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Chris
Questions and answers by
Chris
, page 7
Questions (1,410)
Find the linear speed of the bottom of a test tube in a centrifuge if the centripetal acceleration there is 5.1×104 times the
1 answer
503 views
What stands on a hill called acropolis in for 2500 years in Greece
1 answer
485 views
Michelson used a rotating eight sided mirrored "wheel" to determine speed of light. In this case the mirror is rotated at a
1 answer
486 views
Classify triangle ABC by its sides if side AB = 6x, side AC = 4x + 6 and side BC = 8x + 3. The perimeter of triangle ABC is 63.
2 answers
1,191 views
I have a compound (mx)
weak acid (x- = Hx) mx in 5M strong acid solution solubility = 5x10(-3) Ksp = 1x10(-20) Find Ka... I need
1 answer
472 views
Solve sqrt:9x+55=x+5, Simplify and use comma to separate the answers
1 answer
410 views
Add, simplify if possible
4y/y^2-9 + y/y-3
1 answer
314 views
Solve and simplify:
x^2+14x-4=0
1 answer
326 views
Soldiers carried several days cold nations. should days chage to a possessive noun from days to days'
2 answers
523 views
what is a dilute solution
1 answer
287 views
An oil whose density is 0.775g/mL was used in a open-end manometer to measure the pressure of a gas in a flask, as shown in
2 answers
670 views
A 450 kg spherical mass is placed 4.40 meters away from a 550 kg spherical mass. What is the magnitude of the gravitational
1 answer
677 views
which one is correct:
1. the box contains two slides labeled "A" or "B" 2. the box contains two slides labeled "A" and "B"
4 answers
337 views
Ms. Sue, thanks for your answer. Is there a rule in grammar that I can use to convince someone that #2 is correct?
Which one is
1 answer
331 views
Air dry weight of MgNH4Po4 * 6 H2O
1 answer
323 views
Volume of 0.185 mol . L-1 and 0.74 M
1 answer
295 views
A rancher plans to set aside a rectangular region of one square kilometer for cattle and wishes to build a wooden fence to
2 answers
548 views
Damon, Help :)
A rancher plans to set aside a rectangular region of one square kilometer for cattle and wishes to build a wooden
2 answers
521 views
Damon help again :) (last one I promise)
why is X along the road sqrt2/2? ] A rancher plans to set aside a rectangular region of
4 answers
501 views
A glass window 0.50 cm thick measures 86 cm by 31 .
How much heat flows through this window per minute if the inside and outside
3 answers
1,255 views
How do the components and processes of communication apply to the electrnic/computer channel?
7 answers
358 views
A small ball is launched at an angle of 30.0 degrees about the horizontal. It reaches a maximum height of 2.5m with a respect to
2 answers
990 views
In a right triangle, CT = 6, CA = 3, and m<CAT = 90. What is the value of cot C ?
CT= hypo CA= Opp.
2 answers
971 views
"Two cars are traveling along perpendicular roads, car A at 40mph, car B at 60mph. At noon, when car A reaches the intersection,
3 answers
3,439 views
A particle is at rest at the apex A of a smooth fixed hemisphere whose base is horizontal. The hemisphere has centre O and
4 answers
870 views
A smooth plane AB is 10 meters long, It is inclined at 30 degrees to the horizontal with the lower end, B, 6 meteres vertically
2 answers
667 views
Hi,
I am trying to analyze this poem. It is called "On watching politicians perform at Martin Luther king's funeral". It is by
2 answers
681 views
i need to know how to do (4m -3power n5power)0 / mn
1 answer
250 views
the green bay packers ordered roast beef subs and turkey subs for lunch. a total of 53 subs were ordered. the number of roast
1 answer
482 views
You push a 2.5 kg block against a horizontal spring, compressing the spring by 16 cm. Then you release the block, and the spring
2 answers
608 views
Solve: 3 - x = 12(x - 1)
Is the correct answer x = 15/13?
3 answers
329 views
Solve:
2/12x-3/12=8/12 Is x = 11/2 the correct answer?
3 answers
296 views
An 840 Kg roller coaster car is launched from a giant spring of constant k=31 kN/m into a frictionless loop-the-loop track of
4 answers
2,978 views
Write the dissociation reaction and the corresponding Ka equilibrium expression for each of the following acids in water. (Use
3 answers
3,054 views
A 25.00 mL sample of H3PO4(aq) requires 31.05 mL of 0.2410 M KOH for titration to the second equivalence point.
