1. A prosthetic lower leg has a mass of 1.81 kg and a COM of 21 cm from the knee joint. The radius of gyration (about the center of mass) is 14.1 cm. (a) Calculate mass moment of inertia of the lower leg about the knee joint, Ik . (b) If the distance between the knee and hip joints is 42 cm, calculate Ih for this prosthesis about the hip joint as the amputee swings through with a locked knee. (c) If the radius of gyration (about the center of mass) increases to 17 cm, how does this affect Ik calculated in part (a)

Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?

Identify the amplitude on the diagram and give the correct description. question 3 options: a because amplitude is the distance from wave crest to wave crest. b because the wavelength shows amplitude. c because amplitude is the distance between a crest (or trough) and rest. d because wavelength show amplitude. (brainiest if you get it right! ) ~kayla

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit