Sarah

Your automotive company is expanding into off-road and all-terrain vehicles (ATVs). As a design engineer you are considering two alternative design concepts for a new vehicle, one having three wheels and another with four.

Engineering research has shown that the three-wheeled vehicles are considerably less stable and safe overall than four-wheeled vehicles. Nevertheless, both designs would satisfy the existing safety standards for sale of each class of vehicle, so either design could be chosen without any legal problems for the company.

However, there is another factor to consider. Market research has shown that a three-wheeled version would be easier to design and produce, and would sell many more vehicles at higher profit margins than would a four-wheeled version.

Based on your interpretation of the NSPE Code of Ethics, is it ethically acceptable for you as an engineer to recommend that your company should produce the three-wheeled version, in spite of its greater potential safety risks?

I have a cost to cost stores (brand name) 410 bolt action shot gun, model 180 series E. I need a clip or a magazine for it. Can any one help me with where I can go to find one. It seems like no one has any info because the gun is extremely old. I would really appreciate it.

When our sun was first “born”, astronomers believe that it was orbited by a large disk of gas and dust that would eventually coalesce to form the planets. Before the planets formed, however, the matter in this disk would separate due to the competing forces of the gravitational pull of the sun and the outward push due to the radiation pressure of the sun’s light. To understand how these forces could cause the gas and dust to separate, assume that a dust particle is made of larger atoms and has an average density of 2500 kg/m3 and a gas particle (frozen or not) has

an average density of 800 kg/m3.

Consider a particle (could be either gas or dust) of radius R and with a reflectivity coefficient of a (note that a varies from 1 to 2... totally reflective means a = 2, totally absorbent means a = 1. You will use a when you write the radiation pressure.) If this particle is at a distance r from the sun:

 Derive an expression for the inward gravitational force on the particle due to the sun, in terms of R, r, M (the mass of the sun), and r (the density of the particle)

Astronomers are currently searching for planets orbiting around other stars; they have found over 400 “extrasolar" planets since the first one was discovered in 1995. In order to better understand foreign planetary systems, astronomers attempt to learn everything they can about our solar system. One of the most obvious features of our solar system is that the four inner planets are almost entirely composed of rock and metals, while the outer planets are mostly gas and ice (which is frozen gas). To explain this distribution of matter, astronomers look to the time before the

planets formed.

When our sun was first “born”, astronomers believe that it was orbited by a large disk of gas and dust that would eventually coalesce to form the planets. Before the planets formed, however, the matter in this disk would separate due to the competing forces of the gravitational pull of the sun and the outward push due to the radiation pressure of the sun’s light. To understand how these forces could cause the gas and dust to separate, assume that a dust particle is made of larger atoms and has an average density of 2500 kg/m3 and a gas particle (frozen or not) has an average density of 800 kg/m3.

Consider a particle (could be either gas or dust) of radius R and with a reflectivity coefficient of a (note that a varies from 1 to 2... totally reflective means a = 2, totally absorbent means a = 1. You will use a when you write the radiation pressure.) If this particle is at a distance r from the sun:

 Derive an expression for the inward gravitational force on the particle due to the sun, in terms of R, r, M (the mass of the sun), and r (the density of the particle).

 Derive an expression for the outward force on the particle due to the radiation pressure of the sun’s light, in terms of P (the total power output of the sun), r, R and a. (Note: be very careful when considering the area of the particle on which the radiation acts. It is NOT 2pr2.)

 Combine the two expressions to create an expression for the total force. Write the expression so that a positive total force points toward the sun.

 First two questions: what direction is the total force if R is very large? Examine the place of R in each term of the total force. What direction is the total force if R is very small?

 Set the total force to zero and solve for R. This is the radius of a particle for which the two forces are balanced. If a particle has a radius greater than this value, it should be pulled inward; if its radius is smaller than this value, it should be pushed outward.

 Using the values: M = 1.99 x 1030 kg P = 3.9 x 1026 W

Calculate the value of R for which the force is zero for:

 a gas particle for which a is 2 (we assume gas particles will be totally reflective)

 a dust particle for which a is 1 (we assume dust particles are totally absorbent)

 From your answers to the calculations, where do we expect that most of the gas in the early solar system ended up... inward or outward? Where should most of the dust ended up? Explain how your answers relate to the value of R you calculated.

Watch at the 38 second mark if you don't want to watch the whole thing.

http://www.youtube.com/user/NoKickingToddlersOK?fe...

What would you do if you were a parent and this happened to your child after a racial dispute?

verify by differentiation that the formula is correct.

integral (x/sqrt x^2 +1)dx = sqrt x^2 + 1 + c

Please help! This is for my calculus class so please show me exactly how you get through each step.

is an area only negative when it is under the x-axis?

algebraically, how did they go from 12/n[(9/(n+1) all over 2) - n] to 12[9/2(1+1/n)-1]

So someone just dumped this dog off in the neighborhood. (Really I watched him do it!) and so my mom said we could keep him. Now we need unique and brilliant dog name ideas.