What is the
2 answers
740 views
Calculate the pH of a 5.90x10-3 M solution of H2SO4.
1 answer
396 views
Calculate the [H+], [OH ‾ ], and the pH of 0.16 M solutions of:
hydroxylamine (HONH2, Kb = 1.1 10-8)
2 answers
985 views
A car cost $65 per day to rent plus $.35 per mile. Joe rents car for 1 day and drives 115 miles. what is the equation and the
4 answers
288 views
Using terms of equilibrium, what is the difference between spilling a glass of milk versus ozone eminating from your copy
1 answer
312 views
A 0.23 kg ball of dough is thrown straight up into the air with an initial velocity of 12 m/s.Find the momentum of the ball of
4 answers
1,024 views
Square root of 12 using prime factor form? Square root of 320 using prime factor form?
Square root of 36 using prime factor form?
1 answer
395 views
Consider a Cournot duopoly with the following inverse demand function: P = 50 - 0.2Q1 - 0.2Q2. The firms' marginal cost are
3 answers
1,616 views
Two identical firms compete as a Cournot duopoly. The demand they face is P = 100 - 2Q. The cost function for each firm is C(Q)
4 answers
1,599 views
The spirit of equating marginal cost with marginal revenue is not held by
a.perfectly competitive firms. b.oligopolistic firms.
4 answers
1,283 views
Calculate AMA given μk = 0.019 and an angle of 11 degrees.
3 answers
378 views
how do you dilate a figure under 1
1 answer
222 views
6 1/2 joules. particles looses 0.08 joule of energy every 15 seconds what will energy after 4 minutes.
Would this be 6 1/2 - 1.28
1 answer
274 views
Find the volume of the solid formed when the area bounded by x^2-y^2=9, y=x+5, and the x axis is rotated about x=1.
5 answers
470 views
Jack’s ACT score is 30. Jason’s SAT score is 950. Who did better?
The mean SAT score is 1000 with a standard deviation of 100
1 answer
488 views
Suppose that SAT scores among U.S. college students are normally distributed with a mean of 450 and a standard deviation of 150.
2 answers
849 views
Suppose that a sample of n = 1,600 tires of the same type are obtained at random from an ongoing production process in which 8%
3 answers
667 views
Suppose that a sample of n = 1,600 tires of the same type are obtained at random from an ongoing production process in which 8%
2 answers
854 views
Assume that a sample is used to estimate a population proportion p. Find the margin of error. 95% confidence; n = 250, x = 130
1 answer
482 views
A warranty identification number for a certain product consists of a letter of the alphabet followed by a seven-digit number.
6 answers
5,325 views
1. What is the pH of a solution whose [H3O+] is 1 X 10^ -5 M?
2. What is the [H3O+] concentration of a solution with a pH of 9?
4 answers
3,473 views
can you guys help me with this one problem? Thanks a bunch!
Problem: Draw a circle whose center is at (1,2) so that the point
1 answer
353 views
A pendulum is composed of a mass m suspended from the ceiling by a massless string of length L. If the mass is pulled back so
2 answers
593 views
A massless string is wrapped around a cylinder of mass 0.400 kg and radius 0.100 m. The string is attached to the ceiling. The
5 answers
1,070 views
Find a six-digit even number containing no zeros and no repeating digits in which the first digit is four more than the second
2 answers
1,104 views
Hello! I am doing a presentation on the green sea turtle. I unsure what part of "green sea turtle" should be capitalized if at
4 answers
620 views
We apply the same amount of energy to 10.0-g samples of aluminum, and silver which begin at the same
temperature.Rank the metals
4 answers
1,144 views
f(x)=x^3 + sin x
So far.. I've heard it's neither.. But how? Thanks
3 answers
287 views
Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be
1 answer
528 views
Convert the following credit card rate to the APR. Nebraska, 0.04110% daily rate. (Round your answer to the nearest whole
1 answer
347 views
The vector F is (12.0, −3.00) in rectangular notation. What is this same vector in polar notation? Express the angle as a
2 answers
621 views
A particle travels counterclockwise around the origin at constant speed in a circular path that has a diameter of 2.50 m, going
2 answers
559 views
An applied force accelerates a 50-kg crate along a frictionless floor from rest to 5 m/s.The work performed by this force is
3 answers
1,051 views
Her are the data on $1000 par value bonds issued by Microsoft, Ford, and Xerox at the end of 2008, Assume you are thinking about
1 answer
1,159 views
You have finally saved 10,000 and are ready to make your first investment. You have the three following alternatives for
2 answers
708 views
A dancer completes 3.4 revolutions in a pirouette. What is her angular displacement?
