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Maria
Questions (939)
Hair grows about one 1/2 inch each month. After you shave your head how many years will it be until your hair is 1 foot in
2 answers
544 views
Assume that a population size at time t is N(t) and that N(t)=40 x 2^t , t>0.
Show that N(t)=40e^t ln2 Can someone please guide
3 answers
976 views
I'm having some trouble solving this problem:
32x10^2 / (4x10^2)^3 Is it possible to have a negative value in scientific
2 answers
553 views
Consider the sentence "The peace accord proposed that a neutral army be deployed to act as a buffer between two sides of a
1 answer
414 views
How many of the 28 students in Andy's class are boys, if 4/7 are girls?
2 answers
2,442 views
Joe keeps all his socks in one drawer. He has 7 blue socks and 9 brown socks. If he reaches in the drawer without looking, what
2 answers
1,696 views
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of
2 answers
1,000 views
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of
0 answers
758 views
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of
0 answers
617 views
Describe the correlation that exists between the density of a liquid and the float height of a dowel in that liquid.
1 answer
517 views
Susan has three times as many art brushes as Monique. If they have 60 art brushes altogether, how many brushes does Susan have?
1 answer
493 views
The lowest A on a piano has a frequency of 27.5 Hz.
Assume: The tension in the A piano wire (of length 1.8 m) is 305 N, and
0 answers
724 views
Who ruled over Babylon's last era of greatness
0 answers
383 views
How do I find the length of the hypotenuse of a right triangle with only one leg length and all angle measurements
1 answer
1,250 views
Does an object still possess any kinetic or potential energy at absolute zero?
1 answer
442 views
In George Orwell’s “Politics and the English Language” which author is Orwell referring to as “seventeenth-century
1 answer
649 views
In George Orwell’s “Politics and the English Language” what is the “B.B.C. Timidity”?
Thank you.
3 answers
787 views
given: f(x)=x^4-3x^3+2x^2-7x-11 find all roots to the nearest 0.001
1 answer
725 views
A sphere with radius 1m has temperature 15 degrees C. It lies inside a con-
centric sphere with radius 2m and temperature 25
1 answer
5,002 views
Can someone help me with this assignment?
Complete the following for identifying an ethical issue: • Identify an potential
0 answers
899 views
dy/dx=(-8xy^2+4x)(4x+1)y-(8x^3+4x^2-1)
1 answer
605 views
How do you calculate the following:
Starting with a liter of 1M sodium acetate (pka of acetic acid = 4.75 ), calculate the number
1 answer
554 views
How are medical coding, physician, and payer feees related to the compliance process?
0 answers
1,054 views
Find an equivalent expression with the given denominator 4/n=?/n 2power. The expression that is equivalent to 4/n is
1 answer
1,705 views
" four less than twice a number is greater than six " Can someone please write that as an expression ?
3 answers
658 views
Required
a. Determine the gross profit margin for each product produced based on the ABC data [(selling price 2 ABC cost per
0 answers
773 views
A pen placed 13.0 cm from a concave spherical mirror produces a real image 13.5 cm from the mirror.
a) What is the focal length
1 answer
669 views
cash flow analysis of whirlpool cash flow statement for 2006 solution
0 answers
407 views
what is the strict constructionists attitude toward national power
5 answers
479 views
Hi
I'm evaluationg sources and I need help finding out more informatoin on Z.A.B Zeman. IN the book, he said something about
3 answers
455 views
A man jogs along at 1.2 m/s. His dog, playing 36 m behind him, waits for 5 s, then takes off after him at 3.1 m/s.
How far apart
1 answer
468 views
A rope 105 meters long must be cut into pieces that are 2 1/2 meters long. How many pieces of rope are there
1 answer
524 views
Which single factor generally has the greates effect on the climate of an area on the earth's surface?
1 answer
601 views
A flywheel rotates with an angular speed of 26 rev/s. As it is brought to rest with a constant acceleration, it turns 55 rev.
Wha
1 answer
1,707 views
A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?
1 answer
798 views
A 669 g sample of water at 83 degrees celsius is mixed with 486 g of water at 23 degrees celsius. What is the final temperature
1 answer
584 views
Mark has 28 10-cent and 20-cent pieces. How many of each coin does he have if their total value is $4.30?
