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Shirley
Questions and answers by visitors named
Shirley
Questions (92)
An object located 18 cm from a convex mirror prodeucses a virtual image 9 cm from the mirror. What is the magnification of the
5 answers
asked by
Shirley
3,578 views
2H2(g)+O2(g) ---> 2H2O(l)
delta H= -572kJ/mole of O2 Calculate the amount of heat evolved when 10g of hydrogen are burned in
2 answers
1,187 views
How do you find the relative maximum and minimum of a graph using a graphing calculator? Specifically, a Texas Instruments 82,
1 answer
609 views
During an average lifetime, a person sheds about 40 pounds of dead skin. In the United States, life expectacy for men is about
2 answers
508 views
Can someone check my answers?
1. Write the equation of the line that passes through point (–2, 3) with a slope of –4. Answer:
4 answers
1,480 views
We hear people talk of "ultraviolet light" and "infrared light." Why are these terms misleading? Why are we less likely to hear
4 answers
1,995 views
Your friend says that any radio wave travels faster than any sound wave. Do you agree or disagree, and why?
2 answers
641 views
A helium-neon laser emits light of wavelength 633 nanometers(nm). Light from an argon laser has a wavelength of 515 nm. Which
4 answers
1,719 views
If you fire a bullet through a tree, it will slow down inside the tree and emerge at a speed that is less than the speed at
3 answers
1,074 views
What determines whether a material is transparent or opaque?
1 answer
398 views
I just wanted to say THANK YOU so much. You're a lifesaver!
1 answer
247 views
The equation P=240I-8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of
2 answers
507 views
The equation P=240I-8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of
4 answers
553 views
The equation P=240I-8I^2 represents the power, P, (in watts) of a 240 volt circuit with a resistance of 8 ohms when a current of
2 answers
764 views
If sin x=-.6 and x is in Quadrant 4, find cos x/2
I have no idea how to do it!!!PLEASE HELP!!!!!!!!!!
1 answer
322 views
The nucleus of a copper atom contains 29 protons and has a radius of 4.8*10^-15m. How much work (in electron volts) is done by
3 answers
1,187 views
In the case of Florida v. Enio Jimeno:
a.What is the correct citation of the case? b.On what page does the court's decision
2 answers
557 views
I know a ratio compares two numbers. However, my niece came home with this homework question and I'm not sure what the answer
1 answer
391 views
Five common purposes in writing for an attorney are to inform, educate, entertain, persuade and control. What are the purposes
1 answer
430 views
Is it slander to announce that a person has tested HIV positive where the statement is not true?
2 answers
470 views
Why do paralegals need to know about computers and the different types of computer software packages to be a paralegal? What
2 answers
1,031 views
The following table gives the winning percentages of the top five coaches in NFL history,what fraction of his games has each
5 answers
396 views
Im having trouble with this.
Find an equation of the tangent line to the parabola at the given point and find the x-intercept of
3 answers
449 views
How do you find the distance from the point to the line given the equation and the coordinates?
4x-2y-6=0 (1,1)
3 answers
529 views
in java code what are the differences between 2, 2.0, '2', "2", and "2.0"
2 answers
879 views
Should humans strive to preserve a representative sample of all biomes or aquatic zones?
1 answer
393 views
Compute the worth of Arcadia Hospital in 2005 using rules of thumb, adjusted book value, and discounted cash flow valuation (for
10 answers
508 views
What number divided by 2, 3, 4, 5, or 6 has a raminder of 1, but when divided by 7 has no remainder?
1 answer
357 views
A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in
3 answers
502 views
Which of the following is an example ofprejudice?John, who lives in Texas, believes that the US is the best country in the
1 answer
388 views
What is the molecular weight of a gas if a 21.0g sample has a pressure of 836mm Hg at 25.0 degrees C in a 2.00L flash?
3 answers
1,438 views
polynominal
An appliance company sells x machines total revenue R in dollars, given by polynominal R=221.19x-0.2x^2. What is
2 answers
509 views
r= -0.075t + 3.85 solve for t
r=3.7 -0.075t + 3.85 < 3.7 -0.075t + 3.85 - 3.85 <3.7 - 3.85 + 0.15 -0.075t/-0.075 > -0.185/-0.075
4 answers
639 views
Complete the rectangle to illustrate the product. (x+8)(x+7)
3 answers
695 views
algebra, write a quadratic equation in the variable x having the given numbers as solutions -�ã10, 6�ã10
1 answer
437 views
solve (x=10) (x-18) (x=13)=0
1 answer
238 views
how do I solve -8 - (-2)
1 answer
257 views
This week you are beginning your project. The development for this project will take place over length of the capstone course.
2 answers
1,124 views
can you solve this set of equations using the elimination method?
3x+4y=34 and 3x+2y=26
3 answers
465 views
The random variable x is normally distributed with mean =1,000 and standard deviation =100. Sketch and find each of the
1 answer
801 views
The random variable x is normally distributed with mean =1,000 and standard deviation =100. Sketch and find each of the
2 answers
531 views
What kind of carbon-carbon bonds are found in alkane molecules?
Is the answer Pentane
1 answer
461 views
How could you distinguish one from the other? (a) CH3COOH and CH3OH? (b) C2H5OH and H2O?
