Recent content by SaRaH...

Homework Statement I think I've got part of this question but it's multiple choice and nothing that I've got matches any of the options we were given. I'd really appreciate it if you could help me out. A straight, vertical aluminium bar, 1.0-m in length and 12.5-mm x 4.8-mm in cross section...

I haven't been able to try all parts of this question yet as I've been running into problems fairly near the start. I've asked for help with it but have just been told 'use the ideal gas law' which is what I tried to do but can't seem to get it right. We have been given answers to parts a, b...

Do you know De Morgan's laws? They should help you work this out. (A + B)' = A'B' (AB)' = A' + B' Try drawing logic gates for each of those and they'll show you how else your function could be represented.

So rather than using the for loop that I had: for (int k = 0; k <= 31; k++) { /*if (j&1<<k==1) { int p = k; cout << p;*/ } } Would it make more sense to use something like this? for (int k = 0; k <= 31; k++) {if...

I have been trying to write a program whose function is to find all of the prime numbers between 0 and n using the "Sieve of Eratosthenes" method. (http://en.wikipedia.org/wiki/Sieve_of_Eratosthenes) using bit manipulation and bit arrays and the print out the number of primes found, the first...

The question is as follows: A compound contains only carbon, hydrogen and oxygen. When 1g of the compound is reacted completely with oxygen, 2.2 g CO2 and 1.2 g H2O are obtained. The molar mass is close to 60. What is the molecular formula? I first wrote the equation: compound + O2 = CO2...

We have been given this as a sample exam question. For a car store a small model car (75kg) is hung from the ceiling. The model is hanging on an elastic spring with force constant 1500 N/m. The model is oscillating 10 times per second with an amplitude of 0.02 m. (Assume a zero-phase shift)...