Physics, 24.06.2021 20:40, daniellaZemira
Con lắc lò xo treo thẳng đứng đang dao động điều hòa với biên độ 4 cm . Tỉ số giữa lực đàn hồi lớn nhất và lực đàn hồi khi đi qua vị trí cân bằng là 3. Lấy g = 10 (m/s²). Tần số góc của dao động là.
Answers: 1
Physics, 22.06.2019 01:10, Katyazamo
The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping
Answers: 1
Physics, 23.06.2019 03:10, stotherow5
You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.
Answers: 2
Physics, 23.06.2019 06:30, sarahgarza5440
If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.
Answers: 1
Con lắc lò xo treo thẳng đứng đang dao động điều hòa với biên độ 4 cm . Tỉ số giữa lực đàn hồi lớn n...
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