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Questions Asked on January 30, 2014

Which of the following explains why sunlight is important to aquatic ecosystems?Sunlight provides a source of heat energy to
1. 77 answers
2. asked by Princess Anna
3. 19,492 views
I'm not sure how to solve this:If 125 cal of heat is applied to a 60.0-g piece of copper at 20.0∘C , what will the final
1. 15 answers
2. asked by mysterychicken
3. 16,132 views
A ball player catches a ball 3.33s after throwing it vertically upward.a) with what speed did he throw it? b) what height did it
1. 1 answer
2. asked by Daniela
3. 15,135 views
How do the principles of convection, conduction, and radiation explain how the water in the saucepan gets hot?
1. 29 answers
2. asked by Cindy
3. 10,527 views
please check my answers.Mrs. Walters drove 160 miles on 5 gallons of gas. How many gallons of gas will she need to travel 256
1. 23 answers
2. asked by annabelle
3. 4,606 views
Which of the following determines the type of biome classification that will be made for a particular reason?a. Climate* b. Size
1. 20 answers
2. asked by Maria
3. 4,221 views
For what values of b is the expression factorable?x^2 + bx + 12
1. 4 answers
2. asked by Anonymous
3. 3,864 views
help pls asap!!!!! check my answers!!!4.) A certain object has a volume of 25.0 mL and a mass of 100g. What is the density of
1. 20 answers
2. asked by TTR+S<3
3. 3,821 views
1. Which of the following foods are exempt from the food labeling law?*ready to eat foods as foods at a bakery, deli and/or
1. 2 answers
2. asked by Cassie
3. 3,430 views
What is the mass of water that results from combining 2.0 g of hydrogen with 16.0 g of oxygen?14.0 g (I'm thinking this.) 16.0 g
1. 15 answers
2. asked by Anonymous
3. 3,362 views
A motorcycle stunt driver zooms off the end of a cliff at a speed of 30 meters per second. If he lands after 0.75seconds, what
1. 2 answers
2. asked by Anonymous
3. 3,266 views
the ratio to the number of mystery books to the number of science fiction books is 4:3the ratio of the number of science fiction
1. 8 answers
2. asked by Anonymous
3. 3,165 views
Phosphoric Acid is usually obtained at an 85% phosphoric acid solution, by mass. If this solution is 15 M, what is the density
1. 2 answers
2. asked by JL
3. 3,109 views
Let g and h be any two twice-differentiable functions that are defined for all real numbers and that satisfy the following
1. 2 answers
2. asked by Rachel
3. 2,987 views
the perimeter of a rectangular garden is 40 meters. the length of the garden is 1 meter less than twice its with. what are the
1. 3 answers
2. asked by taylor
3. 2,733 views
Jerrod's bike has a tire diameter of 26 inches. How far will the bike travel in 100 rotations of its tires?
1. 5 answers
2. asked by Tom
3. 2,552 views
A particular MP3 encoder can convert 79.0 kilobytes (kb) of music per second from a typical music CD. How many minutes will it
1. 1 answer
2. asked by Katie
3. 2,349 views
1. How did the formation of the National Action Party change Mexican politics?A.It ended the one-party system. B.It consolidated
1. 36 answers
2. asked by annabelle
3. 2,342 views
Mr Townes created a 2foot wide garden path around a circular garden. The radius of the garden is 7 feet. He wants to cover the
1. 3 answers
2. asked by Sam
3. 2,337 views
Which one of the following compounds is not a salt?1. Ca(ClO4)2 2. Fe(NO3)3 3. Cr(OH)3 4. Na2SO3 5. KMnO4
1. 3 answers
2. asked by Gabriella
3. 2,122 views
help pls!!! i am confused!! can you check to see if these are right!??4. List all of the quadrilaterals with exactly one pair of
1. 13 answers
2. asked by TTR+S<3
3. 2,042 views
Which of the following shows the correct order from coldest to hottest average annual temperature?a.
1. 6 answers
2. asked by Marie
3. 1,984 views
Granite is an igneous rock that forms from magma cooled below Earth's surface.Why would granite have larger crystals than
1. 2 answers
2. asked by Anonymous
3. 1,883 views
A pronghorn antelope can travel 105 miles in 3 hours.if it continued at the same speed how far could a pronghorn travel in a 11
1. 5 answers
2. asked by mike
3. 1,794 views
how many kilocalories of heat are released when 85g steam at 100 degrees C converted to ice at 0.
