Apr 7

The elevator and passengers have a mass of 5500 kg. After a stop at the thirteenth floor, the elevator accelerates upward uniformly at 1.0 m/s^2 until it is rising at 2.0 m/s. What is the magnitude of the net force acting on the elevator as it accelerates?

Draw a free body diagram about the elevator and sum vertical forces

So T - m*g = m*a so T (net force) = m*(g + a) = 5500*(9.8 + 1.0) = 59400N

Apr 1

I just want to build a company website that shows our products, without actually taking orders or payment online. Just a website with some pictures, descriptions, contacts, etc…

I want to use Dreamweaver but I’ve never built a page before. Does it take long to learn and do it or should I find someone else? Because this needs to be done in a few days…

DreamWeaver is not a programming or web development language, it’s an IDE.
Using DW is just like using any other window-based application, you just need to understand the menu function and what its dialog boxes do.
The simplest way to create a webpage is to do it in Word then ‘Save As…’ webpage (.htm or .html), that’s it. Now, all you need is a web. Just search the net on the best deal for "web hosting" then buy/register a "domain name" for your company website.
If you want to learn more about webpage design have a search on the following:
1. HTML/DHTML/XHTML
2. JavaScript
3. CSS
4. ASP[VB or C#]/PHP
5. Flash

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