Find the work done by friction

Reference no: EM13250867

You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, during which time the refrigerator moves a distance of 2.9 mat constant velocity.

(a) What is the total work (by all forces) done on the refrigerator?

(b) What is the work done by friction?

Reference no: EM13250867

Questions Cloud

Find the density of the cork : A large piece of cork weighs 0.295 N in air, he spring scale reads 0.903 N. Find the density of the cork

What is the optimal daily profit : Profits for regular soft drink are $3.00 per case, and profits for diet soft drink are $2.00 per case. What is the optimal daily profit?

Explain the ratio of oxygen isotopes : The ratio of oxygen (Oxygen-16 and Oxygen-18) isotopes is measured and used to determine the approximate temperature during the time that part of the ice core was formed. This method is one example of a proxy. In a few sentences, explain what a pr..

What is the maximum profit : Profit for each big shelf is $300 and for each medium shelf is $150. What is the maximum profit?

Find the work done by friction : You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, What is the work done by friction

Give numerical values for the step heights at the interface : A window is etched through a 500 nm thick oxide on a [100] silicon wafer. The wafer is re-oxidized at 1100 °C using wet oxidation to grow a 750 nm thick film inside the window. Draw a cross-section of the wafer following the second oxidation.

Calculate the tension in string when ball at top its path : A ball on the end of a string is revolved at a uniform rate ina vertical circle of a radius 72.0cm. calculate the tension in the string when the ball isat the top of its path

Calculate amount of blood that has moved through the body : If blood flows at a rate of 5 L/min for 3.5 minutes and then 4.5 L/min for 2 minutes, calculate the amount of blood that has moved through the body over the whole time period.

Find out the molar internal energy : Determine the molar internal energy (kJ/mol) of HCl (B = 10.59 cm-1 and ? = 2886 cm-1) under standard thermodynamic conditions. For the vibrational part, use N = nNa.

User Account

All Pages