subject
Physics, 11.12.2019 06:31 cam1976

"suppose that we repeat the experiment in the video but use hand-held weights of different masses and different initial speeds. in each of the cases below, the demonstrator starts with her arms extended (rotating at angular speed ω0) and then pulls her arms in (rotating at angular speed ωf). rank the cases below based on their final angular speed ωf (that is, when the demonstrator’s arms are pulled in), from slowest to fastest. since most of the mass of the demonstrator sits near the axis of rotation, ignore her mass for this question."

ansver
Answers: 3

Other questions on the subject: Physics

image
Physics, 22.06.2019 12:00, P4thing
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
image
Physics, 22.06.2019 14:50, MoogleCaliS
Nitrogen (n2) undergoes an internally reversible process from 6 bar, 247°c during which pν1.2 = constant. the initial volume is 0.1 m3 and the work for the process is 121.14 kj. assuming ideal gas behavior, and neglecting kinetic and potential energy effects, determine heat transfer, in kj, and the entropy change, in kj/s. show the process on a t-s diagram.
Answers: 2
image
Physics, 22.06.2019 19:50, carlinryan
An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)
Answers: 2
image
Physics, 23.06.2019 00:30, Ltik11900
What is the moment of inertia i of this assembly about the axis through which it is pivoted? express the moment of inertia in terms of mr
Answers: 2
You know the right answer?
"suppose that we repeat the experiment in the video but use hand-held weights of different masses an...

Questions in other subjects:

Konu
Mathematics, 10.10.2019 03:40
Konu
Mathematics, 10.10.2019 03:40