The engineers are designing a base for the pools in the ladder. The base is a square with edge lengths of 1.5 meters. A criterion for the base is that it must withstand a stress of 3,200 N/m2. In tests, a prototype of the base withstood a total force of 4,500 N before it failed. Which statement describes whether the prototype met the criterion for resisting stress? Choose the correct answer.

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up