1 answer
349 views
What would happen if ozone were to disappear from the upper atmosphere? From the lower atmosphere?
Would we die if it disappeared
1 answer
988 views
What have the compounds in each of these pairs in common? How could you distinguish one from the other? (a) CH3COOH and CH3OH?
2 answers
517 views
(a) at what times of year are the periods of daylight and darkness the same everywhere on the earth? What are these times
2 answers
871 views
(a) What is the name of weather systems centered about regions of low pressure? (b) In what direction do winds in the northern
1 answer
407 views
What is the difference between the focus of an earthquake and its epicenter?
3 answers
777 views
Distinguish between the foliation of a metamorphic rock and the stratification of a sedimentary rock.
1 answer
360 views
An earthquake occurs far from an observing station and produces P, S, and surface waves. Do all the wave arrive at the same
4 answers
740 views
What are the equivalents of K, 0°C, and 0°F in the other temperature scales?
1 answer
341 views
Where do subduction zones occur? What happens at them? What becomes of a subducted plate edge?
2 answers
555 views
Why are most fossils found in beds that were once the floors of shallow seas?
3 answers
747 views
Compare the likelihood that an astronaut on Mars will be struck by meteoroid with its likelihood on earth.
1 answer
365 views
A weather balloon carries instruments that measure temperature, pressure, and humidity as it rises through the atmosphere.
5 answers
2,431 views
The brakes of a car are applied to give it an acceleration of -3m/s^2. The car comes to a stop in 5 s. What was its speed when
2 answers
671 views
Which astronomical objects that appear as points of light to the unaided eye appear as disks with the help of a telescope?
1 answer
423 views
Both galactic nebulas and globular clusters occur in our galaxy. Distinguish between them.
1 answer
296 views
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
1 answer
313 views
(a) Why is the sun considered to be located in the central disk of our galaxy? (b) What is thought to occupy the center of the
2 answers
996 views
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
2 answers
833 views
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
1 answer
360 views
A recent study shows that the number of Australian homes with a computer doubles every 8 months. Assuming that the number is
3 answers
1,331 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1 answer
480 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1 answer
445 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
2 answers
868 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
2 answers
635 views
Adam used 2/5, 1/6 and 1/3 to make a circle graph and colored each a different color. What fraction of the graph is not colored?
3 answers
405 views
Semiannually deposits of $400 are made for 10 years into an annuity that pays 7% compounded semiannually
2 answers
634 views
2H2(g)+O2(g) ---> 2H2O(l)
delta H= -572kJ/mole of O2 Calculate the amount of heat evolved when 10g of hydrogen are burned in
5 answers
1,321 views
Given that 277J of heat are absorbed when 1.12g of sodium nitrate are dissolved in water, calculate the heat of reaction.
1 answer
404 views
Ways in which the human or ennvironmental problem impacts on the community.
1 answer
305 views
Write a program that requests the numeric grades on a midterm and a final exam and then uses a Function procedure to assign a
4 answers
1,548 views
the future of embryo
1 answer
290 views
Why do objects in the solar system spin in the same direction?
1 answer
395 views
The following stockholders' equity accounts arranged alphabetically are in the ledger of McGrath Corporation at December 31,
1 answer
395 views
What careers are available for these subjects?
2 answers
480 views
A 5x7 photo us enlarged so that it's new dimensions are 10x14. How does the area of the enlarged photo compare to the area
3 answers
1,589 views
Julie Whiteweiler made $930 this week. Only social security (fully taxable) and federal income taxes attach to her pay.
4 answers
4,804 views
Solve the following system by graphing. If there isn't a unique solution to the system
5x-3y=-36 3x+5y=26
1 answer
486 views
a. Find the marginal tax rate for the following levels of corporate earnings before taxes: $11,000, $81,600, $304,000, $496,000,
1 answer
753 views
The principal powers of Congress include all except
the power of the purse. the power to declare war. implied powers. x the power
2 answers
551 views
s the iron triangle a waste of taxpayer dollars due to overspending?
1 answer
283 views
Two towns A and B are to get their water supply from the same pumping station to be located on the bank of a straight river that
5 answers
3,221 views
A cannon fires a projectile at 75 m/s at an angle of 56.7 above the horizontal. How high does the projectile get off the ground?
4 answers
960 views
if 1.7L of a saturated solution of AgC2H2O2 is found to contain 14.1g of AgC2H3O2. What is the Ksp of AgC2H3O2?
2 answers
517 views
Explain the following:
1) Ethylene, C2H4 is a planar molecule, but hydrazine, N2H4, is not 2) ICl2- is linear, but NH2- is bent
4 answers
4,199 views
A garden has an area of 286ft^2. It's length is 9ft more than its width. What are the dimensions of the garden?
4 answers
1,948 views
A truck can be rented from Company A for $70 a day plus $0.40 per mile. Company B charges $30 a day plus $0.80 per
4 answers
4,623 views
A rectangles length and width are a ratio of 8:5. The area is 169 square millimeters. What are the length and width?
Can anyone
3 answers
486 views
Joe was driving at a rate of 60 mph. As he approached a curve in the road, his speed was 51 mph. What was the % change in Joe's
1 answer
389 views
solve the following literal equation for r
v=pi r^2h I got r=+/- sq root v/pi•h am i done or do i need to eliminate signs?
3 answers
802 views
