Which of these describes the factor that has the greatest effect on surface currents and explains why?

a: the wind's energy, because the wind drives the surface currents

b: the moon's gravity, because the tides control the surface currents

c: the seafloor features, because the surrounding seafloor determines the surface currents

d: the differences in salinity, because water moving from larger to smaller levels of salinity causes surface currents

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?