Help me get this answer please.
2 answers
1,098 views
A dancer completes 3.4 revolutions in a pirouette. What is her angular displacement? In rad.
1 answer
825 views
The figure shows a uniform disk with a circular hole cut out of it. The disk has a radius of 4.00 m. The hole's center is at
3 answers
750 views
A wave is described by the equation y = (4.5×10−2) sin (1.9x − 3.2t), where lengths are measured in meters and time in
2 answers
568 views
You need to make 4200 mL of 0.450 M CuSO4. How many grams of CuSO4 do you need?
4 answers
366 views
A 565 N mountain climber moves across a rope strung across a canyon. When she is more than halfway across, she notices the rope
1 answer
424 views
Making Sure these are right?
absolute value: 1.|7x+2|=10 x=1.1 x=1.7 2.|3x-5|=-1 x=1.3 x=2
3 answers
262 views
HELP?!
1.-9^2 2.(5x^9y)(-2x^-2y^-3) 3.(a^1b^-2) / (a^-2b^4) 4.(7x^-1/y^4)^-2 Scientific notation: 5) .0000745 Decimal Form: 6)
1 answer
308 views
How do I do 21 - y, explain
1 answer
336 views
I am having trouble figuring out this question:
My quotient is 1 more than 30/5. My remainder is 2. What division sentence am I?
1 answer
492 views
a rare truffle once sold for 13 dollars and 20 cents for a 0.44 ounce can how much would 1 a pound be
1 answer
368 views
What is the midpoint of line BC with B (2,0) and C (-4,6)?
3 answers
363 views
when the cost of a car is multiplied by 0.07 the results is $1710. Find the cost of the car.
4 answers
420 views
An open top box is made by cutting congruent squares from the corners of a 12 inch by 9 inch sheet of cardboard and then folding
1 answer
905 views
Use the figure below in which ec bisects ad at c. Find the value of x and the measure of the indicated segment.
1 answer
455 views
what are the number of digits in a measurement that are known with a certain degree of reliability?
1 answer
380 views
5/6 is exivalent to? 0.85 is exivalent to? 3/4 is exivalent to? And 0.9 is exivalent to?
1 answer
266 views
What is 3/4 exivalent to? And 0.9 is exivalent to?(:
1 answer
294 views
In a stunt for an action movie, the 100 kg actor jumps from a train which is crossing a river bridge. On the river below, the
3 answers
1,088 views
Can someone check my answers for me?
True or False... 1. TRUE you should use a comma before the word “and.” 2. FALSE The
5 answers
1,122 views
Ling bought 5 dishes and 9 glasses for $25.50. Each glass cost 50¢ cents more than each dish. How much did Ling spend the
3 answers
367 views
. The cheetah is the fastest running animal in the world. Cheetahs can accelerate to a speed of 20 m/s in 2.5 an can continue to
1 answer
1,119 views
Chris is shopping for CDs and decides to purchase 3 movie soundtracks. The store has 9 different movie sountracks in stock. How
2 answers
469 views
N/5-9=1/5
1 answer
206 views
-2 - radical bar 5 over
radical bar 10 simplify
1 answer
255 views
How to do significant values in Chemistry?
I am totally stuck; I have no idea what to do? My teacher gave me C due to the
1 answer
408 views
Calculate the pH of 7.2 × 10-8 M HCl. Report your answer to the hundredths place. Next, What fraction of the total H in this
6 answers
6,070 views
Calculate the pH of 7.2 × 10-8 M HCl. Report your answer to the hundredths place. Next, What fraction of the total H in this
2 answers
784 views
Which statement illustrates the additive identity?
a)3+0=3 b)3-3=0 c)3*0=0 d)3*1=3
2 answers
883 views
If a stake is placed in the ground and is 20cm. high and casts a shadow 12.5 cm. long, what time is it? (The sun rises at 6 a.m.
2 answers
758 views
-0.1<=y<=0.1
<= means less than or equal to So if I break the statement up is y <= -0.1 y>=0.1 Correct? Please help I'm confused.
1 answer
339 views
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