Recent content by m00nbeam360

Thanks for the help! So is it really just (5.957 * 10^-4 Wb/m^2)/ (0.65 s)? Seems too easy.

Homework Statement The magnetic field strength at the South Pole is around 66μT, and magnetic field lines point out of the Earth perpendicular to the surface. The sled is a metal square of side 0.95 m (with non-conducting wooden slats in between). What is the magnetic flux through the sled...

Sure, so if the net force is zero, then would I need an equation using the acceleration? Thanks for your help.

What about if I used the equation Fnet = m * a, which would be 1.6*10^-9?

Would there only be one force against it towards the surface of the moon? Or is there also one from the moon pointing towards the grain?

Whoa, got .707 now, thanks. So then is everything else correct?

Homework Statement Three charges, each of magnitude 2 nC, are at separate corners of a square of edge length 1 cm. The two charges at opposite corners are positive, and the other charge is negative. Find the force exerted by these charges on a fourth charge q = +3 nC at the remaining (upper...

Homework Statement How much charge in Coulombs is required to levitate a motionless grain of dust 10 cm above the surface of the moon? Assume the dust grain is a point mass with mg = 1*10^-9g. The gravitational acceleration at the surface of the moon is 1.6m/s^2. Assume charge on the surface...

Wait, sorry, it said that 38 wasn't correct for the upper limit. Is there a reason that the answer wouldn't be 38? Because that now makes perfect sense that it would be 10-38,38-66, etc. :/

Here's the (assumed correct) sorted list: 10 15 15 28 30 30 33 40 45 45 45 45 45 46 50 50 50 52 55 55 55 58 60 60 65 65 65 65 65 65 65 65 68 68 70 70 70 70 70 73 75 75 75 75 75 75 78 80 80 80 82 85 85 85 90 90 90 90 95 95 95 99 100 105 115 120 120 125 125 137 140 145 200 As shown in the image...

Hmm, well, I would guess that they would need to be the same size? This is a problem from chapter 2 of the book, so it shouldn't be too complicated. Webassign said that the class width is correct (28), and that 10-38 for the first class is the right set for limits.

Hmm, okay, so it looks like there are 73 numbers in the list. I found the class width by subtracting the smallest data value from the largest and dividing by 7 (200-10)/7, so around 28. From what I can tell, it looks like 10 is the smallest data value in the list, so I would first add 28 to 10...

Oh, I'm sorry, I forgot to mention that the problem specifies to split it into 7 classes.

I have a list: 85 45 75 60 90 90 115 30 55 58 78 120 80 65 65 140 65 50 30 125 75 137 80 120 15 45 70 65 50 45 95 70 70 28 40 125 105 75 80 70 90 68 73 75 55 70 95 65 200 75 15 90 46 33 100 65 60 55 85 50 10 68 99 145 45 75 45 95 85 65 65 52 82 Sorry for the poor formatting, but I created a...

Hi there, I'm trying to create a BPM (beats per minute) calculation with virtual conducting, having taken coordinates from the Kinect's system. The idea behind it is that the Kinect will record coordinates from the movements of the hand gestures and calculate average velocities of the first...