If an electric train is travelling south, which way is the smoke going?

State law of floatation

Why do the pvc plastic wells used in this weeks elisa need to be sticky on the inner walls and how may your results change if a different non-adherent plastic was used instead?

The resistivity of iron is 1 x 10 - 7 Ωm. The resistance of a iron wire of particular length and thickness is 1 ohm. If the length and the diameter of wire both are doubled, then the resistivity in Ωm will be

What can be said about q and k immediately after an increase in temperature exothermic?

The sun looks like a cloud of hot steam is exploding from its surface. What is the most likely explanation. A. Solar maria B. Sunspots C. Coronal mass ejections D. Impact basins

What happens when a body of cold air approaches a body of warm air

Should we focus on the p-value instead of the alpha level?

A cheetah spots a thomson's gazelle, its preferred prey, and leaps into action, quickly accelerating to its top speed of 30 m/s, the highest of any land animal. however, a cheetah can maintain this extreme speed for only 15 s before having to let up.

A vertical spring with a spring constant of 430 N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 2.

If an electric train is travelling south, which way is the smoke going?