7. Allison is walking along the beach and sees a sand castle. She wants to place something on top of the sand castle, but she is worried about putting too much force on it. If she puts too much force on the sand castle, it will break. It takes 5000 N to smash the sand castle. The pressure of the items she places on the sand castle is 1200 Pa and the area of the sand castle is . Does Allison break the sand castle? Explain why based on your calculations. 2m * 3m

If y gets smaller as x gets bigger and y have an relationship?

Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s