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A 100N block lies on a frictional surface. A force of 50N was applied horizontally where the block had moved 5 m from the
1. 1 answer
2. 289 views
a ship, leaving its port, sails due north for 45.0km and then 60.0km in a direction 60o east of north. determine the location of
1. 5 answers
2. 1,425 views
a woman on the ground sees an airplane climbing at an angle of 35o above the horizontal. she gets into her car and by driving
1. 0 answers
2. 443 views
Place the digits in each square so that each of the diagonals adds to 26 and also the four corners add to 26
1. 1 answer
2. 256 views
Evaluate the integral using the indicated trigonometric substitution.∫8/(x^2(sqrt(x^2−9))dx and x=3sec(θ)
1. 1 answer
2. 409 views
a local hamburger shop sold a combined of 817 hamburgers and cheeseburgers on wednesday? there were 67 more cheeseburgers sold
1. 1 answer
2. 493 views
Depreciation is the decrease or loss in value of an item due to age, wear, or market conditions. We usually consider
1. 1 answer
2. 2,105 views
A bicycle with 18-in.-diameter wheels has its gears set so that the chain has a 6-in. radius on the front sprocket and 3-in.
1. 1 answer
2. 2,436 views
Find the area of a sector with a central angle of 5.38 rad in a circle of radius 2.7 mi.
1. 1 answer
2. 670 views
An electric field does 14 J of work on a 0.0008 C charge.What is the magnitude of the voltage change? Answer in units of V. The
1. 1 answer
2. 2,386 views
In a thundercloud there may be an electric charge of 60 C near the top of the cloud and −60 C near the bottom of the cloud.If
1. 2 answers
2. 1,517 views
A strong lightning bolt transfers about 27 C to Earth.How many electrons are transferred? The elementary charge is 1.60218 ×
1. 3 answers
2. 3,106 views
which man served as one of south carolina's first two united states senatorsa) aedanus burke b) ralph lzard c) william smith d)
1. 8 answers
2. 1,819 views
1) where did reprentatives from all parts of south carolina first meet to voice their opposition to the oppressive british acts?
1. 12 answers
2. 3,584 views
describe the primary economic activity for each of the three colonial regions:The new England colonies, the middle colonies, and
1. 1 answer
2. 641 views
in the preparation of the standard curve for protein analysis, 50mg BSA(bovine serum albumin) dissolved in water to a final
1. 1 answer
2. 817 views
What weight of Ca(OH)2 is necessary to prepare 3,500ml of 0.7M of Ca(OH)2 solution?
1. 1 answer
2. 604 views
Using 0.1M phosphate buffer, pH 7.2, prepare 25ml each of the buffer solutions with the following concentrations at pH 7.2:1.
1. 1 answer
2. 977 views
In protein precipitation, two liters of 5mM buffer solution with pH 5.2 is needed in the isolation of albumin. Which among the
1. 1 answer
2. 2,248 views
which is a better cleansing agent, a 70% alcohol or a 40% alcohol?
1. 1 answer
2. 383 views
a convex lens of an optical instrument needs to form an inverted image that is 4 times smaller than the object. how far from the
1. 0 answers
2. 500 views
an unknown alcohol reacts with sodium salt but further tests show the compound to be an aliphatic hydrocarbon. what structural
1. 1 answer
2. 509 views
theoretically, how much iodoform could be prepared from 25ml of 95% ethanol(sp. gr. 0.79)?
1. 3 answers
2. 524 views
why would acyl halides give higher yields of amides compared to carboxylic acids or esters on reaction with NH3?
1. 1 answer
2. 907 views
why should excess alkali be avoided in the ferric chloride test for acetic acid and benzoic acid?
1. 2 answers
2. 3,018 views
Why do alcohols that show little tendency to dissolve in water appear to dissolve readily in 85% phosphoric acid? Would you
1. 1 answer
2. 795 views
The aliphatic alcohols and ethers are isometric; seven structures may be written for the molecular formula, C4H10O. if you were
1. 1 answer
2. 509 views
theoretically, how much iodoform could be prepared from 25ml of 95% of ethanol(sp.gr. 0.79)?
1. 1 answer
2. 474 views
an unknown alcohol reacts with sodium salt but further tests show the compound to be an aliphatic hydrocarbon. what structural
1. 2 answers
2. 498 views
does 2-napthol soluble in sodium hydroxide? in water? in sodium bicarbonate?
1. 1 answer
2. 585 views
does p-chlorophenol soluble in sodium bicarbonate?
