Physics, 25.02.2020 20:57 dkhakdoust
When the cyclist encounters a steep hill, in order to maintain the same energy consumption and pedaling rate she changes her gear ratio to 0.7. Which of the following statements describes the change caused by the new gear ratio?
(a) The angular speed of the rear gear increases.
(b) The torque exerted on the rear gear wheel increases.
(c) The torque exerted on the front gear wheel increases.
(d) The power delivered to the rear gear wheel increases.
Answers: 3
Physics, 21.06.2019 20:00
The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.
Answers: 1
Physics, 21.06.2019 21:30
In what direction does the medium move relative to the direction of the wave? explain.
Answers: 3
Physics, 22.06.2019 01:10
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, 22.06.2019 04:10
An initially unpolarized light if intensity 500 w/m^2 passes through four polarizers. the transmission axis between adjacent polarizers is 45∘. what percentage of the initial intensity is transmitted by the system?
Answers: 2
When the cyclist encounters a steep hill, in order to maintain the same energy consumption and pedal...
History, 28.10.2019 03:31
Biology, 28.10.2019 03:31
English, 28.10.2019 03:31
Mathematics, 28.10.2019 03:31
Advanced Placement (AP), 28.10.2019 03:31
Mathematics, 28.10.2019 03:31
English, 28.10.2019 03:31
Mathematics, 28.10.2019 03:31
Mathematics, 28.10.2019 03:31
Social Studies, 28.10.2019 03:31