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Sammy
Questions (338)
A pure copper penny is slid along a steel counter top. If the coefficient of kinetic friction between the copper and the steel
0 answers
1,087 views
What did Sir Humphry Davy do with the battery he built? I've looked online and haven't been able to find anything. Please help
1 answer
373 views
9 trucks arrive per hour. It takes 6 minutes after reaching the loading station. Two alternatives to modify the situation. One
0 answers
446 views
We had to read the opening paragraph of "The Cask of Amontillado" and analyze it with the following questions. I really need
4 answers
1,328 views
I have a square cake. The cake is iced on top and all the sides. I need to cut the cake in 6 pieces all pieces getting the same
1 answer
636 views
Abbreviations you can use for science?
1 answer
318 views
Solve:
2 cos[x-ð/8]-sqrt2=0
1 answer
410 views
If tan theta= 3 and ð<theta< 3ð/2, find cos theta.
1 answer
381 views
I've tried this sooo many times I have huge marks on my paper and I just can't figure it out:
3a/8-a/12+7/2=7
1 answer
324 views
1.)Name the property that is illustrated.
a) 7 „e 6 ƒ 6 „e 7 b) 7 ƒy (1 ƒy 9) ƒ (7 ƒyƒn1) ƒy 9 2.) a) Identify the
0 answers
476 views
Corinne rolls two six-sided number cubes with sides labeled 1-6.
What is the probability that she rolls a 6 on both cubes? A.
1 answer
631 views
The legal limit for drunkenness is 0.08 ( 0.08 grams of alcohol per 100ml of blood). expired air contains the following main
0 answers
610 views
Which statement is correct?
A. All intergers are rational numbers. B. All irrational numbers are whole numbers. C. A real number
0 answers
641 views
I have three more questions I do not understand.
1. Two points (-1,1) and (3,-2) are graphed on a coordinate plane. What is the
0 answers
771 views
The chart shows the number of cars sold per week at a car dealership during the month of June.
Salesperson Week 1 Week 2 Week 3
4 answers
1,599 views
Check my answer please?
Yuri is wrapping presents. The first box measures 9 inches by 12 inches by 2 inches. He has a second box
1 answer
691 views
Could you please check my answer?
Subtract: (6a+2b-5c)-(3a+2c) My answer was: 3a+2b-7c
2 answers
482 views
I'm confused on two questions that are kind of similiar:
State the slope and y-intercept of y= -1/2x I know the slope is -1/2 but
2 answers
540 views
Vera wrapped a package that measured 8 in. by 10 in. by 5 in. Find the surface are of the package.
I really don't know why I'm
1 answer
425 views
Which measure of central tendency best describes these data?
100, 5, 90, 95, 100 A. the mode only B. the mean and the median C.
1 answer
1,083 views
Charlotte wants to conduct a survey to find out if the people in her town think that the town should build a new library. Which
5 answers
691 views
What is the probability of drawing a heart or a diamond from a standard deck of 52 playing cards?
I got 1/2, is this correct?
1 answer
729 views
What is the probability of rolling a number cube and getting an even number or a multiple of 3?
I got 4/6 as the probability, but
4 answers
744 views
You received scores of 70, 40, 70, 90, and 40. Find the first quartile.
I don't even know what a quartile is.
