I am a fan of combat sports such as boxing and martial arts. In competition a person might get hit and temporary lose consciousness, often for a fraction of a second before they regain their senses. I would like to know what is happening on a physiological level when this occurs.
What is...
Okay, good. I am essentially hoping to use a variable PWM and a low-pass filter as a variable DC voltage. Although, the board is also capable of digital output at +5V, +0V. Would it be sufficient to drive the relay using just a 178-ohm current-limiting resistor? In the picture, I did not...
Thanks for the help; however, I don't think I completely understand. Specifically:
I'm not sure what you mean by 'supply voltage'. Do you mean the control voltage? The SSR only has four pins, two for the control and two for the load connection. If you do mean the control voltage, I do plan...
Today I bought a solid state relay, the datasheet for which can be found here. My goal is to use it to switch 120VAC, controlled by an Arduino Uno board (with Atmega 328 microcontroller). I am very rusty since my days in EE classes, and have not worked with solid state relays at all.
In the...
"Education pays" on BLS website.
The Bureau of Labor Statistics has this page on their website: http://www.bls.gov/emp/ep_chart_001.htm.
http://www.bls.gov/emp/ep_chart_001.JPG
Source: Bureau of Labor Statistics, Current Population Survey, 2010.
This just seems very odd to me. This says...
I am not an expert on Physics and have for the past year been engulfed in work, so I am very rusty. I read a comment online recently that essentially said the laws of physics simply prevent any object from accelerating to the speed of light (infinite energy required?), but do not say that an...
The force will vary according to mass. So a 10-pound bowling ball will have twice the gravitational force ("F" in your equation) as a 5-pound bowling ball. But they will both have the same acceleration ("a" in your equation).
Gravity follows the same laws everywhere, but the actual...
What frustrates me is that it's so hard to form a real opinion without being an expert on the subject yourself. I can't trust the filmmakers or their targets, because they all have an agenda and $$ to make.
For what it's worth, I drink Colorado groundwater pretty much daily.
As people age, they are allowed to do more and more "inappropriate things". Once you hit about ~75 you can just fart/burp/blow your nose anywhere you want.
Think about it this way: whenever you move the drill in one direction, you are sacrificing room on that side. At 2/3 you are sacrificing the most room while the other side can compensate. If you go further than 2/3 you create a 'dead zone'.
Would it not be appropriate to solve a system of equations, d=1/2 * a * t^2, d = 17.91 mm, and a * t = 55 mph?
Doing this I get about 16.9 kilometers / s^2, or 1721g.
Welcome to the world. Even the smartest people eventually realize there are people who are better.
You don't have to be the best physicist, just be the best at being you.