subject
Physics, 31.07.2019 14:30 cbogrett

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.

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 18:30
What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.
Answers: 1
question
Physics, 22.06.2019 15:00
What is the role of lenses in microscopy?
Answers: 2
question
Physics, 22.06.2019 23:30
Sound travels slower in colder air that it does in warmer air. make a claim about the effect of air temperature on the speed of sound. support your claim with evidence
Answers: 3
question
Physics, 23.06.2019 00:00
A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be −1,200 m/s.
Answers: 3
You know the right answer?
An athlete is working out in the weight room. he steadily holds 50 kg above his head for ten seconds...
Questions
Questions on the website: 13722359