1. 2 answers
2. asked by Anonymous
3. 1,760 views
Hi, can someone help me? What land biome has the lowest humidity? I guess Tundra. A tundra if I'm not mistaken. There were 4
1. 2 answers
2. asked by Hi
3. 1,679 views
1. Which of the following foods are exempt from the food labeling law?*ready to eat foods as foods at a bakery, deli and/or
1. 1 answer
2. asked by Cassie
3. 1,667 views
How do the principles of convection, conduction, and radiation explain how the water in the saucepan gets hot?Help ME PLEASE!
1. 7 answers
2. asked by Cindy
3. 1,653 views
On an unknown planet, a pendulum of length 1.5 m swings with a period of 3.3 s. What is the acceleration of gravity on this
1. 1 answer
2. asked by Rachell
3. 1,620 views
Write five equivalent ratios for each ratio.18 to 8 ?
1. 3 answers
2. asked by Regan
3. 1,605 views
Two point charges lie on the x axis. A charge of 6.2μC is at the origin, and a charge of -9.5μC is at x=10.0cm. What is the
1. 1 answer
2. asked by afton
3. 1,582 views
5. The food label law is mandatory for the following foods:a. ready-to-eat foods at a bakery, deli, and/or candy store b. most
1. 3 answers
2. asked by Cassie
3. 1,567 views
How much time is needed for a car to accelerate from 8.0 m/s to speed of 22 m/s if the acceleration is 3.0 m/s^2?
1. 1 answer
2. asked by Anonymous
3. 1,474 views
Provide at least two modern examples of how the United States has increased its food production.
1. 4 answers
2. asked by rat
3. 1,423 views
Explain why pentane has a significantly higher vapor pressure than 1-butanol?
1. 1 answer
2. asked by Jacky
3. 1,417 views
from a height of 40 m above sea level, two ships are traveling due west. the angles of depression are 45 degrees and 60 degrees.
1. 1 answer
2. asked by carlos
3. 1,330 views
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not
1. 1 answer
2. asked by Sania
3. 1,322 views
If I had borrowed 1500 for six months at 8.5% annual simple interest. How much I will have to repay at the end of six months
1. 8 answers
2. asked by seravyan
3. 1,296 views
1 curry and 1 tea cost £4.2 curries and 2 puddings cost £9. 1 pudding and 2 teas cost £2. What do you have to pay in total
1. 1 answer
2. asked by jessica
3. 1,292 views
If 400 mL of 3.2 molar HCl solution is added to 300 mL of 2 molar NaOH solution, what will be the molarity of NaCl in the
1. 2 answers
2. asked by Gabriella
3. 1,289 views
a__has a definite shape and a definite volume
1. 4 answers
2. asked by Anonymous
3. 1,274 views
a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water
1. 1 answer
2. asked by Linda
3. 1,232 views
A flywheel has a small magnet mounted on it. EAch time the magnet passes the coil, a voltage pulse is generated, which is passed
1. 1 answer
2. asked by Saraf
3. 1,226 views
can anyone answer these 3 answers showing how your work.thanksMrs. Walters drove 160 miles on 5 gallons of gas. How many gallons
1. 2 answers
2. asked by annabelle
3. 1,215 views
What are some real-life examples of exponential decay? Please help me think of some ideas...except radioactive decay.
1. 1 answer
2. asked by Anonymous
3. 1,156 views
On October 1, 1956, The Diary of Anne Frank opened simultaneously in seven cities in Germany. At the end of the play, the
1. 2 answers
2. asked by Maria
3. 1,156 views
Find an equation of the set of all points equidistant from the pointsA(−2, 6, 3) and B(5, 3, −3)
1. 1 answer
2. asked by julide
3. 1,151 views
1. The combination of sulfur dioxide, nitrogen oxide, and atmospheric moisture createsA. drinking water. B. smog. C. pesticides.
