Physics, 09.12.2020 07:20 Isabella1319
How much work is it to lift a 2.0 kg sack of potatoes vertically 6.5 m?
Answers: 2
Physics, 22.06.2019 05:00
Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
Answers: 1
Physics, 22.06.2019 07:10
Polly is pushing a box across the floor with a force of 30 n. the force of gravity is โ8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?
Answers: 2
Physics, 22.06.2019 16:50
Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaฮธ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the birdโs angular momentum about the point where you are standing?
Answers: 2
Physics, 23.06.2019 11:00
Can any one me on number 4? i do know that itโs not a cause i gotten that wrong on the first try.
Answers: 1
How much work is it to lift a 2.0 kg sack of potatoes vertically 6.5 m?...
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