subject
Physics, 23.07.2021 14:00 mcalepcrager

Một con lắc lò xo, gồm lò xo nhẹ có độ cứng 50 N/m, vật có khối lượng 2 kg, dao động điều hoà dọc theo trục Ox theo phương ngang (O là vị trí cản bằng) theo phương trình x = 6cos(ωt + π/3) (cm). Tính lực đàn hồi lò
xo ở thời điềm t = 0,4π (s).
A. 150 N. B. 1,5 N. C. 300 N. D. 3,0 N

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 04:00
Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j
Answers: 2
question
Physics, 22.06.2019 09:30
How would a small bar magnet be oriented when placed at position x?
Answers: 2
question
Physics, 22.06.2019 18:00
At the negative terminal of the battery the electron has electric potential energy. what happens to this energy as the electron jumps from the negative to the positive terminal?
Answers: 1
question
Physics, 22.06.2019 23:30
Sound travels slower in colder air that it does in warmer air. make a claim about the effect of air temperature on the speed of sound. support your claim with evidence
Answers: 3
You know the right answer?
Một con lắc lò xo, gồm lò xo nhẹ có độ cứng 50 N/m, vật có khối lượng 2 kg, dao động điều hoà dọc th...
Questions
question
Mathematics, 13.01.2021 14:00
question
Biology, 13.01.2021 14:00
question
Mathematics, 13.01.2021 14:00
question
Chemistry, 13.01.2021 14:00
Questions on the website: 13722367