Recent content by kevinlikesphysics

Homework Statement An AC power supply with a peak volatge output of 200 volts, operating at 60 Hz, is connected to a 53 microFurad capacitor A) what is the difference in phase angle between the applied voltage and the current B) what is the rms current in the circuit C) what is...

I need to compare amino acid R chains relative to each other. Is there a way to figure this out with the chemical forumula or am i supposed to glance over the stuctures? Also I am finding mixed messages about polarity for each. Are these correct? thanks lab test rf...

awesome thanks ...so the conversion ratio doesn't apply at all in these cases then right?

Homework Statement I have to do a bunch of problems such as converting meter to km and cups to mililiters etc. How do i calculate sig figures for these problems for example i did 12 miles to kilometers 12 miles x 1.609 km/1mile = 19.308 km = 19 km ? do i leave the sig figs at...

How was i not putting forth effort? They are listed in my second post and I simply do not know if they are correct. I didn't ask anywhere for anyone to post me 5 facts. Your post is rude and unhelpful.

i put it has a melting point of 945 deg celcious it has a grey metal appearance it is a metalloid it was given the nickname eka silicone by dmitri ivanovich mendeleev and its atomic number is 32 are those correct?

i have to find 5 facts about germanium-72. Does the 72 atomic mass change it chemically or just the neutron weight. I am not sure what my teacher is looking for by asking for five facts. In the book it says eka silicone...does that mean silicone is made of it. Any help is greatly...

Homework Statement Can someone give me a very basic breakdown of integrals i read the manual in the tutorials sections and i just don't understand what equations have to be used for each part. Homework Equations The Attempt at a Solution

really good basic review i like it thanks

How fast do X rays travel in a vacuum? m/s

the weight of the proton is 1.67e-27 but i still get the wrong answer i got 2.04e-4 can you work it out for me?

A proton moves eastward in the plane of Earth's magnetic equator so that its distance from the ground remains constant. What is the speed of the proton if Earth's magnetic field points north and has a magnitude of 5.0 10-5 T? i got .002 m/s but it was wrong

4. [SFHS99 21.P.37.] A thin 1.00 m long copper rod has a mass of 50.0 g. What is the minimum current needed in the rod to cause it to float in a magnetic field of 1.00 T?i got 4.9 what am i doing wrong i used ma =BiL can someone tel me what I am doign wrong

no it suposed to equal that you are suposed to verify that they are equal

i had a test and i got a 55 can someone show me how to do these with the steps if possibleverify each of the folloring trigonomic identities 1) 2sin^2x - 1/sinx-cosx = sinx+cosx* did my steps wrong 2) cot^2x-cos^2x = cos^2xcot^2x didnt get an answer <no clue how to do simplify 1)...