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A girl coasts down a hill on a sled, reaching level ground at the bottom with a speed of 6.7 m/s. The coeﬃcient of kinetic
1. 1 answer
2. 1,033 views
Calculate the expected value and standard deviation of X, the number of on the job accidents:Accidents 0,1 2 Probability .5, ?,
1. 1 answer
2. 474 views
Let Y be a random number between 0 and 1 produced by the idealized uniform random number generator with density curve pictured
1. 0 answers
2. 941 views
How do you find the exact value of Sin(13pi)?
1. 1 answer
2. 2,023 views
A bean sprout grows 3 inches in its first week, 2 inches in its second week, and 1.333 inches in its third week. If the sprout's
1. 3 answers
2. 847 views
wave is modeled by the function ...h(t) = 3cos(p/10)*t What is the period of the wave (T) *frequency (F) is defined as the
1. 0 answers
2. 604 views
A child’s toy consists of plastic attached toa spring. The spring is compressed against the floor a distance of 1.48 cm, and
1. 0 answers
2. 842 views
My question is 'what does the area under the curve represent?' it's a Maxwell-Boltzmann curve.My first idea was the number of
1. 1 answer
2. 805 views
Sam has a savings account that increased in value over 12 month period from $8765.00 to $9006.04. He made no deposits or
1. 1 answer
2. 448 views
how many grams of lead are in a 3/4 inch ball of lead
1. 1 answer
2. 358 views
What is the moment of inertia of a solid cylinder of radius R=0.9550m,thickness t= 0.015m, and total mass M= 3.565 kg?
1. 2 answers
2. 1,298 views
Current is applied to a molten mixture of CuF, ZnCl2, and AlBr3.What is produced at the cathode? a)F2 b)Al c)Cu d)Zn e)Cl2 f)Br2
1. 6 answers
2. 7,325 views
A flush tank on a toilet is rectangular with dimensions of 21 inches by 6.5 inches and contain water to a depth of 12 inches.
1. 2 answers
2. 503 views
The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming
1. 1 answer
2. 891 views
At time t in seconds, a particle's distance s(t), in centimeters, from a point is given by s(t) = 4 + 3 sin t. What is the
1. 1 answer
2. 619 views
At time t in seconds, a particle's distance s(t), in centimeters, from a point is given by s(t) = 4 + 3 sin t. What is the
1. 1 answer
2. 488 views
What is the molarity of 24.5 grams of sulfuric acid dissolved in a liter of water?
1. 0 answers
2. 353 views
The balloon contains 0.30 {\rm mol} of helium starts at a pressure of 115 {\rm kPa} and rises to an altitude where the pressure
1. 1 answer
2. 962 views
Find the speed of sound (in m/s) at -35°C at 1 atm pressure in dry air.
1. 2 answers
2. 1,288 views
Rotating initially at 1800 rpm, a wheel with a diameter of 74.0 cm is brought to rest in 11.0 s. Calculate the magnitude of its
1. 3 answers
2. 672 views
Subtract: 7 gal 2 qt 1 pt – 5 gal 3 qt ½ ptI'm stuck plz help.
1. 1 answer
2. 354 views
A water bed that is 1.5 m wide and 2.5 m long weighs 1055 N. Assuming the entire lower surface of the bed is in contact with the
1. 1 answer
2. 2,580 views
A cube of wood with a density of 0.780 g/cm3 is 10.0 cm on each side. When the cube is placed in water, what buoyant force acts
1. 2 answers
2. 4,027 views
magnesium nitrate decompses in water and releases ammonia gas. If 355ml of ammonia is produced at STP, whit is the mass of
1. 1 answer
2. 679 views
The annual interest rate on an investment is 8%. What is the quarterly rate?(a) 1% (b)12% (c) 16% (d)2% (e)3% Can someone help
1. 3 answers
2. 1,014 views
Aldo invested his savings in two investment funds. The $24, 000that he invested in Fund A returned a 1% profit. The amount that
1. 1 answer
2. 899 views
7. Calculate the difference in the lung volumes of a male athlete who is 62 inches tall and a female athlete who is 56 inches
1. 1 answer
2. 488 views
Write two to three paragraphs briefly summarizing the theory and discussing at least two of the “Seven Intelligences” that
1. 3 answers
2. 425 views
I am making an essay about the conditions of our water resources and the issues concerning our water. What is a good title for
1. 1 answer
2. 436 views
An unmarked police car traveling a constant 80 is passed by a speeder traveling 145 .Precisely 2.50 after the speeder passes,
1. 2 answers
2. 1,177 views
Point T bisects RS. If R(-2,-5) and S(-14,-21), find the coordinates of point T.
