Steve4Physics's latest activity

Because the temperature of the skin is greater than the temperature of the air flowing over it. Note how people living in desert regions...

Hi @sol_2001. For simplicity just consider cooling by convection. Suppose the air temperature is 25##^\circ## and your skin’s surface...

Hi @neilparker62, Here are a few additional comments - just in case the presentation will be given again. ______________ Some...

No need to apologise! I’m not familiar with. Surface Engineering so can't help much. I'll add a few questions/ comments and then...

Hi @LUFER. Your post is difficult (for me at least) to follow. Here are some comments... In the original question the phrase, "a...

How do you tell the difference between a physicist and a trade-union leader?

Yes, Thanks. I see my mistake in Post #6. I overlooked the (obvious!) fact that the pulley itself has a vertical acceleration of...

@Steve4Physics: Your post made me think of an easier way to see how ##a_y## is related to ##A_x## and ##A_y##. Imagine that the block...

If a mole is Avogadro's number, what is a guacamole?

In addition to what @TSny has suggested, you could try this... Let ##A_x## and ##A_y## be the horizontal and vertical components of M’s...

Aagh. Misread the question. Post struck-through.

Why? Nothing moves faster than 1 km/s here.

Of course, relativistic effects need to be accounted.... Edit - please ignore. misread question.

In the connected situation (S1 and S2 joined) condition 1 applies: Torque (S1) = Torque(S2) = 0 If any object - even if it is part of...