This table shows the weights of four different objects that are sitting on the floor
Weight (N)
25
Object
1
2
3
33
16
4
8
A person tries to lift each object with a force of 18 N, upward. Which
statement is supported by the data in the table?
A. All of the objects will move, and object 2 will accelerate upward
the fastest
B. None of the objects will move, but the normal force on all of the
objects will increase.
C. Objects 1 and 2 will not move, and objects 3 and 4 will accelerate
upward.
O D. Objects 1 and 2 will move downward, and objects 3 and 4 will
move upward

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.

What is an aquifer for science class

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