Study the image below.
The straw appears to "bend" because of
absorption
diffraction
reflection
refraction

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j