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...

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...

Science word problem

need help with this past paper question The measured data is summarised in the table below. Perform a linear regression analysis to determine the slope of the curve; hence, calculate...

Im not good at math at all but i need help! somebody please lol

Is this a good pay rate for telemarketing?

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 car of mass 1000 kg has its speed reduced from 81 km/h to 54 km/h by brakes producing a force of 1250 N. How long does this take? Determine the work done by the brakes on the car. Determine...

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A 49kg bicycle rider delivers an average of 0.28 hp. The mass of the bicycle is 2.1kg and the hill she is climbing is 245m tall. How much time will this take?

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...

Please answer fast

I need this answered as soon as possible I am stuck and don't know how to calculate the force. So I cannot use the formula.

A 45 kg student runs with a speed of 2.0 m/s off a horizontal ledge that is 5.0 above a swimming pool. Calculate the vertical speed of the student when she hits the water. ... Energy...

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...

T=total amount they'll revive N=number of kilograms of cans

A line with a slope of - 7 passes through the points ( - 8,10) and ( - 6,k). What is the value of k?

need the answer

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...