A roofer and an apprentice are roofing a newly constructed house. In one day, the roofer completes 1 3 of the job and the apprentice completes 1 4 of the job. How much...

I can only make \$1180 a month as a substitute teacher. At location A I make \$98 a day, location B \$85, and location C \$95. What is the least amount of days I could work a month while working at each...

A wagon is pulled by a force of 60 pounds on the handle at an angle of 45 degrees to horizontal. Find the work done in moving the wagon 50 feet up a 15 degree hill?

On a bi-weekly basis 84 hours consists the pay period. Each shift is 12 hours. 2 shifts from 8 am to 8 pm 2 shifts from 8 pm to 8 am (each 4 shifts is called a swing) (Then 4 off,...

A certain horse can maintain 1.0 hp of output for 2.4 hours with an efficiency of 72%. The horse is pulling a 220 kg object along a horizontal ground. The coefficient of kinetic friction between the...

block of mass 10 kg is resting on a fixed wedge in a cart moving with 10m/s towards right. Take initial velocity of wedge with respect to cart zero. Find work done by normal force on block in 2 second...

A force of 455 N is exerted in pulling 15 m of rope using a pulley system to lift a 935 N object 5 m. What is the efficiency of the system?   ...What is the difference between Work in...