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

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere

Question 1 of 15 2 points when doing science as inquiry, you should have some idea of what you think the final result will be. o a. true o b. false submit