<h3>#1</h3>
- <em>This</em><em> </em><em>is</em><em> </em><em>happening</em><em> </em><em>because</em><em> </em><em>the</em><em> </em><em>force</em><em> </em><em>exerted</em><em> </em><em>by</em><em> </em><em>both</em><em> </em><em>of</em><em> </em><em>them</em><em> </em><em>is</em><em> </em><em>equal</em><em> </em><em>which</em><em> </em><em>is</em><em> </em><em>making</em><em> </em><em>the</em><em> </em><em>net</em><em> </em><em>force</em><em> </em><em>0</em><em>.</em><em> </em><em>And</em><em> </em><em>we</em><em> </em><em>know</em><em> </em><em>that</em><em> </em><em>when</em><em> </em><em>net</em><em> </em><em>force</em><em> </em><em>is</em><em> </em><em>0</em><em>,</em><em> </em><em>no</em><em> </em><em>movement</em><em> </em><em>takes</em><em> </em><em>places</em><em>.</em><em>.</em><em>.</em>
<h3>#2</h3>
For this let us take the force applied by karina 5 Newton and the force applied by Layla be 5 Newton...
Here, The forces are equal..
<h3>#3</h3>
- <em>Well</em><em>,</em><em> </em><em>this</em><em> </em><em>is</em><em> </em><em>happening</em><em> </em><em>because</em><em> </em><em>now</em><em> </em><em>the</em><em> </em><em>force</em><em> </em><em>on</em><em> </em><em>karina's</em><em> </em><em>side</em><em> </em><em>is</em><em> </em><em>greater</em><em> </em><em>than</em><em> </em><em>the</em><em> </em><em>force</em><em> </em><em>on</em><em> </em><em>layl</em><em>a's</em><em> </em><em>side</em><em> </em><em>making</em><em> </em><em>layla</em><em> </em><em>move</em><em> </em><em>forward</em><em> </em><em>and</em><em> </em><em>backward</em><em>.</em><em>.</em><em>.</em>
<h3>#4</h3>
Let us now the force<em> </em>applied<em> </em>by karina is 5 Newton, Force by stephanie is 5 Newton and Force by layla is 5 Newton..
Answer:
final angular velocity = 11.4 rad/sec = 108.86 rpm
Explanation:
To start with, notice that the quantities given are in various units for angle measurement (revolutions, and radians), and also different units of time (minutes and seconds). So in order to have them combined in a single equation, we need to convert them to the same type of angle and time units. If we select to keep radians as the unit of angle, and seconds for the unit of time, we need to convert:
1) the initial angular velocity of 20 rpm into radians per second using:
2) the 5 revolutions during which the flywheel is under acceleration into radians:
Now notice as well that the information we are given does not contain the time under which the flywheel is accelerated, but the angle (number of revolutions), so it would be convenient to use a kinematic relationship for accelerated rotational motion where the variable time has been reduced from the formula. We therefore choose the following formula:
where we know all the variables except for the final angular velocity .
Therefore, replacing for the known quantities, and solving for the unknown, we get:
If the answer is requested in revolutions per minute, we can multiply this result by 60 and divide it by , to obtain its equivalent : 108.86 rpm
Answer:
maximum power = 300 W
Explanation:
Ohm's law: Ohm's law state that the current flowing through a metallic conductor, is directly proportional to the potential difference applied across its end. mathematically it is expressed as,
V = IR............. Equation 1
Where V = potential difference, I = current, R = Resistance of the conductor.
If the power flowing through is gives as
W = 120I - 12I² ..................... Equation 2
To get the maximum power we differentiate of equation 2 and equate to zero
dW/dt = 0
120 - 24l = 0........................... equation 3
Making I the subject of the equation,
I = 120/24 = 5 A.
Suubstituting the value of I into Equation 2
W = 120 (5) - 12(5)²
W = 600 - 300
W = 300 W.
Therefore maximum power = 300 W
Four of them pass a point every second.
It could maybe be D which is the expansion of a liquid inside a closed tube