N discussing engines, the ratio of output work to input work expressed as a percentage is called
1 answer:
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Answer:
<h3>The answer is 8.2 kg</h3>Explanation:
The mass of the object can be found by using the formula
f is the force
a is the acceleration
From the question we have
We have the final answer as
<h3>8.2 kg</h3>Hope this helps you
Answer:
848.5 J
Explanation:
We are given that
Height,h=12 m
Force,F=110 N
We have to find the work done .
We know that
Work done,W=
Using the formula
W=
W=848.5 J
Hence,the work done=848.5 J
Explanation:
It is given that,
= -40 mi/h,
= -40 mi/h
The negative sign indicates that x and y are decreasing.
We have to find . Equation for the given variables according to the Pythagoras theorem is as follows.
Now, we will differentiate each side w.r.t 't' as follows.
or,
So, when x = 4 mi, and y = 3 mi then z = 5 mi.
As,
=
=
= 52
Thus, we can conclude that the cars are approaching at a rate of 52 mi/h.