Recent content by UseAsDirected

Okay, thank you. Printed that out, looking forward to some other responses.

Hello, I put two strips of cellophane tape adjacent to each other adhered onto a table. When I pull them both apart, they repel each other, both insulators ripped electrons from the wood. When I stack two strips of tape on top of each other on a table, rip the combined bundle off the table...

Thank you, that helps a lot. I am printing your response, and looking again at the Wikipedia summaries. Now, why can't you compare carbon-14 to nitrogen? Is it because the sample can already have nitrogen in it, contaminating it, which invalidates the ability for it to be aged? Is it...

Hello, Are there any anthropologists, archaeologists, or geologists around on this board for help? I am trying to teach myself about radioactive decay via beta emission whereby a neutron spontaneously transmutes into a proton, releasing an electron. But, I do not understand the practical side...

Okay, thank you.

Hello, I am trying to fully grasp the transmutation of nitrogen into radiocarbon (radiocarbon or carbon-14) via gamma collision high in the atmosphere But, I don't because I cannot whether something also happens to the electron. The canonical description is thus. High energy gamma particles...

Yes, but there is also a force of 5 Newtons pushing to the right (on block one side). The 3 Newton force is pushing leftward on block two.

Hello, Block one is the left block and block two sits to its right. Do you mean that this is wrong, too? 'F_12 = m2*a = [ m2 / (m1 + m2) ] * (F_right - F_left) = 1.5 Newtons. ' 1.5 Newtons is the solution at the back of the book. Thanks.

Homework Statement A small mass (1 kg) sits next to a larger mass (3 kg) on a table. A force of 5 Newtons pushes from left to right on the system while a force of 3 Newtons pushes from right to left on the system. Am I justified to conclude that the net force on the larger block has magnitude...

Why? Because a thin condensed matter film forms on ice, and that variable makes the situation different?

Thank you. I watched the curling video and I found a contradiction (or, I am stupid, likely). The curling block, if it has a flat bottom, has more contact area and runs slower than if it has less surface area. I have done experiments that show that contact area does not affection friction...

Hello Khashishi. Will a heavier bobsled come down faster than a lighter one even though both sleds are exactly the same?

Yes, this is a static friction tipping experiment. Students claim heavier block slips at a lower angle. I will discuss tomorrow with the laboratory manager about your second recommendation, then replicate the experiment myself. Thanks. Seems like reality is not so simple as theory.

Right, yes, thank you.

Sorry to inundate you with this. So, a student of mine claims that when his group does the blocks-on-ramp experiment, the heavier block slides off first (i.e., at a lower angle). I said this cannot be possible. This goes against everything I know. They taped heavy washers onto one block but...