1. 7 answers
2. asked by Beatrice
3. 1,139 views
An athletes long jump rounded to the nearest metre was 8 m. What are the longest and shortest lengths the jump could have been
1. 3 answers
2. asked by Ann
3. 1,104 views
A snowmobile moves according to the velocity-time graph shown in the drawing. What is the snowmobile's average acceleration
1. 0 answers
2. asked by Hope
3. 1,056 views
if the 29th term of arithmetic series is double of 19th term then find the 9th term.
1. 1 answer
2. asked by Arpan
3. 1,052 views
A)A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.15 m/s at an angle of
1. 1 answer
2. asked by Teddy
3. 1,052 views
Which of the following substances is a liquid fuel used in rocket engines A. liquid oxygenB. Ammonia c. potassium perchiorate D.
1. 3 answers
2. asked by Anonymous
3. 1,039 views
Doctors use iodine-131 to treat some forms of cancer. The half-life of iodine-131 is 8 days. A patient receives a treatment of
1. 7 answers
2. asked by Anonymous
3. 1,031 views
2. At the end of each year a self-employed person deposits $1,500 in a retirement account that earns 10 percent annually.a) How
1. 2 answers
2. asked by shunda
3. 1,025 views
Calculate the enthalpy change of formation for the following reactions using Hess's law, and the enthalpies of formation given
1. 1 answer
2. asked by BOB
3. 989 views
50.0 mL of an HCl solution with a pH of 3.5 neutralizes 200.0 mL of a Ca(OH)2solution. What is the molarity of the Ca(OH)2
1. 1 answer
2. asked by Gabriella
3. 981 views
last year, 2713 teachers attended a technology conference. if there were 163 more men than women at the conference, how many men
1. 2 answers
2. asked by taylor
3. 980 views
on a certain map,10 miles is represents 1.5 centimeters.what is the distance on the map that represents 40 miles?
1. 2 answers
2. asked by ivyjane
3. 962 views
a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water
1. 0 answers
2. asked by Linda
3. 948 views
Does sound travel faster in wood or water?
1. 2 answers
2. asked by Anonymous
3. 939 views
At noon on a clear day, sunlight reaches the earth\'s surface at Madison, Wisconsin, with an average power of approximately 1.00
1. 1 answer
2. asked by Clare
3. 939 views
solve for d if ddd base 5 = 124
1. 1 answer
2. asked by lou
3. 933 views
A rock thrown straight up climbs for 4.24 s, then falls to the ground. Neglecting air resistance, with what velocity did the
1. 1 answer
2. asked by Coya
3. 918 views
in a gasoline engine, the area in the cylinder head where the air-end and-fuel mixture is burned is called the A. piston B.
1. 2 answers
2. asked by Anonymous
3. 910 views
Dru is challenged by her geometry teacher to estimate the height of the school flag pole without measuring. She decided to walk
1. 1 answer
2. asked by jan
3. 895 views
THE PERIMETER OF A RECTANGULAR GARDEN IS 40 METERS. THE LENGTH OF THE GARDEN IS 1 METER LESS THAN TWICE ITS WIDTH WHAT ARE THE
1. 1 answer
2. asked by taylor
3. 888 views
liquid alcohol will change to vapor when its temperature reaches the A. boiling point B. fusing point C. freezing point D.
1. 1 answer
2. asked by Alice
3. 884 views
An athletes long jump rounded to the nearest metre was 8 m. Whar are the longest and shortest lengths the jump could have been
1. 2 answers
2. asked by Ann
3. 883 views
An object is dropped from a platform100 ft high. Ignoring wind resistance, how long will it take to reach the ground?
