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Questions (926)
A certain car is capable of accelerating at a rate of +0.90 m/s2. How long does it take for this car to go from a speed of 35
1 answer
508 views
farmer wishes to fence a rectangular area along the river bank. No fence is required on the side adjacent to the river. The
3 answers
1,729 views
You need to replace the molding around a floor that is 15 ft. long & 23 ft. 6 in. wide. The molding sells for $0.50 per ft.. How
2 answers
790 views
A solution is made by mixing 35.0 mL of toluene C6H5CH3d=0867gmL with 125.0 mL of benzene C6H6d=0874gmL. Assuming that the
1 answer
582 views
The solubility of borax is directly proportional to temperature. Therefore, the sign of H is
A. negative B. positive C. unknown
1 answer
514 views
A solution is made by mixing 35.0 mL of toluene C6H5CH3d=0867gmL with 125.0 mL of benzene C6H6d=0874gmL. Assuming that the
1 answer
603 views
a tourist in framce wasnts to visit 5 different cities. if the route is ransomly selested what is the probability that she will
0 answers
467 views
A plane flies at 1.25 times the speed. It's sonic boom reaches aman on the ground 1.00 min after the plan passes directly
1 answer
867 views
what is an arrangement of quantities whose positions are based upon the natural numbers
1 answer
487 views
A car travels 815 km in 10 days. at this rate, how far would it travel in 20 days?
2 answers
404 views
I have a what looks to be a silver or platinum ring, it has a diamond chip, but not a full diamond to my knowledge. Inside it is
1 answer
419 views
A firm uses a single plant with costs C= 160 +16Q +.1Q2 and faces the price equation P= 96 – .4Q.
a) Find the firm’s
3 answers
2,801 views
A 1000m3 rocket weighing 2.0x10^3 kg is going to be launched into space. On ignition, gas is expelled from the bottom of the
2 answers
663 views
A New Hampshire resort offers year-around activities: in winter, skiing and other cold-weather activities; and in summer, golf,
0 answers
607 views
sold 7500 shares of commond stick at $86 per share, received cash
1 answer
332 views
If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off? I don't
1 answer
468 views
If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off?
1 answer
386 views
If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off?
2 answers
397 views
An investment of $7,800 made March 31, 2001 pays $700 at the end of every six months for five years and pays $10,000 on March
2 answers
407 views
How do you confirm this?
1500000 square miles to 7334000 square miles in six months is growing at about 22 square miles a minute.
1 answer
394 views
Need information on how probation can help in the rehabilitation of juveniles
4 answers
427 views
• Compose a 200- to 300-word response to the following:
• • Explain urban growth trends in the world’s poorest countries.
4 answers
1,179 views
1+1+1=3 cannot be written as a muliplication sentence because there is no equal groups. Do you agree? Explain.
1 answer
542 views
A 1 kg block drops from a table and accelerates towards the floor at 10 m/s2. What is the force?
2 answers
363 views
Are three collinear points are always also coplanar
points.
1 answer
509 views
IF CIRCLE HAS 10 INCH DIAMETER HOW MANY INCHES ARE IN THE CIRCOMFERENCE?
3 answers
752 views
what do you think about the new healthcare reform?
3 answers
403 views
Should dying people be kept on life support?
1 answer
370 views
has anyone done a paper about hospital/clinic that is being renovated or needs re-construction?
0 answers
407 views
find three consecutive positive numbers such that the product of the first and third minus the second, is 1 more than 6 times
3 answers
949 views
Find a linear factorization of:
f(x) = x^3 + 5x - 6. thanks.
1 answer
327 views
Prepare a 1,050- to 1,750-word paper in which you analyze the ethical and legal aspects associated with harrassment, addressing
1 answer
637 views
What is the marginal rate of substitution for U(x,y) = �ãxy? ,�ã(x+y)?
2 answers
427 views
Evaluate the integral: sin^2(5x)cos^2(5x)dx
1 answer
1,041 views
How do I evaluate this integral: x^9cos(x^5)dx
Hint: First make a substitution and then use integration by parts.
