The length ℓ, width w, and height h of a box change with time. at a certain instant the dimensions are ℓ = 7 m and w = h = 9 m, and ℓ and w are increasing at a rate of 8 m/s while h is decreasing at a rate of 6 m/s. at that instant find the rates at which the following quantities are changing. (a) the volume. 774 correct: your answer is correct. m3/s (b) the surface area. 352 correct: your answer is correct. m2/s (c) the length of a diagonal. (round your answer to two decimal places.) 5.09 correct: your answer is correct. m/s

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.