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James
Questions (1,502)
Describe an infinite geometric series with a beginning value of 2 that converges to 10. What are the first 4 terms of the
1 answer
946 views
The 25-lbf block has an initial speed for v0 = 10 ft/s when it is midway between springs A and B. The coefficient of static and
0 answers
803 views
Do you know if there is an online tutorial for the book Office 2013 Marquee by Rutosky, Sequin, Roggenkamp, Rutosky
2 answers
455 views
Alfred and Bob toss a coin alternatively, and whoever gets a head first will win. They play many times and whoever loses in the
3 answers
676 views
A 7.1 kg watermelon is placed at one end
of a 5.9 m, 244 N scaffolding supported by two cables. One supporting cable is at the
0 answers
1,203 views
Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M TI3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find
0 answers
654 views
Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M Ti3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find
1 answer
1,104 views
Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M Ti3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find
0 answers
698 views
The distribution co-efficient of butanoic acid (pKa = 4.8) between water and two organic solvents are given below;
Benzene D= 3.0
1 answer
598 views
The distribution co-efficient of butanoic acid (pKa = 4.8) between water and two organic solvents are given below;
Benzene D= 3.0
1 answer
621 views
Imagine that you have a 7.00L gas tank and a 4.00L gas tank. You need to fill one tank with oxygen and the other with acetylene
5 answers
3,026 views
The thickness of a pure Ag plate on a base metal is to be determined by controlled potential coulometry. The metal sheet is
1 answer
645 views
6 9/8-25/6=
1 answer
322 views
For the curve f(x)=x ln x+(1-x)ln(1-x), find the value of x in the interval 0<x<1 where f(x) has a minimum.
1 answer
475 views
If 25.00 ml of H2SO4 solution is titrated to an end point with 32.16 ml of 0.1986 M NaOH, what is the molarity(M) of the H2SO4
1 answer
519 views
Which of the following factors affect the solubitity?
a)temperature of the solutions b)polarity of the solvent vs solute
0 answers
457 views
A boy is dividing M&Ms between himself and his sister. He gives 2 to his sister and takes 2 for himself. He gives 2 to his
2 answers
1,150 views
A ball of mass m is attached to a spring with a spring constant k. The system is attached to a thin vertical axis as shown in
0 answers
750 views
A force of 1.24 N pushes against an object with a mass of 0.16 kg for 3.00 min. The object does not move. What is the work done
1 answer
591 views
Limit(7x+6x^2) / (7x^2+6x)
x->inf
1 answer
377 views
Are Ethnic Groups the same as Societies?
3 answers
463 views
A man has $210,000 invested in three properties. One earns 12%, one 10% and one 8%. His annual income from the properties is
2 answers
4,866 views
The slope of the line tangent to the curve xy+(y+1)^2=6 at the point (2, 1) is
1 answer
611 views
Provide the name(s) for the branched constitutional isomer(s) with the molecular formula C7H16 that have three methyl groups.
1 answer
1,320 views
Provide the name(s) for the branched constitutional isomer(s) with the molecular formula C7H16 that have three methyl groups.
0 answers
1,031 views
A stone was dropped off a cliff and hit the ground with a speed of 112 ft/s. What is the height of the cliff? (Use 32 ft/s2 for
1 answer
1,605 views
A particle is moving with the given data. Find the position of the particle.
v(t) = 1.5sqrt(t), s(9) = 33
1 answer
3,608 views
How has Mexico's culture been shaped by conflict among different people?
0 answers
617 views
3. After removing membranes from an eggshell, the shell is dried and its mass is recorded as 5.613 g. The egg is transferred to
3 answers
3,201 views
Write neutralization reactions for each of the following acids and bases.
HNO3(aq) and Ba(OH)2(aq) Express your answer as a
3 answers
1,275 views
Question: Write a word problem using 7 groups. And then solve the problem
Can you give an example?
2 answers
825 views
A cannon is fired from the ground at an angle of 30 degrees. It is being shot an an initial velocity of 200m/s. What is the
3 answers
3,603 views
Hi, I'm working on this piece of code:
numLaptops = 7 laptopCost = 599.50 price = numLaptops * laptopCost print("Total cost of
2 answers
453 views
A chemist wants to make 5.50 L of a 0.300 M lithium phosphate solution. What mass of lithium phosphate must be used to make this
1 answer
471 views
Suppose that the amount of time it takes the IRS to refund to taxpayers is normally distributed with a mean of 12 weeks and a
1 answer
601 views
A lamp post 3m high is 6m from a wall. A 2m man tall is walking directly from the post toward at 2.5m/s. How fast is his 1.5
3 answers
1,929 views
a sample of freon-12 occupies 25.5 litters at 28 celsius find its volume at 15 degree celcius when the pressure is kept constant
1 answer
710 views
A water balloon is launched at a building 24m away with an initial velocity of 18 m/s at an angle of 50° above the horizontal.