1 answer
1,038 views
How do I prepare a solution of 0.0025M Fe3+ by dissolving the appropriate amount of ferric ammonium sulfate in 500 cm^3 of
1 answer
552 views
How long after 7:30 are a clock's minute hand and hour hand 50 degrees apart? The answer is 17.3 minutes, but I don't know how
1 answer
646 views
The half life of Uranium 230 is 20.8 days. How long would it take for 20% of Uranium 230 to decay?
1 answer
408 views
How long after 7:30 are a clock's minute hand and hour hand 50 degrees apart?
1 answer
402 views
A banked circular highway curve is designed for traffic moving at 60 km/h. The radius of the curve is 205 m. Traffic is moving
2 answers
1,574 views
While two forces act on it, a particle is to move at the constant velocity v = (3 m/s) i - (4 m/s) j. One of the forces is F1 =
1 answer
1,089 views
I've been trying to do this problem but I would get confused and stuck..
Consider a sample of a hydrocarbon at 0.959 atm and 298
0 answers
718 views
Question 1
Use the following research question and data for questions 1 - 6. A researcher is examining the effects of a
2 answers
1,770 views
Which sentence is correct the one with or without the comma?
In the beginning there was man. In the beginning, there was no man.
1 answer
397 views
Calculate the energy released in the fusion reaction 2 3 4 1
1 H + 1 H->2 H +0 n. The atomic mass of 3 1 H (tritium is 3.016049
3 answers
854 views
A sample of charcoal from an archaeological site contains 55 g of carbon and decays at a rate of .877 Bq. How old is it?
ok I am
1 answer
2,866 views
A sample of charcoal from an archaeological site contains 55 g of carbon and decays at a rate of .877 Bq. How old is it?
ok I am
0 answers
585 views
A 75 W light source consumes 75 W of electric power. Typically only about 5% of this energy is emitted as visible light of
3 answers
743 views
A laser used to weld detached retinas emits light with a wavelength of 652 nm in pulses that are 20 ms in duration. THe average
1 answer
1,267 views
What is the thinnest film of a coating with n=1.42 on glass n=1.52 for which destructive interference of the red component (650
1 answer
6,533 views
Coherent light of frequency 6.32 * 10^14 Hz passes through two thin slits and falls on a screen 85 cm away. You observe that the
1 answer
2,248 views
Two small stereo speakers A and B that are 1.4 m apart are sending out sound of wavelength 34 cm in all directions and all in
3 answers
1,762 views
What gropu was largely responsible for funding the builing of the railroad system in the U.S.?
3 answers
376 views
A certain digital camera having a lens with focal length 7.5 cm focuses on an object 1.85 m tall that is 4.25 m from the lens.
0 answers
806 views
You want to take a full length photo of your friend who is 2 m tall, using a 35 mm camera having a 50 mm lens. The image
1 answer
2,293 views
You want to take a full length photo of your friend who is 2 m tall, using a 35 mm camera having a 50 mm lens. The image
0 answers
491 views
A certain digital camera having a lens with focal length 7.5 cm focuses on an object 1.85 m tall that is 4.25 m from the lens.
0 answers
685 views
The crystalline lens of the human eye is a double convex lens made of material haveing an index of refraction of 1.44. Its focal
4 answers
2,879 views
A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18 cm. (a)Another car is seen
1 answer
2,754 views
If the critical angle for light at an interface between certain substances is 54.2 degrees, what is the polarizing angle at this
3 answers
569 views
During 2004, japanese scientists successfully tested two solar sails. One had somewhat complicated shape that we shall model as
1 answer
947 views
We can reasonaly model a 75 W incandescent lightbulb as a sphere 6 cm in diameter. Typically, only about 5% of the energy goes
1 answer
1,163 views
Medical x rays are taken with electromagnetic waves having a wavelength around .1 nm. What are the frequency, period, and wave
2 answers
4,650 views
In TV picture, faint, slightly offset ghost images are formed when the signal from the transmitter travels to the receiver both
2 answers
971 views
When a solar flare erupts on the surface of the sun, how many minutes after it occurs does its light show up in an astronomer's
3 answers
1,825 views
What is a current issue between Native Americans and the Federal Government. Indentify the legislation that you think is linked
1 answer
420 views
An inductor used in a dc power supply has an inductance of 12 H and a resistance of 180 ohms and carries a current of .300 A.
