How many times must he lift the barbell

Reference no: EM13564088

A man drinks a bottle of beer and proposes to work off its460kj by exercising with 20 kg barbell. If each lift of thebarbell from chest to over his head is through 60 cm and theefficiency of his body is 10 percent, how many times must he lift the barbell?

Reference no: EM13564088

Questions Cloud

Explain what is the amount of 10.00% acetic acid : What is the amount of 10.00% acetic acid you would need to add to 100.0 ml of milk in order to bring the final acidity to 1.00% acetic acid

Estimate what work does the racquet do on the ball : A tennis player receives a shot with the ball (0.0600 kg)traveling horizontally at 50.0 m/s and returns the shot with the ball traveling horizontally at38.0 m/s in the opposite direction. What work does the racquet do on the ball

Speed-velocity selector has electric field of magnitude : A velocity selector has an electric field of magnitude 2500 N/C,directed vertically upward, and a horizontal magnetic field that is directed south. Charged particles, traveling east at a speed of7.27 x 103 m/s, enter the velocity selector and are ..

Explain the concentration of gold in the original sample : Duplicate 0.50 g samples of a finely powdered gold ore are digested in an HCl/HNO3 mix and evaporated to dryness. Each sample is then treated with an additional 15 mL of HCl and diluted with an additional 40 mL of water.

How many times must he lift the barbell : A man drinks a bottle of beer and proposes to work off its460kj by exercising with 20 kg barbell. how many times must he lift the barbell

Explain what is s for the boiling of c2h5oh : What is S for the boiling of C2H5OH. Use the data given below. Assume that enthalpy and entropy values are temperature independent.

Evaluate what is the tension in the cable : A traffic light, weighing 668N is hung from the center of acable of negligible weight that is stretched horizontally btween two poles that are 18.3m apart. What is the tension in the cable

This implies a flat lm-curve : If the demand for money becomes more insensitive to changes in the interest rate, equilibrium in the money sector will have to be restored mostly through changes in income. This implies a flat LM-curve.” Comment on this statement.

Explain flasks fixed with pressure gauges and small valves : 3 5L flasks fixed with pressure gauges and small valves, each contain 4 g of gas at 273K. Flask A has H2, B has He and C has CH4. Place in order of pressure

User Account

All Pages