Physics, 14.09.2019 10:30, chinadoll24
Aperson wants to lose weight by "pumping iron". the person lifts an 80 kg weight 1 meter. how many times must this weight be lifted if one pound of fat contains approximately 3500 calories. if the weight can be lifted once every two seconds, how long would this activity take? 1 cal=4184 j.
Answers: 3
Physics, 22.06.2019 10:00, Trinhphuongtran
One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
Answers: 2
Aperson wants to lose weight by "pumping iron". the person lifts an 80 kg weight 1 meter. how many t...
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