1 answer
2,736 views
A transformer consists of 275 primary windings and 834 secondary windings. If the potential difference across the primary coil
1 answer
3,229 views
An inductor used in a dc power supply has an inductance of 12 H and a resistance of 180 ohms and carries a current of .300 A.
1 answer
779 views
A transformer consists of 275 primary windings and 834 secondary windings. If the potential difference across the primary coil
0 answers
610 views
What is the mass in grams of 1.02X10^24 molecules of NaCl?
3 answers
932 views
A closely wound rectangular coil of 80 turns has dimensions of 25 cm by 40 cm. The plane of the coil is rotated from a position
3 answers
1,977 views
A coil of wire with 200 circular turns of radius of 3 cm is in a uniform magnetic field along the axis of the coil. the coil has
1 answer
2,105 views
If a magnetic flux passes through a circular coil when its diameter D, what should be its diameter (in terms of D) so that only
2 answers
540 views
how can i word this differently:
People advise others to stay clear of the horrible consequences of despair.
5 answers
440 views
Can someone please check the grammar in the following sentences. Please.
1. Normally Victor takes pleasure in spending time with
3 answers
425 views
An electron beam of a TV picture tube is accelerated through a potential difference of 2.00 kV. It then passes into a magnetic
1 answer
724 views
when citing long quotes do i put the parentheses with the page # after the period or before?
thanks for ur help.
2 answers
403 views
Is this a strong thesis:
The characters of the novel demonstrate how misery drives people to do things they would not normally
2 answers
447 views
does this need a comma:
Over six billion souls in the world and they all have something in common. Thanks for ur help.
2 answers
420 views
A beam of protons is accelerated through a potential difference of 0.745 kV and then enters a uniform magnetic field traveling
1 answer
1,510 views
HOW AND WHY DID WARFARE CHANGE IN THE 20TH CENTURY?
1 answer
1,034 views
In designing a velocity selector that uses uniform perpendicular electric and magnetic fields, you want to select positive ions
1 answer
1,433 views
What does nature is not benign mean?
1 answer
436 views
The internal resistance of a dry cell increases gradually with age, even though the cell is not used. The emf, however, remains
1 answer
3,049 views
A certain resistor has a resistance of 1.484 omega at 20 degrees celsius and a resistance of 1.512 omega at 34.0 degrees
5 answers
1,713 views
(a) How much charge does a battery have to supply to a 5.0 uF capacitor to create a potential difference of 1.5 V across its
2 answers
3,915 views
A 450 uF capacitor is charged to 295 V. Then a wire is connected between the plates. How many joules of thermal energy are
1 answer
1,163 views
(a) If you use two quarters 2.00 mm apart to make a parallel plate capacitor, what is its capacitance? Measure the necessary
1 answer
497 views
A paralle plate air capacitor has a capacitance of 500.0 pF and a charge of magnitude 0.200 uC on each plate. The plates are 0.6
1 answer
1,872 views
A parallel plate capacitor having plates 6.0 cm apart is connected across the terminals of a 12.0 V battery. (a) Being as
1 answer
2,153 views
A point charge Q= 4.60 uC is held fixed at the origin. A second point charge q=1.20 uC with mass of 2.80 * 10^-4 is placed on
1 answer
2,381 views
A neutral conductor completely encloses a hole inside of it. You observe the outer surface of this conductor carries a charge of
1 answer
1,349 views
During a violent electric storm, a car is struck by a falling high-voltage wire that puts an excess charge of 850 uC on the
1 answer
1,062 views
(a) How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 30.0 cm in diameter
2 answers
2,833 views
ok the question is....A point charge of 8.00 nC is at the center of a cube with sides that are 0.200 m. What is the electric
3 answers
1,573 views
Suppose that the mean number of customers who arrive at the check-out counters each minute is 4. Create a Poisson Distribution
5 answers
1,349 views
The directions say for each of the following use appropriate chem properties to explain the following observations.
What would be
1 answer
476 views
1. In measuring the amount of ATP and NADPH consumed by the Calvin cycle, you find 30,000 molecules of ATP consumed but only
0 answers
550 views
Topic: Waste Minimization
How bad is it locally (USA)?
3 answers
377 views
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