The resultant od the horizontal forces is the driving force from the engine (answer 4). Force C. is 30N, force D. is 20N, and therefore the horizontal resulting force is 30N - 20N = 10N. This is the force which makes the car driving forward, and therefore the driving force for the engine.
The answer would be E, 1800. Why? bc if you're going 30 meters per second and trying to figure out how far you would go in a minute, you would multiply 30 x 60 bc there's 60 seconds in a minute. Giving you 1800 meters. hope this helped, have an amazing day :)<span />
Answer:
Ratio is 100:1
Explanation:
From hydraulic press formulas;
(F1/A1) = (F2/A2)
Applying this to the question, we can say that Force on slave cylinder (Fs) = F1 while Force on master cylinder (Fm) = F2 and their respective Areas as As and Am.
Now plugging it into the equation to obtain;
Fs/As = Fm/Am
Now, the question says the hydraulic system is designed to exert a force 100 times as big as the one put into it, thus;
Fs = 100 Fm
And so from the equation earlier, rearranging, we have,
Fs/Fm = As/Am. So, 100Fm/Fm = As/Am
So, Fm will cancel out and we have ;
As/Am = 100/1
Thus, the ratio of the area of the slave cylinder to the master cylinder is 100:1
Answer:
-11776.36 N
This force is attractive since both charges are of opposite sign
Explanation:
Given that
![q_1=-18.4\mu C=-18.4\times 10^{-6}C\ and\\\ q_2=53\mu C=53\times 10^{-6}C](https://tex.z-dn.net/?f=q_1%3D-18.4%5Cmu%20C%3D-18.4%5Ctimes%2010%5E%7B-6%7DC%5C%20and%5C%5C%5C%20q_2%3D53%5Cmu%20C%3D53%5Ctimes%2010%5E%7B-6%7DC)
Distance between the spheres = 2.73 cm =0.0273 m
where K is Coulomb's constant = ![9.10^ 9 [N.m^2 /C^2]](https://tex.z-dn.net/?f=9.10%5E%209%20%5BN.m%5E2%20%2FC%5E2%5D)
According to coulombs law we know that force between two charges is given by
![F = \frac{kq_1q_2}{r^2}](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7Bkq_1q_2%7D%7Br%5E2%7D)
![F = \frac{(9\times10^9)\times (-18.4 \times 10^-^6)(53 \times 10^-^6}{0.0273^2)} \\= -11776.36N](https://tex.z-dn.net/?f=F%20%3D%20%5Cfrac%7B%289%5Ctimes10%5E9%29%5Ctimes%20%28-18.4%20%5Ctimes%2010%5E-%5E6%29%2853%20%20%5Ctimes%2010%5E-%5E6%7D%7B0.0273%5E2%29%7D%20%5C%5C%3D%20-11776.36N)
This force is attractive since both charges are of opposite sign
Answer:
An online UPS.
Explanation:
An online UPS is a type of uninterruptible power supply uses AC power to continuously charge its battery, while also providing power to devices through the battery. It combines the inverter and rectifier to provide power to the alternating current (AC) load while supplying alternating current (AC) power during an outage to the load through the inverter.
Basically, an uninterruptible power supply unit is used to provide constant power supply to an electrical device, especially during a power outage.