3 years ago

A machine has an efficiency of 70%. How much work dose the machine do when 20,000 J of work is done on it

1 answer:

3 0

If the machine works at a 70% efficiency it must complete 14,000 work out of the 20,000

You might be interested in

inna [77]

Answer:

532 millimeters of mercury

Explanation:

In order to convert the pressure from atm to millimeters of mercury (mm Hg), we should remind the conversion factor between the two units:

1 atm = 760 mm Hg

Therefore, we can solve the problem by setting up the following proportion:

$1 atm : 760 mmHg = 0.700 atm : x$

Solving for x, we find

$x=\frac{(760 mmHg)(0.700 atm)}{1 atm}=532 mmHg$

5 0

3 years ago

White raven [17]

The Answer is= 7.8 x 10^4

7 0

2 years ago

Dimas [21]

D. they react with oils and fats

5 0

2 years ago

Elena-2011 [213]

Answer:

Explanation:

Because we need clean water to obtain a healthy diet, need oxygen which plants provide through photosynthesis and soil is important for food.

7 0

2 years ago

bearhunter [10]

The velocity of the object will change, thus changing its position.

5 0

2 years ago