1. 1 answer
2. 715 views
A farm tractor is pulling 2 pieces of equipment east, with each piece of equipment 25 north and south of the x axis. If it takes
1. 2 answers
2. 531 views
For 31 hours of work you are paid$ 361.15. How much would you receive for 33 hours of work? (a) $ 372.80 (b) $ 384.45 (c) $
1. 1 answer
2. 378 views
Like fractional notation, __________ notation is used to denote a part of a whole.
1. 2 answers
2. 1,428 views
When multiplying decimals, the decimal point in the product is placed so that the number of decimal places in the product is
1. 1 answer
2. 1,152 views
When writing decimals in words, write " __________ " for the decimal spot.(a) decimal (b) sum (c) vertically (d) horizontally
1. 1 answer
2. 416 views
Brand A grape juice sells at one pint for $1.65 and Brand B sells at 14 ounces for $ 1.44 . Which brand has the lower unit
1. 1 answer
2. 1,086 views
Sandy Sanders has an hourly wage of $ 15.00 and is paid time and one half forall overtime after 40 hours. Calculate Sandy’s
1. 3 answers
2. 616 views
The list price of an item is $ 78.99 and the net price is $ 56.67 . Determine the amount of discount.
1. 3 answers
2. 949 views
The value of 25 coins, consisting of dimes and quarters, is $ 3.55. How many dimes are in the collection?
1. 4 answers
2. 1,421 views
John withdrew $ 500 out of his bank savings account. He spent $ 50 on a radio, and 3 / 5 of what remained on gifts for his
1. 2 answers
2. 678 views
The value of 25 coins, consisting of dimes and quarters, is $ 3.55. How many dimes are in the collection?
1. 1 answer
2. 395 views
Round 0.000453 to the nearest thousandth.
1. 1 answer
2. 550 views
At 4 p.m., what part of a day has elapsed?
1. 1 answer
2. 341 views
Mrs. Hansen has 84 yards of material available to make school uniforms. Each uniform requires 3 / 4 yard of material. How many
1. 1 answer
2. 527 views
Cats cost $1, dogs cost $15, and mice cost only $0.25. I want a herd of 100 animals, and I have $100, so being a cat lover, it's
1. 4 answers
2. 699 views
If cos2 theta = 1/3 and 0 is less than or equal to 2 theta and 2 theta is less than equal to pi, find cos theta
1. 0 answers
2. 366 views
The notion of statistical significance is frequently used in business to distinguish between true and spurious between-group
1. 2 answers
2. 971 views
cos(x)=2and sin(x)=5 Thanks for your previous answers mathmate. No. It's not a typo. I was wondering if someone could explain to
1. 1 answer
2. 527 views
ok so I'm learning to solve problems likecos(x)=2 and sin(x)=5 I've wrapped my head around the process required to do so and I
1. 3 answers
2. 604 views
Hi,I'm a incoming freshmen to a university. Over the summer I obtained the book that we would be using for a course. I have
1. 6 answers
2. 563 views
Prove thatone over one squared plus one over two squared plus one over three squared....... plus one over 1000 squared is
1. 5 answers
2. 557 views
I guess it was skippedOne interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of
1. 0 answers
2. 550 views
One interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of the sequence approach a
1. 0 answers
2. 1,529 views
Do you guys have a tutor that specialized in computer science? I would expect that you guys would but I just wanted to make
1. 0 answers
2. 579 views
for my CSE 1010 course I solved every single problem in my text book. Sense it's a electronic file I could easily publish it to
1. 0 answers
2. 466 views
Hi I have a question about law, like for civics and stuff...My neighbors foreclosed their house and completely destroyed their
1. 0 answers
2. 492 views
What is the IUPAC name for the following molecules:1. CH3CH2N(CH2CH2CH3)CH2CH3 2. CH3CH2N(CH3)CH2CH3 I tried
1. 1 answer
2. 1,679 views
The weight of an apple near the surface of the earth is 1N. What is the weight of Earth in the gravitational field of the apple?
1. 2 answers
2. 2,729 views
SiH3-planar or pyramidal geometric shape?
1. 1 answer
2. 3,961 views
H2C=C=CH2 molecule is linear, what are they hybridization states of the carbon atoms? draw diagrams to show sigma and pi bonds.
1. 1 answer
2. 4,575 views
Here's is what I did:Collect water samples from Farm Lane bridge (500 mL minimum)þ Filter water samples using small mesh filter
1. 3 answers
2. 507 views
Here's is what I did:Collect water samples from Farm Lane bridge (500 mL minimum)þ Filter water samples using small mesh filter
1. 2 answers
2. 536 views
Please give me the formula for measuring turbidity. I already know about the wikipedia defintion and explanation.Thanks
1. 2 answers
2. 377 views
What is the formula for measuring turbidity?
