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An emergency crew is using a plank as a 1st lever to raise one side of a car off the road. The fulcrum is a large block of wood. The magnitude of the load force is 5200 N and that of the effort force is 650 N; the load arm and effort arm are 0.40 In and 3.6 m, respectively. Calculate the

a) AMA

b) IMA

c) percent efficiency of the plank

Determine the GCF (greatest common factor) of each of the following and then write in factored form.

a) 3 x+15

GCF:

b) 4 x^2 + 8x

GCF:

c) 5 x^2 − 10

GCF:

d) − 7x + 21

GCF:

e) 4 x^2 y^3 + 8 x^4 y^2
GCF:

4.  Factor the following as a difference of squares.

a) x^2−25

b) x^2−169

c) 81 x^2−100

d) 64−121x^2

What is time?

Which detergent would be best suited for the membrane extraction or refolding for each of the integral membrane proteins in
the following list? For each of the integral membrane proteins listed, would you choose to extract or refold and why?
1. LamB
2. Complex I (ETC)
3. LacY
4. OmpC
5. ABC transporter
6. GPCR      

What are molecules?

What is a mole?

Plants absorb light energy and convert it into chemical energy.  If you shine only green light on a plant, do you think it will grow and convert the light into chemical energy? Explain your answer. 

A crane lifts a 400 kg crate upward with an acceleration of 3.00 m/?. Determine the force on the crane.

As quality control manager at a raisin manufacturing and packaging plant, you want to ensure that all the boxes of raisins you sell are comparable, with 35 raisins in  each box. In the plant, raisins are poured into boxes until the box reaches its sale  weight. To determine whether a similar number of raisins are poured into each box, you randomly sample 25 boxes about to leave the plant and count the number of raisins in each. You find the mean number of raisins in each box to be 33.2, with s = 2.43. Perform the 4 steps of hypothesis testing to determine whether the average number of raisins per box differs from the expected average 35. Use alpha of .05 and a two-tailed test. 

An article in the journal Applied Nutritional Investigation reported the results of a comparison of two different weight-loss programs (Liao, 2007). In the study, obese participants were randomly assigned to one of two groups and the percent of body  fat loss was recorded. The soy group, a low-calorie group that ate only soy-based  proteins (M= 4.2, s=0.75) , while the traditional group, a low-calorie group that  received 2/3 of their protein from animal products and 1/3 from plant products 
(M= 5.3, s=0.41). If sM1–M2 = 0.25, s2pooled = 0.35, n1 =10, n2 = 12 is there a difference between the two diets. Use alpha of .05 and a two-tailed test to complete the 4 steps of hypothesis testing

Please show you work and most important tell me what test to use

NO2 + OH + M > HNO3 + M

Calculate the effective bimolecular rate constant for this reaction at the surface (T = 288 K, p = 105 Pa) and 10 km altitude (T = 223 K, p = 2.6 x 104 Pa) conditions.

Jensen Inc., a graphic arts studio, is considering the purchase of computer equipment and software for a total cost of $18,000. Jensen can pay for the equipment and software over three years at the rate of $6,000 per year. The equipment is expected to last 10 to 20 years, but because of changing technology, Jensen believes it may need to replace the system in as soon as three to five years. A three-year lease of similar equipment and software is available for $6,000 per year. Jensen’s accountant has asked you to recommend whether the company should purchase or lease the equipment and software and to suggest the length of time over which to depreciate the software and equipment if the company makes the purchase.

Required:

Ignoring the effect of taxes, would you recommend the purchase or the lease? Why or why not? Referring to the definition of depreciation, what appropriate useful life should be used for the equipment and software?

Show ALL of your work
Factor each of the following as a difference of squares.

a) x^2−36

b) z^2−49

c) y^2−81

d) b^2−4

d) −w^2 +1

e) 4a^2−36

f) t^2−9

g) 5x^2−45y^2

Determine the order of M-M bond in the complex: [Mo₂(HPO₄)₄]^2-

A student measured the concentration of H2SO4 by titrating it with 3 L of NH3 at 646 torr and 305 K. The experiment revealed that 144 mL of H2SO4 was required to neutralize the NH3. Calculate the concentration of the acid in terms of normality.

p4 32 fresh orange juice contains 12:0 wt% solids and the balance water and concentrated orange juice contains 420 wt% solids initially a singe evaporation process was used for the concentration, but volatile constituents of the juice escaped with the water, leaving the concentrate with a flat taste. the current process overcomes this problem by bypassing the evaporator with a fraction of the fresh juice the juice that enters the evaporator is concentrated to 58 wt solids, and the evaporator product stream is mixed with the bypassed fresh juice to achieve the desired final concentration.

There ate 5 toy cars and 8 toy boats in Santa's bag. If 3 toys are selected at random, what is the probability they are all boats?

The minute hand on a clock is 10 mm long and the hour hand is 7 mm long. How fast is the distance between the tips of the hands changing at 6:45?

Please show all work and explain. Thanks.

Write a list of 10 crisis events that have happened to you. These events can be real or fictional, serious or humorous. Describe where each event takes place (setting), what happened, and how you responded (plot).

Let T be a relation on R x R such that (a,b),(c,d) ∈ T if and only if a + b ≤ c + d.

a. Is T reflexive? If so, prove it. If not, prove that it is not.

b. Is T symmetric? If so, prove it. If not, prove that it is not.

c. Is T transitive? If so, prove it. If not, prove that it is not.

d. Identify four numbers of [(-1, 2)]

A sample of nitrogen gas at 298 K and 745 torr has a volume of 37.42 L. What volume will it occupy if the pressure is increased to 894 torr at constant temperature?

Which property of water makes it most effective at causing erosion in a cold climate? 

ok please help me with this

Hi I need help with my homework I need to write a conclusion for this chapter I give you the name of the chapter please help me I need a good conclusion please be clear and i need it today so just copy and paste the information and please

no plagiarism, please

WRITE A CONCLUSION FOR MENDEL AND THE GENE IDEA

CHAPTER:14

CHAPTER NAME: Mendel and the Gene Idea

i need help. write a conclusion for that chapter: Mendel and the Gene Idea

i really need it today so please help me so i can copy and paste it i need 3 good paragraph

please help

The half-life of a particular radioactive substance:

1. Decreases as pressure on it increases

2. Decreases as it mass decreases

3. Increase as the temperature increases

4. Is independent of mass, temperature, and pressure

1. Solve for Principal
2. Owen is going to invest in an account paying an interest rate of 5.7% compounded continuously. How much would Owen need to invest, to the nearest hundred dollars, for the value of the account to reach $122,000 in 14 years?

∫ 6y2 + 12y .dy =  6 ∫ y2 + 2y .dy    

1. Describe the cell cycle

Define senescent. What cells put off senescence?

The average high temperature in Denver is January is 45 F. The average low is 17 F. Write a cosine function representing the temperature over a 1 day cycle that begins at the low temperature.