3 answers
422 views
When someone buys fish at the fresh fish market, they should smell the fish to test for freshness, the less “fishy” the
0 answers
566 views
The gas tank of a car holds 20 gallons of gas. A gallon of gas costs $1.22. When the tank was filled it cost $20. About what
2 answers
836 views
A molecule of water is made up of 2 atoms of hydrogen and 1 atom of oxygen. What percent of the atoms of a water molecule is
4 answers
781 views
I have no idea how to do this problem:
Select the expression below that is equal to 4(9-m). A. 4m-36 B. 13-m C. 36-m D. 36-4m
4 answers
360 views
Find the unit price and tell which is the better buy:
Buy one 10 pack of AAA batteries for $5.49 and get one free, or buy two 4
6 answers
1,103 views
Find the unit price and tell which is the better buy:
A 64 oz. bottle of juice costs $2.39, and a 20 oz. bottle costs &0.79. You
2 answers
1,074 views
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated
3 answers
885 views
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated
1 answer
534 views
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celisus and placed in two identical insulated
1 answer
487 views
Determine the zeros of the function 7x^2 + 9x = 0
answers were: {-9/7} {-9/7,0} {o,9/7} {9/7} I think the answer is {-9/7,0} but
1 answer
512 views
Name some ethical dilemas that prosecutors have to face
1 answer
434 views
What is the equation of g(x) if the parent function is f(x) = x^2 and a = 2, h = -5 and k = 7
f(x) = 2(x-5)^2 + 7 F(x) =
7 answers
2,080 views
An airtight box, having a lid of area 12 in2, is partially evacuated. Atmospheric pressure is
15 lb/in2. A force of 108 lb is
0 answers
510 views
A rock, which weighs 350 lb in air, weighs 226 lb when submerged in fresh
water (62.4 lb/ft3). The volume of the rock is:
0 answers
650 views
A constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm. Where the pipe is wide
The fluid velocity is 8.0m/s. Where
4 answers
3,734 views
Water (density = 1.0 × 103 kg/m3) flows through a horizontal tapered pipe. At the wide end its speed is 4.0m/s and at the
1 answer
3,098 views
a mixture of gases contains 0.4 mole of N2, 0.5 moles of O2, and 0.7 moles of H2. What is the partial pressure of O2 if the
1 answer
627 views
A ball is thrown straight upward and returns to the thrower's hand after 3.40 s in the air. A second ball is thrown at an angle
1 answer
1,279 views
Brett Favre is traveling from Minneapolis to Green Bay at 40mph. Aaron Rodgers is traveling from Green Bay to Minneapolis at
2 answers
522 views
3 points on a line Q,P,R (In order)
if QP =2x and QR =2x+1 and PR =21 Solve for x
3 answers
437 views
1. What is the pH when enough 0.10 M Base (in mL) is added to neutralize 8 mL of 0.10 M Acid?
Complete the following table. NaOH
0 answers
853 views
YOu come to work on a Monday morning and find that the office computer is not workingt. The system manager tells everyone that
2 answers
963 views
i need some examples of simile, metaphor, and personification.
From not any website
5 answers
681 views
Increasing $100 by a certain percent produces the same result as decreasing $300 by the same percent.
What is this percent?
3 answers
1,109 views
hydrogen and oxygen gas combine explosively to produce water. write a blanced equation for this process.
if 10 mol of hydrogen
2 answers
1,036 views
2NO2. how many grams of NO2 will be produced with 5.00 moles of NO React? what would the working out of this be?
1 answer
803 views
Analogy: broom is to sweep AS brush is to _____________ 5 letter word that starts with either scr, spr, str, or thr.
I've been
6 answers
2,256 views
Need help with an analogy.
brother : mother fly : _ _ _ _
3 answers
308 views
What would most likely happen if the Canadian government overruled the current laws protecting French language and heritage in
1 answer
514 views
How would increasing the volume of the reaction vessel affect these equilibria. You don't have to tell me the answers, but can
1 answer
1,010 views
Why does changing the volume of the reaction vessel have no effect on this equilibrium?
CO(g) + Fe3O4(s) <===> CO2(g) + 3FeO(s)
2 answers
2,889 views
If 335g water at 65.5 degC loses 9750 J of heat, what is the final temperature of the water?
1 answer
1,060 views
Write as fractions.
a. 1/2 of 3/4 b. 1/3 of 3/5 c. 3/4 of 1/6
2 answers
318 views
If 430 mL of 0.837 M aqueous HNO3 and 23.5 g of solid Al are reacted stoichiometrically according to the balanced equation, how
1 answer
629 views
A force of 4.3 x 10-15 N acts between an electric dipole with dipole moment 2.3 x 10-29 C m and an electron.
How far away from
3 answers
1,065 views
A hydrogen atom consists of a positively charged proton (nucleus) and a negatively charged electron. The following is correct
2 answers
969 views
Explain how the supply of new housing interacts with shifts in the demand for owner-occupied housing in your neighbourhood or an
0 answers
560 views
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is
1 answer
784 views
Sorry for the repost, i made a typo in the original post's subject.
A dry water well is 1.5 m in radius and 5.0 m deep. In order
0 answers
434 views
Assuming it behaves as an ideal gas, calculate the temperature of a sample of He whose molecules have an average translational
2 answers
711 views
Asked question wrong last time.