1. 1 answer
2. 637 views
The cost cc (in dollars) for the fuel and maintenance of a go-cart is given by c=10x+900c=10x+900, where xx is the number of
1. 1 answer
2. 693 views
A 751 kg block is pushed on the slope of a 30◦frictionless inclined plane to give it an initial speed of 50 cm/s along the
1. 1 answer
2. 810 views
what action did spain take to prevent the Mexican war of independence from spreading to texas
1. 1 answer
2. 1,118 views
what questions might steph Austin have asked himself before trying to solve a problem
1. 1 answer
2. 539 views
Why are the oldest rocks on earth on continental crusts?
1. 1 answer
2. 492 views
Chris can be paid in one of two ways. Plan A is a salary of $380 per month, plus a commission of 9% of sales. Plan B is
1. 2 answers
2. 2,621 views
zeros are real number? true or false
1. 2 answers
2. 435 views
the seat of real number is the union of the set of irrational number true or false?
1. 1 answer
2. 557 views
a wire whose length is at most 114cm,is bent to form a rectangle.If the length of the rectangle is 5cm longer than the width,
1. 1 answer
2. 706 views
the largest among three positive consecutive odd numbers is greater than the sum of -4 and the product of 3 and the smallest
1. 1 answer
2. 571 views
ANNIKA HAS A SOCK FILLED WITH 3 RED MARBLES AND 5 GREEN MARBLES. WHAT IS THE PROBABILITY OF HER CHOOSING TWO RED MARBLES WITH
1. 1 answer
2. 779 views
Elimination method or substitution method.1. 3/5x = 1/2y + 11 2. 3x + 8y + 13
1. 1 answer
2. 433 views
A restaurant offers seven different main courses,,eight types of drinks and four kind of desserts. How many different meal
1. 1 answer
2. 2,006 views
Two hot air balloons are in flight above a field. The first Balloon is 30 meters above the ground rising 25 meters per minute.
1. 3 answers
2. 832 views
Given Parallelogram ABCD with AB=(3x-5)cm, BC=(2y-7)cm, Cd=(x+7)cm, AD=(y+3)cm
1. 4 answers
2. 1,080 views
the word "proof" on alcoholic beverages is defined as twice the percentage by volume. How many ml of alcohol are in a one-liter
1. 1 answer
2. 945 views
how much solute are present in a solution that contains 100.0g of water, and is 9.0% by weight sodium bicarbonate?
1. 1 answer
2. 480 views
how many grams of potassium nitrate are needed to prepare 250.0ml of a 0.03M potassium nitrate solution?
1. 2 answers
2. 1,040 views
calculate what volume of sulfuric acid solution(specific gravity=1.07;and containing 10%sulfuric acid by mass)contains 18.50g of
1. 1 answer
2. 938 views
what volume of a 0.20M potassium sulfate solution contains 57g potassium sulfate?
1. 1 answer
2. 710 views
The hardness of water (hardness count) is usually expressed as parts per million (by mass) of calcium carbonate. What is the
1. 3 answers
2. 7,277 views
A bottle of a certain ceramic tile cleanser, which is essentially a solution of hydrogen chloride, contains 130 g of HCl and 750
1. 4 answers
2. 4,867 views
find the x-intercepts, f(x)=-9x^2-48x-64
1. 1 answer
2. 919 views
amara rode her bicycle 8 miles in 0.5 hours.what was the average rate that she rode her bicycle in miles per hour?
1. 2 answers
2. 1,131 views
1. Use a graph to estimate the limit. Use radians unless degrees are indicated by θ°. (Round your answer to four decimal
1. 1 answer
2. 1,616 views
Sam is one-third as old as his brother. In six years Sam will be one-half as old. How old is Sam now?
1. 2 answers
2. 700 views
Ashley bought a circular rug for her room. the rug has a diameter of 9 feet. Her room is rectangular-shaped and measures 12 feet
1. 1 answer
2. 695 views
Does anyone know how to solve for thisSuppose that a principal of a local high school tracks the number of minutes his students
1. 1 answer
2. 1,393 views
When measuring the volume of a tennis ball, your water level rose from 50ml to 68ml. What is the volume of the ball? I don't
1. 1 answer
2. 407 views
A floor refinishing company charges $1.91 per square foot to strip and refinish a tile floor for up to 1000 square feet. There
1. 0 answers
2. 902 views
: Use the formula from Part I to find the midpoint of the segment with endpoints at (-2, -1) and (0, 9). Show your work.
1. 1 answer
2. 790 views
if 15 grams of ethane gas c2h6, reacts with 128 g oxygen un a combustion reaction, how many moles of water can be produced?
