of a material going through a change of state from a gas to a liquid
Answers: 2
Mr. Draper asks his class to design a system of gears, strings, and pulleys that will allow him to p...
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