subject
Physics, 13.11.2019 22:31 kountryboye25

New e-bike (electric assist bicycle). i prop it up so that the back wheel can spin freely (its not touching the ground). i give it a push and watch it spin. then, at time t=0, when its angular velocity is 17.0 rad/s , i turn on the electric motor so that the wheel has a constant angular acceleration of 27.0 rad/s2 . then at time t = 2.40 s i turn the motor off. from then on, the wheel turns through an angle of 435 rad as it gradually slows to a stop, at constant angular deceleration.

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 21:30
Aparticle with mass 1.81×10−3 kg and a charge of 1.22×10−8 c has, at a given instant, a velocity v⃗ =(3.00×104m/s)j^. what are the magnitude and direction of the particle’s acceleration produced by a uniform magnetic field b⃗ =(1.63t)i^+(0.980t)j^?
Answers: 2
question
Physics, 22.06.2019 06:00
(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.
Answers: 1
question
Physics, 22.06.2019 16:00
Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?
Answers: 1
question
Physics, 22.06.2019 18:20
An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped
Answers: 2
You know the right answer?
New e-bike (electric assist bicycle). i prop it up so that the back wheel can spin freely (its not t...
Questions
question
Mathematics, 16.05.2020 18:57
question
Mathematics, 16.05.2020 18:57
question
Physics, 16.05.2020 18:57
question
Mathematics, 16.05.2020 18:57
question
Mathematics, 16.05.2020 18:57
Questions on the website: 13722362