Physics, 10.09.2021 04:20, aklilrodowx1q5
Khoảng cách giữa một prôton và một êlectron là r = 5.10^-11 (m), coi rằng prôton và êlectron là các điện tích điểm, có độ lớn |qe| = |qp| = 1,6.10^-19C. Lực tương tác giữa chúng là:
Answers: 2
Physics, 21.06.2019 18:00, kitkatwolf
What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?
Answers: 1
Physics, 21.06.2019 20:20, Perdikaris
Aforce of 34n stretches a very light ideal spring 0.73 m from equilibrium, what is the force constant (spring constant) of the spring? (a) 47n/m (b) 38n/m (c) 53n/m (d) 25n/m
Answers: 3
Physics, 21.06.2019 23:00, POOPINgligma
Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?
Answers: 1
Physics, 22.06.2019 00:50, gungamer720
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
Khoảng cách giữa một prôton và một êlectron là r = 5.10^-11 (m), coi rằng prôton và êlectron là các...
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