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The work is Work= FD= 40x18= 720 Joules. The power is W/seconds = 720/4= 180 Watts.
You will need a calculator: 5 to the power of 180 means five times itself 180 times.
1.007500^180 = 3.838043267
100*180/600 = 30%
50% of 180 = (convert percentage to fraction) 1/2 * 180 = 90
The power involved would be 30 watts. This can be calculated by dividing the work done (1800 J) by the time taken (1 minute = 60 seconds).
The work done by an object is calculated using the formula: work = force x distance. In this case, the work done would be 60N x 3m = 180 Joules. So, the work done by the object would be 180 Joules.
The work is Work= FD= 40x18= 720 Joules. The power is W/seconds = 720/4= 180 Watts.
The efficiency of the machine is calculated by dividing the work output by the work input and then multiplying by 100%. In this case, the efficiency is (140 / 180) * 100% ≈ 77.78%.
The work done by the mother lifting each baby is given by the formula: work = force x distance. In this case, the force is the weight of each baby (90 N) and the distance is 1 meter. Therefore, the work done for each baby is 90 N x 1 m = 90 joules. Since she has two babies, the total work done by the mother is 90 joules x 2 = 180 joules.
I suggest you use the definition of work (work = force x distance), replace the numbers you know, and solve for force.
He used a force such that its component in the upward direction was 225 Newtons.
180
1 Watt means 1 Joule per second, so 60 watts means 60 Joules per second. A light bulb that burns energy at that rate for 3 seconds uses 180 Joules.
approx,--180 hp
The amount of work done is calculated by multiplying the force applied by the distance moved in the direction of the force. In this case, the work done is 120 N x 1.5 m = 180 Joules.
The power required to move the bag of books can be calculated by dividing the work done (12900 J) by the time taken (3 minutes = 180 s). So, the power required is 71.67 watts.