Answer:
<h3>The answer is 19,800 J</h3>
Explanation:
The work done by an object can be found by using the formula
<h3>workdone = force × distance</h3>
From the question
force = 120 N
distance = 165 m
We have
work done = 120 × 165
We have the final answer as
<h3>19,800 J</h3>
Hope this helps you
The circuit shown is a series circuit. A series circuit is a circuit with more than one resistor where electricity flows in a single path.
A parallel circuit on the other hand, electricity flows through more than one path. A combination type of circuit, is a circuit that has both parallel and series circuits. Short circuit happens when there is no load.
The answer to your question again is series.
The matter from the explosion can reach him, hitting him. He should be able to feel that.
We can solve the problem by using conservation of energy.
In fact, initially the projectile has only kinetic energy, which is given by
![K= \frac{1}{2}mv^2](https://tex.z-dn.net/?f=K%3D%20%5Cfrac%7B1%7D%7B2%7Dmv%5E2%20)
where m is the projectile's mass while
![v=7.3 km/s=7300 m/s](https://tex.z-dn.net/?f=v%3D7.3%20km%2Fs%3D7300%20m%2Fs)
is its initial velocity.
At the point of maximum height, the speed of the projectile is zero, so it only has gravitational potential energy which is equal to
![U=mgh](https://tex.z-dn.net/?f=U%3Dmgh)
where g is the gravitational acceleration and h is the maximum height of the projectile.
Since the energy must be conserved, we can equalize K and U to find the value of h:
![\frac{1}{2}mv^2=mgh](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7Dmv%5E2%3Dmgh%20)