It's a boy about a year old. Beige short hair. Wolf style eyes. Not the most brilliant dog in the world. Kind of seems like he would have been the runt of the pack. Kind of clumsy. Loves his monkey plush toy.

funny, sarcastic, ironic, descriptive, doesn't matter just throw some names at me please

A sailor in a small sailboat encounters shifting winds. She sails 2.00km east, then 3.5km southeast, and then an additional distance in an unknown direction. Her final position is 5.80km directly east of the starting point. Find the magnitude and direction of the third leg of the journey. Draw the vector addition diagram and show that it is in qualitative agreement with your numerical solution.

Please help me with this problem. I can't seem to get this one. Please show me step by step what you did to achieve the answer.

lim as x approaches infiniti of 1 divided by 2x+sinx

I know the answer is 0 but pleeeease explain to me why! I'm so confused!

Question: Find any critical numbers of the function

The problem is f(X)=X(squared) * (X-3)

I've come to the conclusion that f'(X)=3X(X-2)

and I understand why 0 is an answer but why is 2 an answer too?

I'm trying to complete and balance a few reaction. Then I'm suppose to circle the formula that is insoluble. I also have to write the net ionic equations. I know how to balance. I think I know the rules of solubility and how to write the net ionic equations.

my only problem is... I forgot how to complete the reactions! So my question is: What rules do I follow when completing a reaction?

Ex: NiSOsub4(aq) + KI(aq)

or

Ex: Ca(CHsub3COO)sub2(aq) + (NHsub4)sub3POsub4(aq)

Please help! I have a lot of these to do!

Ok so I fell in love with this english mastiff that I saw and I wanted to know if anyone who may own an english mastiff knows any info on them. How old do they live? How often do they eat? What other breeds of dog do they get along with? How big will they get? Are they easy to train? Please let me know based off of personal experiences with this breed of dog.

1. which of the following statements correctly describes the hydronium-hydroxide balance in the given solutions?

A) In bases, [OH-] is greater than [H3O+]

B) In bases, [OH-] = [H3O]

C) In neutral solutions, [H3O +] = [H2O]

D) In acids, [OH-] is greater than [H3O+]

E) In bases, [OH-] is less than [H3O+]

2. Which of the following is a neutralization reaction?

A) KCl + NaNO3 ---> KNO3 + NaCl

B) 4Na +O2 ----> 2Na(sub2)O

C) H2O + SO3 -----> H(sub2)SO4

D) HNO3 + KOH ---> H2O + KNO3

E) 2NO2 ----> 2NO + O2

3. the neutralization between Al(OH)3 and HNO3 produces the salt with the formula:

A) AlH2

B) NO(sub3)OH

C) H2O

D) Al(NO3)3

E) ALNO3

4. which of the following is a buffer system?

A) HCl and NaOH

B) H2O and HCl

C) NaCl and NaNO3

D) H(sub2)CO3 and KHCO3

E) NaCl and NaOH

5. How many milliliters of 0.400 M NaOH are required to completely nutralize 20.0mL of 0.200 M HCl?

A) 50.0 mL

B) 40.0 mL

C) 0.100 mL

D) 10.0 mL

E 20.0 mL

* Please explain + show work

Ok so I need more homework help for this essay please! I need to propose a solution to air pollution due to automobiles. I need ideas to limit air pollution imensly and it can't be anything impossible like completely get rid of them.

:) please and thank you!

Homework help please! I have to write an essay and this is my topic:

how does the automobile cause pollution?

how does the conflicts in the novel Animal Farm, associate with the conflict perspective, symbolic interactionist perspective, and functionalist perspective???

*Please explain thoroughly with plenty pf examples

POINTS!!!

1. when solutions of KCl & pb(NO3)2 are mixed, a precipitate forms. Which of the following is the balanced equation for the double replacement reaction that occurs?

A) K(aq) + NO3 (aq) --> KNO3 (aq)

B) KCl (aq) + Pb(NO3)2 (aq) --> KNO3 + PbCl (s)

C) KNO3 (aq) + PbCl2 (s) --> KCl (aq) + Pb(NO3)2 (aq)

D) 2KCl (aq) + Pb(NO3)2 (aq) --> 2KNO3 (aq) + PbCl2 (s)

E) KCl(aq) + Pb(NO3) (aq) --> KNO3(aq) + PbCl2(s)

2. what is the concentration, in m/m% of a solution prepared drom 50.0g NaCl and 150.0g of water?

A) 33.3%

B) 0.250%

C) 40.0%

D) 25.0%

E) 3.00%

*PLEASE SHOW WORK

3. Rubbing alcohol is 70% isopropyl alcohol by volume. How many mL of isopropyl alcohol arwe in a 1 pint (473 mL) container?

A) 0.15 mL

B) 70. mL

C) 330 mL

D) 470 mL

E) 680 mL

*PLEASE SHOW WORK

4. A(n)_____ is a type of colloid in which a liquid is dispersed in another liquid or a solid.

A) suspension

B) sol

C) aerosol

D) emulsion

E) foam