1. 2 answers
2. 438 views
My experiment was to measure the float of a tongue depressor down a river.The mins it took the tongue depressor to float from
1. 0 answers
2. 486 views
How do I ocnvert meters into cubic meters?For example: measuring areas and velocity I come up with this: area 1.55m x 27.47 =
1. 0 answers
2. 352 views
This is the raw data we got from the river:The mins it took the tongue depressor to float from point a to b and the depth of the
1. 2 answers
2. 531 views
I need to calculate the discharge results for the following dates:April 4 2:52 mins 1.55 meters 5 2:40 1.63m 6 2:06 1.7m 11 1:17
1. 3 answers
2. 366 views
compound and interest Using the below values please calculate the amount accumulated (future value) *Initial principal=$2000
1. 1 answer
2. 755 views
A 50.0 mL sample of 0.12 M formic acid, HCOOH, a weak monoprotic acid, is titrated with 0.12 M NaOH. Calculate the pH at the
1. 3 answers
2. 709 views
A 50.0 mL sample of 0.23 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, is titrated with 0.14 M KOH. Ka of CH3CH2COOH =
1. 1 answer
2. 1,009 views
The Ka values of H3PO4 are shown below.Ka1 7.5 multiplied by 10-3 Ka2 6.2 multiplied by 10-8 Ka3 4.8 multiplied by 10-13 What is
1. 2 answers
2. 886 views
A 22.3 mL sample of a weak monoprotic acid, HX, requires 50.0 mL of 0.040 M NaOH to reach the equivalence point. After the
1. 1 answer
2. 478 views
A solution is prepared by dissolving 130 g of NaNO3 in 100 g of water at 80°C. The solution is cooled to 0°C. How many grams
1. 3 answers
2. 1,842 views
What is the remainder when the sum of the first 102 counting numbers is divided by 5250?
1. 0 answers
2. 543 views
What is the chemical formula for this compound?sodium diamminetetrachloroplatinate(IV)
1. 1 answer
2. 373 views
In an experiment using sodium light (λ=589 nm), the slits are 1.2 μm wide. You notice that every fourth fringes missing.a)
1. 1 answer
2. 690 views
A tube with a length L is closed at both ends and is filled with air. The wavelength of the fundamental mode of this tube is
1. 2 answers
2. 626 views
A 14.0 ohm resistor is made from a coil of copper wire whose total mass is 23.0 g. What is the diameter of the wire, and how
1. 1 answer
2. 1,167 views
The half life of iodine - 131 is 8 days. How long will it take for 7/8 of the sample to decay?
1. 1 answer
2. 526 views
A solid disk pulley of mass 2.00 kg and a radius of 30.0 cm is rotated by a block mass of 0.500 kg falling from rest, a distance
1. 2 answers
2. 668 views
A solid sphere at rest at the top 12.0 m inclined plane rolls down the incline. How high vertically does it rise of the other
1. 2 answers
2. 437 views
Can someone help me get started on this problem?A launcher fires a projectile with a velocity of 6.31m/s. Determine the
1. 2 answers
2. 547 views
A super-hero is leaping from the roof of one building onto another. The first building is 120 meters high and the second
1. 1 answer
2. 485 views
A launcher fires a projectile with a velocity of 6.31m/s. Determine the horizontal distance of the projectile (in the air) at 5
1. 1 answer
2. 454 views
You are the physics expert for a professional stuntman. The stunt you have designed includes a ramp that is angled at 30°. You
1. 1 answer
2. 552 views
A bomber is flying at a velocity of 200.0 km/hr with an altitude of 1.5 km. How far (horizontally) from its intended target
1. 2 answers
2. 563 views
A catapult throws a projectile at a 40.0° angle with a velocity of 26.0 m/s. How high will the projectile reach, and how far
1. 2 answers
2. 511 views
Rank the relative nucleophilicity of the indicated species in ethanol.CH3COOH CH3OH CH3COO- CH3S- CH3O- THANK YOU!
1. 2 answers
2. 7,108 views
Stock in Country Road Industries has a beta of 0.8940. The market risk premium is 8.7 percent, and T-bills are currently
1. 1 answer
2. 622 views
What are the conditions that should be kept constant when we are growing seeds?ex. The place of plant and etc?
1. 1 answer
2. 365 views
Industry downsizing has been a major part of the corporate world, even government agencies are downsizing. GovernmentExecutive
1. 0 answers
2. 573 views
Throughout the corporate world, businesses are transforming labor into a more flexible (and variable) cost. Among such companies
1. 1 answer
2. 479 views
28=2h-18
1. 2 answers
2. 272 views
Factorise4x^2-7x+3= and 6x^2+10x-5= Thanks Method would be good-as I am stuck.
1. 5 answers
2. 480 views
What is the force necessary to accelerate an object with a mass of 115 kg and and an acceleration of 6 m/s2 (squared) east?
1. 1 answer
2. 361 views
Differentiate:y = In ( (x+3) / (x^2) )
1. 0 answers
2. 298 views
If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the
1. 0 answers
2. 1,182 views
If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the
1. 0 answers
2. 543 views

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