In a class of 26
1 answer
1,414 views
A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V.
What is the equivalent resistance
4 answers
745 views
Identify which of the following sentences uses modifiers correctly;
a) kurt and his hockey teammates nearly cooked two hundred
5 answers
2,798 views
6x + 2y = -2
4x + y = 1
1 answer
323 views
Hydrazine is used as a rocket fuel. When 1.50 g of hydrazine, N2H4, was burned in a bomb calorimeter, temperature increased from
1 answer
763 views
Determine the heat of combustion of acetylene (C2H2).
1 answer
497 views
The total pressure in an 11.1L automobile tire is 40psi at 13 degree celcius. By how much does the pressure in the tire rise if
1 answer
520 views
A light year is the distance that a light travels through a vacuum (space without matter) in one year. A light year is about
1 answer
1,162 views
If a person had to prove his or her innocence instead of the government how would our legal system differ?
3 answers
436 views
Find x, the angle of depression (measured in degrees) from the top of a lighthouse that is 173 ft above water level to the
2 answers
606 views
A spring has a spring constant, k, of 441 N/m. How much must this spring be stretched to store 22 J of potential energy?
1 answer
1,076 views
find g(1)+g(2)+g(3)+...+g(50) given that g(x)=13-5x
1 answer
637 views
Why should the sodium hydroxide pellets be completely dissolved in the preparation of the NaOH solution?
please explain
3 answers
887 views
The reaction of CO(g) + NO(g) is second-order in NO2 and zero-order in CO at temperatures less than 500K.
(a) Write the rate law
2 answers
2,342 views
Ten kilograms of hydrogen gas are mixed with 355 kg of chlorine in a 0.50 mm^3 drum. The two gases react to produce hydrogen
1 answer
692 views
A negatively charged balloon has 3.1 μC of
charge. How many excess electrons are on this bal- loon? Answer in units of
1 answer
795 views
A negatively charged balloon has 3.1 μC of
charge. How many excess electrons are on this bal- loon? Answer in units of
1 answer
500 views
Calculate the net charge on a substance con-
sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer
0 answers
505 views
Calculate the net charge on a substance con-
sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer
0 answers
603 views
A negatively charged balloon has 3.1 μC of
charge. How many excess electrons are on this bal- loon? Answer in units of
0 answers
645 views
A negatively charged balloon has 3.1 μC of
charge. How many excess electrons are on this bal- loon? Answer in units of
1 answer
2,781 views
A negatively charged balloon has 3.1 μC of
charge. How many excess electrons are on this bal- loon? Answer in units of
0 answers
542 views
A negatively charged balloon has 3.1 μC of
charge. How many excess electrons are on this bal- loon? Answer in units of
0 answers
475 views
A negatively charged balloon has 3.1 μC of
charge. How many excess electrons are on this bal- loon? Answer in units of
0 answers
472 views
Calculate the net charge on a substance con-
sisting of a combination of 1.9 × 10^13 protons and 3.9 × 10^13 electrons. Answer
0 answers
960 views
what is a type III binary compound containing 3 atoms per molecule, with a total # of protons being 32? It's not Silicon
1 answer
751 views
what is a type III binary compound containing 3 atoms per molecule, with a total # of protons being 32? It's not Silicon
1 answer
403 views
Which of the following individuals is thought to be driven by intrinsic needs?
A. Cheerleader B. A junior varsity basketball
2 answers
452 views
The area of ETG is 400 square meters. To the nearest tenth of a meter , what is the length of side EG?
1 answer
422 views
A 255 kg piano slides 4.3 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the
3 answers
570 views
A 255 kg piano slides 4.3 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the
0 answers
574 views
A(n) 0.163 kg baseball is thrown with a speed
of 9.37 m/s. It is hit straight back at the pitcher with a final speed of 16.7 m/s.
1 answer
1,207 views
A ray of light strikes a mirror at an angle of
26� degrees to the normal. What is the angle of reflection? Answer in units of
1 answer
1,093 views
What does mitosis produce and how?
