The heaviest invertebrate is the giant squid, which is estimated to have a weight of about 2 tons spread out over its length of 70 feet. What is its weight in newtons.

Write in words how to read each of the following out loud.
a. ${\displaystyle \{x\in R^{\prime }\mid 0<x<1\}}$
b. ${\displaystyle \{x\in R\mid x\le 0\text{or}x\Rightarrow 1\}}$
c. ${\displaystyle \{n\in Z\mid nisafactorof6\}}$
d. ${\displaystyle \{n\in Z\cdot \mid nisafactorof6\}}$

A stunt man whose mass is 70 kg swings from the end ofa 4.0 m long rope along thearc of a vertical circle. Assuming that he starts from rest whenthe rope is horizontal, find the tensions in the rope that are required to make him follow his circular path at each of the following points.
(a) at the beginning of his motion N
(b) at a height of 1.5 m above the bottom of the circular arc N
(c) at the bottom of the arc N

A 30.0 kg block is resting on a flat horizontal table. On topof this block is resting a 15.0 kg block, to which a horizontal spring is attached. The spring constant of the spring is 325 N/m. The coefficient of kinetic friction between the lower block and the table is 0.600, and the coefficient of static friction between the two blocks is 0.900. A horizontal force is applied to the lower block. This force is increasing in such a way as to keep the blocks moving at a constant speed. At the point where the upper block begins to slip on the lower block,determine (a) the amount by which the spring is compressed and (b) the magnitude of the force F.

Starting with an initial speed of 5.00 m/s at a height of 0.300 m, a 1.50 kg ball swings downward and strikes a 4.60kg ballthat is at rest, as the drawing shows. a. using the principle of conservation of mechanicalenergy,find the speed of the 1.50 kg ball just before impact b. assuming that the collision is elastic, find the velocities( magnitude and direction ) of both balls just after thecollision c. how high does each abll swing after the collision, ignoringair resistance?

1.) Question: The molecular formula C2H4O can be converted into three-line bond (Kekule) structures that are consistent with valence rules. Which one of the following Kekule structures is not consistent with valence rules? Explain why the structure you chose is not consistent with valence rules.
a) 
b) 
c) 
d) 
2.) Question: Propose a structure for a molecule that meets the following description. Contains one sp3 hybridized carbon and two sp2 hybridized carbons.
3.)Equation 2-1: Refer to the following equation to answer the questions below. Place the letter corresponding to the correct answer in the blank.
4.) Refer to equation 2-1. Will this reaction take place as written? Explain.
5.) Put a box around all the Lewis acids in the group of compounds below.

$\{\begin{array}{l}2x-y=9\\ 2x+7y=17\end{array}$

The flatbed trailer carries two 3000-lb beams withthe upper beam secured by a cable. The coefficients of static friction between the two beams and between the lower beam and the bed of the trailer are 0.25 and 0.30, respectively. Knowing that the load does not shift, determine (a) the maximum acceleration of the trailer and the corresponding tension in the cable, (b) the maximum deceleration of the trailer.