Which is an example of convection?

in a mountain forest, the sun heats up the ground.
on a hot day, amaya pours water on her face to cool off.
at the beach, stephan’s feet get hot walking across the sand.
above the sea, warm air rises, cools, and sinks.

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 3.00 ms . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?

Which substance partical has negligible massand travels around outsidethe nucleus