The fact that sand gets vely hot but also cools quickly illustrates which of the following? a. the sun heats everything equally b. being near water makes sand cold. c. heating and cooling are similar processes d.substances have differing abilities to retain heat.

The fact that sand gets very hot but also cools quickly illustrates that substances have differing abilities to retain heat.

So the correct answer should be D.

Hope this helps,

Davinia.

D.Substances have differing abilities to retain heat.

The pipe has a cross-sectional area of

π (0.0100 m)² = 0.000100π m² ≈ 0.000314 m²

Each second, one such cross-section of water travels a distance of

(2.33 m/s) • (1 s) = 2.33 m

so that, per second, the pipe carries

(2.33 m) • (0.000100π m²) = 0.000233π m³ ≈ 0.000732 m³

of water into the tank each second. Put another way, 2.33 m of the pipe holds around 0.000732 m³ of water.

Divide the total volume of the tank by this rate:

(1.00 m³) / (0.000233π m³/s) ≈ 1366.14 s ≈ 1370 s

or about 22.8 min, or about 0.379 hr, etc.