Physics, 18.03.2021 03:30 amorenextdoor
The four balls in the diagram are made of the same material and are solid
Why is the force of gravity between the balls in pair 2 greater than the force of gravity between the balls in pair 1
The balls in pair 2 are closer together than the balls in pair 1
The balls in pair 2 have a greater mass than the balls in pair 1
The balls in pair 1 have more rolling friction than the balls in pair 2
The balls in pair 1 have more magnetic force than the balls in pair 2
Answers: 1
Physics, 22.06.2019 13:20
Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron
Answers: 2
Physics, 22.06.2019 15:30
At 20∘c, the hole in an aluminum ring is 2.800 cm in diameter. you need to slip this ring over a steel shaft that has a room-temperature diameter of 2.804 cm . 1. to what common temperature should the ring and the shaft be heated so that the ring will just fit onto the shaft? coefficients of linear thermal expansion of steel and aluminum are 12×10−6 k−1 and23×10−6 k−1 respectively.
Answers: 1
The four balls in the diagram are made of the same material and are solid
Why is the force of gravi...
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