New question with description of how to figure it out please. What is the value of 3t+7 given
1 answer
510 views
What is the value of 3t+7 when you know -21t+1=3
I need to know how to figure this out not just the answer. Thank you
2 answers
357 views
Find the Rates of convergence of the following functions as h->0
lim h->0 sin h - hcosh ------------- = 0 h Find the Rates of
2 answers
1,512 views
Alcohol flows smoothly through a horizontal pipe that tapers in cross-sectional area from A1 = 41.9 cm2 to A2= A1/3. The
0 answers
738 views
An object has a mass of 0.5 kg. It undergoes a simple harmonic motion. The amplitude of that motion is 0.07 m and the period is
1 answer
666 views
Could someone explain dipole-dipole forces for me?
2 answers
500 views
There is a 12mm high object that is 10 cm from a concave mirror with a focal length of 17 cm. (a) Where (B) How high, and (C)
1 answer
622 views
There is a 12mm high object that is 10 cm from a concave mirror with a focal length of 17 cm. (a) Where (B) How high, and (C)
1 answer
512 views
What angle should you rotate a mirror so that a reflected ray rotates through 28 degrees.
I got 20, but i am not sure, please
2 answers
538 views
HELP!!!
Translate to an inequality. Use the variable x. The price of an amusement park ticket is greater than or equal to $12.
1 answer
940 views
What are the seven areas or personal grooming?
1 answer
520 views
Divide if possible 48/-8 select the correct choice below and fill in any answer boxes in your choice
A.48/-8= B.The answer is
1 answer
550 views
Solve. 8x+4=4x+5= the solution is x=
simplify your answer. Type an integer or fraction
1 answer
766 views
The demand for gasoline is less elastic in the short run than in the long run. Which of the following is a reason for this?
(A)
2 answers
1,001 views
The freezing point depression of a .100 m solution of NaCl solution is .34C. Calculate the percent dissociation of NaCl.( Kf for
1 answer
663 views
There is a rod that is 55 cm long and 1 cm in radius that carries a 8 uC charge that is ditributed uniformly over its entire
1 answer
562 views
When salt is spread on a snow-covered road at -2C, the snow melts. Though when the same amount of salt is spread on the snow
2 answers
689 views
Which compound does not dissociate
a. table sugar b. NaCl C. MgCl2 D. CaCl2 I say b becasue it dissociates 90%, right?
2 answers
370 views
Wwhich compound does not dissociate?
a. Table sugar
1 answer
353 views
If you had a 5.55 M solution of NaCL that has a density of 1.025g/ml at 20C, what would the concentration be of the solution in
1 answer
481 views
There is a rod that is 50cm long and has a radius of 1cm that carries a charge of 2uC distributed uniformly over its length.
1 answer
779 views
There is a rod that is 50cm long and has a radius of 1cm that carries a charge of 2uC distributed uniformly over its length.
1 answer
754 views
Suppose that the government decides to charge cola consumers an excise tax. Before the tax, 12 million cases of cola are sold
1 answer
1,007 views
There is an electric field in a certain region that is defined as E=axihat, a is N/C and x is defined by the position in meters.
0 answers
497 views
There is a figure with a +2.0 UC charge on the left and a -2.0 uC charge on the right. P is in the center between the two
1 answer
542 views
There is a proton that is at the origin and an ion at x1=6 nm. If the electric field is zero at x2= -3 , what is the charge on
1 answer
2,203 views
There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm.
Find the elctric force on the proton
1 answer
640 views
There is a 85 uC point charge at the origin. What is the electric field at the point x= -45cm , y= 55cm. I am doing
1 answer
512 views
A -3.5 uC charge experiences a 13N i hat electric force in a certain electric field.What would the force be for a proton
0 answers
542 views
There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm.
Find the elctric force on the proton
0 answers
470 views
There is a figure q1= 23 uC and q2= 16 uC. The force on q1 points in the -x direction.
q1 is at (0,1) q2 is at (2,0) q3 is at
0 answers
927 views
Suppose a new type of pest, which is immune to existing pesticides, attacks the wheat crop. As a result, at a given quantity of
1 answer
453 views
There is a proton that is at the origin and an electron at the point x= 0.42nm and y=0.36nm.
Find the elctric force on the proton
0 answers
584 views
The Earth is surrounded by an electric field on its surface that points toward the center of the Earth with an average magnitude
1 answer
700 views
What electrical appliance uses a 1.5 Volt battery?
1 answer
686 views
HOW MANY SHIPYARDS DID WE HAVE DURING WORLD WAR 1?
0 answers
365 views
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