1. 1 answer
2. asked by AS
3. 881 views
if sin and sec of theta are less than zero what quadrant is it in
1. 2 answers
2. asked by Anonymous
3. 855 views
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not
1. 0 answers
2. asked by Sania
3. 850 views
Microprocessing chips are randomly sampled oneby one from a large population, and tested to determine if they are acceptable for
1. 0 answers
2. asked by BRARSAAB
3. 845 views
prove tan (theta/2)= (sin(theta))/(1+cos(theta))for theta in quadrant 1 by providing the calculation along with the reason.I
1. 1 answer
2. asked by LIZZIE
3. 840 views
A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she
1. 2 answers
2. asked by David
3. 833 views
If the ball is in equilibrium when the stringmakes a 43◦ angle with the vertical as indicated, what is the net charge on the
1. 0 answers
2. asked by Anonymous
3. 832 views
1. For this assessment, explicityly state the five steps of a simulation and carry out the simulation. Use the random digit
1. 0 answers
2. asked by Helen
3. 830 views
A rectangular yard measuring 30ft by 35ft is bordered (and surrounded) by a fence. Inside, a walk that is 4ft wide goes all the
1. 1 answer
2. asked by John
3. 796 views
An office heater puts out 2070 Btus (British thermal units) of energy in the form of heat per hour. Given that 1 Btu = 1.055 kJ,
1. 2 answers
2. asked by Cain
3. 791 views
A spoke on a wagon wheel is 2 feet long. What is the circumference of the wagon wheel to the nearest tenth of a foot?
1. 4 answers
2. asked by Anonymous
3. 786 views
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not
1. 0 answers
2. asked by Sania
3. 777 views
The white house, built 1792, is the oldest federal building in washington DC . The building has undergone extensive remodeling
1. 1 answer
2. asked by Nick
3. 765 views
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not
1. 0 answers
2. asked by Sania
3. 762 views
A rubber ball is dropped from height h. It bounces 27" (60%). Write an equation you can use to find height h
1. 1 answer
2. asked by Jeanne
3. 756 views
A merry-go-round has a circumference of 15 feet. What is the radius of the merry-go-round to the nearest tenth of a foot?
1. 1 answer
2. asked by Anonymous
3. 755 views
Tanya has 4 red marbles, 7 blue marbles, and 8 green marbles. Which expression can be used to find the percent of Tanya's
1. 1 answer
2. asked by Paige
3. 749 views
What is the mass of sodium nitrate NaNO3 that you would need to add to 250 g of water in order to prepare a solution that is
1. 0 answers
2. asked by Mike
3. 743 views
If a line is extended from A (2,3) through B ( -2, 0 ) to a point so that AC = 4ab Find the coordinates of CPlease help thanks
1. 1 answer
2. asked by Joy
3. 740 views
A spring (k=80n/m) lies on a frictionless table, one end connected to the wall, the other to a 4kg block. The block is pulled,
1. 0 answers
2. asked by Amina
3. 735 views
Excess body fat may cause...Answer choices: 1. diabetes, lack of stored energy, stroke, and heart disease. 2. lack of organ
1. 3 answers
2. asked by Elina
3. 723 views
The volume of a sphere is given by V=(4/3)3.14r^3, where r is the radius. Compute the volume of a sphere with a radius of 329pm.
1. 1 answer
2. asked by Cain
3. 717 views
If the absolute temperature of gas is 600K, the temperature in degrees celsius is A.273 b.705c
1. 1 answer
2. asked by Alice
3. 712 views
Moving a charge from point A, where the potential is 370V , to point B, where the potential is 190V , takes 4.1×10−4J of
1. 0 answers
2. asked by Phil
3. 709 views
Heat from burning fuel warms the walls of the firebox section of the furnace in A.a hot heating system B.an evaporation system
1. 1 answer
2. asked by Anonymous
3. 705 views
: Cost of machine $ 90,400 Residual value $ 3,400 Useful life 5 years Estimated units machine will produce 100,000 Actual
1. 0 answers
2. asked by Anonymous
3. 704 views
A basket weighing 0.3kg is suspended from two ropes which are tied to a horizontal beam. The rope on the left is at an angle of
1. 1 answer
2. asked by irvin
3. 702 views
the perimeter of a rectangular garden is 40 meters. the length of the garden is 1 meter less than twice its with. what are the
1. 2 answers
2. asked by taylor
3. 694 views
Chris wants to know his BMI. He is five feet, six inches tall and weighs 130 pounds. What is Chris's BMI?Answer choices: 1. 18
1. 1 answer
2. asked by Elina
3. 692 views
How many moles of NaOH will it take to neutralize 0.77 L of 0.81 M HCl?Answer in units of mol
1. 1 answer
2. asked by Gabriella
3. 692 views
I still don't know how to directly solve this problem. Can someone guide to solve this system of equation by using the
1. 3 answers
2. asked by Anonymous
3. 691 views

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