1. 1 answer
2. 739 views
30 chocolates in a bowl. 12 are dark chocolate, 8 are white chocolate and 10 are coffee. what is the chance of getting a coffee
1. 2 answers
2. 606 views
how would you solve14 = 0.9x(x - 6)
1. 0 answers
2. 377 views
suggest, create, predict suffixadj, noun, adv, verb
1. 1 answer
2. 408 views
abuse suffixadj, noun, adv, verb
1. 1 answer
2. 796 views
attract suffixesof adj, noun, adv, verb
1. 1 answer
2. 610 views
Luanne estimates the sum of 39 + 15 is about 40 + 15, or 55. Jacob estimates the sum of 39 + 15 is 40 = 20 or 60 which one is
1. 4 answers
2. 1,872 views
find the two numbers whose sum is 10, if the product of one by the cube of other is a maximum.
1. 1 answer
2. 3,293 views
express the repeating decimal 10.232323 as a ratio of two integers
1. 1 answer
2. 1,495 views
Go to a local library; collect a sample of books consisting of the ages of book (based on copyright dates). Plan and describe
1. 2 answers
2. 5,419 views
how many grams of cacl2 are needed to prepare 6.00L of a 0.400M CaCl2 solution
1. 1 answer
2. 969 views
What is the discriminant of the polynomial below?4x2 + 4x + 1 A. 0 B. -4 C. -12 D. 32
1. 1 answer
2. 1,609 views
In a television tube, the electron travels from an electron gun to the screen 0.45m away in 6.0×10exponent-9seconds. If the
1. 0 answers
2. 1,062 views
Here are some half-lives for different isotopes of bismuth (Bi):Bi-211 — 2.1 minutes Bi-212 — 60.6 minutes Bi-213 — 45.7
1. 4 answers
2. 803 views
Four students, Rick, Robin, Ryu, and Royare registered for the same class and attend inde pendently of one another, Rick 96.5%
1. 0 answers
2. 480 views
Which of the following statements are true about chemical reactions?Check all that apply. A. Reactants are on the right when
1. 1 answer
2. 3,538 views
Shoe companies imbed unique designs on bottom of the sneakers they manufacture.what is the made n purpose? A to increase
1. 3 answers
2. 678 views
roetopodsaoenrfir need to unscramble for a math paper
1. 0 answers
2. 401 views
Accrued salaries 1Bill’s Company Partial Worksheet For the Year Ended December 31st, 2012 Account Titles Trial Balance
1. 1 answer
2. 972 views
Find the length of each side of a square if the diagonal is 7(square root 2)?How do I solve or set up this problem?
1. 4 answers
2. 533 views
1. what is the specific heat of an object if the heat needed to change its temperature from 40degree celsius to 75degree celsius
1. 1 answer
2. 477 views
1. How many clories will be needed to change the temperature of 3kg of water from 30degree celsius to 100degree celsius?please
1. 1 answer
2. 624 views
Can a contractor who doesn’t finish a home remodeling job get paid, even though they didn’t complete the job? BASE YOUR
1. 1 answer
2. 563 views
rachel drove 260 miles using 12 gallons of gas. at this rate, how many gallons of gas would she need to drive 286 miles?
1. 3 answers
2. 2,805 views
Using the numbers 2,3,5,10,24 write two separate equations that equal 120
1. 9 answers
2. 8,464 views
Assume all angles to be exact.The critical angle between two materials is 45∘. If the angle of incidence is 35∘, what is the
1. 0 answers
2. 516 views
An outdoor circular fish pond has a diameter of 4.00 m and a uniform full depth of 1.60 m . A fish halfway down in the pond and
1. 0 answers
2. 725 views
. To find out if a drug causes nausea, you would look in this section of the drug monograph
1. 1 answer
2. 493 views
HCI (aq) is a strong acid. suppose you dissolved 0.0365 grams of HCI in water to give a final volume of 10.0 mL. what is the pH
1. 1 answer
2. 572 views
A student determines the cobalt(II) content of a solution by first precipitating it as cobalt(II) hydroxide, and then
1. 6 answers
2. 2,216 views
I only need help with part B.A 250W computer power supply is on 10 h per day. Part A If the cost of electricity is $0.15/kWh,
1. 1 answer
2. 729 views
differnce btween eight times a number twice the number is 18
1. 1 answer
2. 397 views
if f(x) = sqrt x^2-1 and g(x)-sqrt x-1, which expression represents f(x)/g(x) for x>1.
1. 1 answer
2. 476 views
Wat is 3a-bWhen a is 15 and b is ~1.5
1. 2 answers
2. 344 views
How do i write the qoutient of twenty four and the number p as a variable expression using p as the variable
1. 2 answers
2. 615 views
4.86 mole Mg:0.112 mole O: smaller value
1. 1 answer
2. 325 views
Suppose there is a temporary but significant increase in oil prices in an economy with an upward-sloping Short-Run Aggregate
1. 0 answers
2. 623 views
Suppose there is a temporary but significant increase in oil prices in an economy with an upward-sloping Short-Run Aggregate
1. 1 answer
2. 802 views

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