Answer:
D. 3 hours or more
Explanation:
The average 8- to 18-year-old spends at least D. 3 hours every day in front of a screen, performing little to no physical activity. This is because, instead of exercising and socializing with their peers, children and teenagers frequently talk, watch a lot of movies/shows, or play video games on their computers. Unfortunately, this is typically considerably more than three hours every day. Although some children still prefer physical activities over this, the bulk of the population does not.
Answer:
15.106 N
Explanation:
From the given information,
The weight of the bucket can be calculated as:
![W_b = m_bg = \\ \\ W_b = (0.730 \ kg) ( 9.80 \ m/s^2) \\ \\ W_b = 7.154 \ N](https://tex.z-dn.net/?f=W_b%20%3D%20m_bg%20%3D%20%20%5C%5C%20%5C%5C%20%20W_b%20%3D%20%280.730%20%5C%20%20kg%29%20%28%209.80%20%5C%20m%2Fs%5E2%29%20%5C%5C%20%5C%5C%20W_b%20%3D%207.154%20%5C%20N)
The mass of the water accumulated in the bucket after 3.20s is:
![m_w= (0.20 \ L/s) ( 3.20)s](https://tex.z-dn.net/?f=m_w%3D%20%280.20%20%5C%20L%2Fs%29%20%28%203.20%29s)
![m _w=0.64 \ kg](https://tex.z-dn.net/?f=m%20_w%3D0.64%20%5C%20kg)
To determine the weight of the water accumulated in the bucket, we have:
![W_w = m_w g](https://tex.z-dn.net/?f=W_w%20%3D%20m_w%20g)
![W_w = ( 0.64 \ kg )(9.80\ m \ /s^2)](https://tex.z-dn.net/?f=W_w%20%3D%20%28%200.64%20%20%5C%20kg%20%29%289.80%5C%20%20m%20%20%5C%20%20%2Fs%5E2%29)
![W_w = 6.272 \ N](https://tex.z-dn.net/?f=W_w%20%3D%206.272%20%5C%20N)
For the speed of the water before hitting the bucket; we have:
![v = \sqrt{2gh}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B2gh%7D)
![v = \sqrt{2*9.80 \ m/s^2 * 3.60 \ m}](https://tex.z-dn.net/?f=v%20%3D%20%5Csqrt%7B2%2A9.80%20%5C%20m%2Fs%5E2%20%2A%203.60%20%5C%20m%7D)
v = 8.4 m/s
Now, the force required to stop the water later when it already hit the bucket is:
![F = v ( \dfrac {dm}{dt} )](https://tex.z-dn.net/?f=F%20%3D%20v%20%28%20%5Cdfrac%20%7Bdm%7D%7Bdt%7D%20%29)
![F = (8.4 \ m/s)( 0.200 \ L/s)](https://tex.z-dn.net/?f=F%20%3D%20%288.4%20%5C%20m%2Fs%29%28%200.200%20%5C%20L%2Fs%29)
F = 1.68 N
Finally, the reading scale is:
= 7.154 N + 6.272 N + 1.68 N
= 15.106 N
<span>When two or more identical capacitors (or resistors) are connected
in series across a potential difference, the potential difference divides
equally among them.
For example, if you have nine identical capacitors (or resistors) all
connected end-to-end like elephants in a circus parade, and you
connect the string to a source of 117 volts (either AC or DC), then
you will measure
(117v / 9) = 13 volts
across each unit in the string.</span>
There is no sound in space because there is no medium to move it. However i think the big bang can still been seen in the form of background radiation but i am unsure.