Recent content by Tide

In how many ways can you deal four cards to four people from a deck of 16? In how many ways can you deal four cards to four people from a deck of 16 such that each receives exactly one black card?

It depends on what you mean by "solve." The OP might be looking for a curve in space or a surface or some such. However, the "natural numbers" part confuses the issue.

I am not sure what you're asking for but you would have an electric field inside the solenoid only while the magnetic field is changing.

What do you know about solenoids and what have you done so far?

Electric fields travel very fast but the electrons making up the current generally drift at very slow speeds.

Try the following: In your Equation (2) replace \sin^2 \theta with 1-\cos^2 \theta then solve for \cos \theta.

Saying that nothing can travel faster than light means that matter, energy or information cannot travel faster than light. However, some "things" can and do move faster than light. Imagine standing at the center of a circle whose radius is 186,000 miles. There is a reflecting wall on the...

Vela, Exactly! I had assumed the original poster hadn't seen the base conversion yet.

What you need to know is that \log_b b^a = a and b^{\log_b a} = a

That would be a fundamental identity for logarithms and should have been the first thing you learned about them. Basically, exponentials and logarithms are inverse functions of each other. Check with your textbook. :)

Hint: What is b^{\log_b a} ?

You made a simple algebraic mistake in the step where you solve for t. You need to divide by n*ln(1+r/n).

So to get the total force you would have to integrate over the entire surface? :)

What does theta in your Bernoulli equation stand for?

Try integrating over theta. :)