0 answers
383 views
What is a good site for a simple explanation on chromosomes, meiosis, mitosis, etc as it relates to biological psychology? I
1 answer
943 views
Calculate the H3O^+ and OH^- ion concentrations in a solution that has a pH of 3.72.
1 answer
1,174 views
has any one solved the Tampa Tribune Vs. St Petersburg Times game theory problem?
0 answers
446 views
A moving object has a kinetic energy of 138 J
and a momentum of 23.9 kg·m/s. a) Find the speed of the object. Answer in units of
0 answers
505 views
A ray of light is incident at an angle of 51.1� degrees
on the surface of a piece of crown glass whose index of refraction is
2 answers
1,172 views
A ray of light has an angle of incidence of 30.4� degrees
on a block of quartz and an angle of refraction of 20.7� degrees. What
2 answers
4,253 views
If the speed of light through material Z is
2.5×10^8 m/s, what is this material’s index of refraction? The speed of light in a
2 answers
7,180 views
A sound wave traveling at 342 m/s is emitted
by the foghorn of a tugboat. An echo is heard 2.50 s later. How far away is the
1 answer
1,356 views
A moving object has a kinetic energy of 138 J
and a momentum of 23.9 kg·m/s. a) Find the speed of the object. Answer in units of
0 answers
502 views
A ray of light has an angle of incidence of 30.4� degrees
on a block of quartz and an angle of refraction of 20.7� degrees. What
1 answer
600 views
If the speed of light through material Z is
2.5×108 m/s, what is this material’s index of refraction? The speed of light in a
1 answer
1,156 views
At quantity of 8000, TR 3625, TC 3310, MR 100, MC 22 How many papers should the manager of El Dorado Star print and sell daily
1 answer
387 views
what does the author of "the real story of jamestown" argue is the most tremendous change in the world next to the extinction of
0 answers
453 views
need to find the mystery phrase made from the following letters
DNALFOSSERGORPEGA
1 answer
445 views
A glacier moves with a speed of 42 nm/s.
How many years would it take for the glacier to move 0.78 km? Answer in units of yr.
0 answers
541 views
A glacier moves with a speed of 42 nm/s.
How many years would it take for the glacier to move 0.78 km? Answer in units of yr.
0 answers
483 views
A glacier moves with a speed of 42 nm/s.
How many years would it take for the glacier to move 0.78 km? Answer in units of yr.
0 answers
591 views
the price of labor is $100 per unit and the price of capital is $20 per unit. What will the long-run total cost and long-run
0 answers
938 views
The engines of a 1.20 x 10^5 N rocket exert an upward thrust of 2.00 x 10^5 N for 1.50 minutes upon lift off.
What is the impulse
0 answers
968 views
Write a 4 bar piano piece in d harmonic minor. Use full cadence.
0 answers
835 views
Write a 4 bar piece in e harmonic minor. Use and label one diminished triad. Copy the melody into six other clefs.
0 answers
412 views
Some individuals prefer to have their employers withhold more money than they will owe so they can get big refund checks in
0 answers
884 views
Light bulbs emit a broad spectrum of light; that is, they emit photons with a broad range of wavelengths. Suppose that 10% of
1 answer
588 views
(a) The characteristic emission from Ca occurs at 422.7 nm and corresponds to an electron going from a 4p orbital to a 4s
0 answers
1,075 views
Hydrogen-like ions are those with only one electron such as He+ and Li2+. The Balmer formula for the transitions in these ions
1 answer
594 views
Suppose a sample of hydrogen gas is excited to the n=5 level. As the atoms return to the ground state (Balmer series), they emit
1 answer
676 views
Calculate the energy (in eV) of the three lowest energy transitions in the Lyman series (the series that ends on n=1) of
1 answer
659 views
A tube containing hydrogen atoms in the n=3 shell does not absorb visible light. The longest wavelength absorbed is 1875 nm.
1 answer
954 views
We encounter a large number of waves every day without realizing it. One such source is radio waves. A typical frequency for
1 answer
1,197 views
Excited lithium atoms emit radiation at 670.8nm.
a. calculate the frequency of this radiation. b. calculate the energy (in eV) of
1 answer
577 views
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