How much work is done on the weight to lift gym one time

Assignment Help Physics

Reference no: EM13341807

In an effort to pump up you decide to hit the gym and lift weights everyday of the week. Your favorite lift, which you per- form every trip to the gym, is the bench press. This lift involves lifting a 125 lb. weight straight up from chest height to full arm extension, a distance of 20 inches.

(a) How much work is done on the weight to lift it one time?

(b) If you do 3 sets of 10 in a day, what total energy do you expend on lifting, assuming a typical efficiency for energy use by the body?

Reference no: EM13341807

Questions Cloud

Explain at least weaknesses in it security : Explain at least weaknesses in IT security and identify and explain at least three weaknesses not directly related to IT security

Determine what is julies average speed on the return trip : On her return trip, she drives half the time at 43.0 and half the time at 74.0. What is Julie's average speed on the way to Grandmother's house. What is her average speed on the return trip

What is the net increase in cash and equivalents : Prepare a statement of cash flow using the indirect method. The acquisition of property and equipment is 31,083. What is the net increase in cash and equivalents and the cash and cash equivalents end of year.

Identify the type of dividend policy undertaken by olam : Recently, you joined a local brokerage firm as an equity analyst. For your first assignment, you have been tasked to assist the research team to analyse Olam International Limited (“Olam”), a company listed on SGX and one of the 30 component stock in..

How much work is done on the weight to lift gym one time : In an effort to pump up you decide to hit the gym and lift weights everyday of the week. Your favorite lift, which you per- form every trip to the gym, is the bench press. This lift involves lifting a 125 lb.

Determine the heat flow into or out of the gas : If 5.40 moles of a monatomic ideal gas at a temperature of 320 K are expanded isothermally from a volume of 1.41 L to a volume of 4.03 L

What common temperature in order to fit inside the ring : At 20 C, the diameter of the plug is 8.852 cm and that of the inside of the ring is 8.842 cm . They must both be brought to what common temperature in order to fit. What if the plug were iron and the ring brass.

Develop a plan that will enable improved management : Select an idea, improvement or opportunity that would be of benefit to a team or an organisation. This must be a concept that is suited to application and could be submitted, for approval, to senior management.

What is the angular velocity of the coil : Suppose the emf of a coil rotating in a magnetic field is zero at t = 0 , and increases to its first peak at t = 0.11 ms. What is the angular velocity of the coil

User Account

All Pages