An athlete is working out in the weight room. he steadily holds 50 kg above his head for ten seconds which statement is true about this situation.1 the athlete isn't doing any work because he doesn't move the weight.2 the athlete isn't doing any work because he doesn't hold the weight long enough. 3 the athlete is doing work because he prevents the weight from falling down.4 the athlete is doing work because 50 kg is a significant load to lift.
Answers: 1
Physics, 22.06.2019 02:30, erinolson07cats
The boy of mass 30 kg is at r1= 2 meters from the fulcrum. of the girl is 45 kg, at what r2 must she sit so that they are balanced ?
Answers: 3
Physics, 22.06.2019 04:30, tayveon122
Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?
Answers: 2
Physics, 22.06.2019 22:30, allysoftball4878
Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.
Answers: 1
An athlete is working out in the weight room. he steadily holds 50 kg above his head for ten seconds...
Mathematics, 30.08.2019 01:30
Mathematics, 30.08.2019 01:30
Mathematics, 30.08.2019 01:30
Mathematics, 30.08.2019 01:30