2 answers
1,711 views
A water balloon is launched at a building 24m away with an initial velocity of 18 m/s at an angle of 50° above the horizontal.
1 answer
1,506 views
how to calculate the weight of solute req'd to prepare 1 liter of 1 normal of:
a.) LiOH b.) phosphoric acid HELP.
0 answers
389 views
A plane starts from rest at the end of a runway and requires 200.0 km/h for takeoff . If it takes 30.0 a to reach takeoff speed,
1 answer
817 views
A bank account is growing by 4.3 % per year. Find the doubling time.
Round your answer to the nearest integer. Can someone
2 answers
1,364 views
Use the Rule of 70 to estimate how long it takes a dollar-sign 7000 investment to double if it grows at the annual rate 7 %.
1 answer
838 views
Using the following cash flows for projects A and B, use payback period, discounted payback period, NPV, IRR, and MIRR to see if
0 answers
757 views
A ball is thrown so that the motion is defined by the equations x=5t and y=2+6t-4.9t^2, where x and y are expressed in meters
2 answers
1,475 views
An airport has runways only 196 m long. A
small plane must reach a ground speed of 38 m/s before it can become airborne. What
0 answers
776 views
I have been out of school 27 years; no Algebra or Trigonometry training: only remedial math.
This class is part of a Diploma
1 answer
603 views
Determine the number of protons and electrons in each of the following ions.
Na+ Enter your answers numerically separated by a
1 answer
971 views
Using the factoring method, solve for the roots of quadratic equation
4x^2=16
1 answer
490 views
Factor by using the difference of two square formula
1-25z^2
1 answer
414 views
A box is at rest on a 34incline. what is the force of friction parallel to the ramp if box has a mass of 50-kg
1 answer
396 views
When the perimeter of an equilateral triangle is doubled, the result is 24. The length of a side of the original triangle is
A. 4
4 answers
1,252 views
What's 25 inch by 12 1/2
1 answer
401 views
Your program has a proposed RDT&E-funded project scheduled to start in January 2005 which is expected to take 16 months to
0 answers
621 views
Determine the electric force of a -8.0uc charge would experience when placed 14cm to the left of a 5.0uc charge.
got 18N, but I'm
0 answers
561 views
Write the quadratic function in standard form (if necessary) and sketch its graph.
Identify the vertex. f(x)=x^2+3x+1/4
1 answer
711 views
a 50kg mass is suspended from a spring, causing it to extend by 30mm. calceolate the spring stiffness?
The mass is then pulled
0 answers
574 views
Pretty Lady Cosmetic Products has an average production process time of 40 days. Finished foods are kept on hand for an average
1 answer
1,639 views
A small charge that has lost 5.0 X 10^3 electrons and has a mass of 2.0 x 10^-6 kg experiences an acceleration of 15ms^2 when
4 answers
547 views
Determine the final velocity of an alpha particle (3.2x10^-19) if it is placed in a 7.2x10^6 n/c uniform field. The mass of the
4 answers
719 views
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution containing
0 answers
1,215 views
The Fridge-Air Company's preferred stock pays a dividend of $4.50 per share annually. If the required rate of return on
1 answer
951 views
Ti'a rectangular gaden has perimeter of 20 meters. She wants its area to be at least 24 square metesr. Find the interval for the
3 answers
760 views
A glass held 2/5 cup of water, Carlo poured out 3/8 cup, how much is left?
3 answers
758 views
Did I ionize Mn2(CO3)3 correctly?
Mn2(CO3)3 --> 2Mn^(3+) + 3CO3^(2-)
1 answer
747 views
At which points do the lines intersect
2x+y=8 y=-3(x-3) A. 0,8 B. 3,-2 C. 2,4 D. 1,6
2 answers
438 views
One way to measure the validity of a test would be to: you were testing for:
2 answers
453 views
Can I get some corrections?
1. ¿Qué estás haciendo? A. Estás sirviendo la cena. B. Estáis leyendo el texto. C. Me estoy
2 answers
862 views
In the spectrum of a specific element, there is a line with a wavelength of 656 nm. Use the Rydberg equation to calculate the
1 answer
1,131 views
Rewrite the equation in Ax+By=C form.
Use integers for A, B, and C. y-5=-5(x-2)
1 answer
3,311 views
Keiko is a software saleswoman. Let represent her total pay (in dollars). Let represent the number of copies of History is Fun
1 answer
1,237 views
A dike in Holland springs a leak through a hole of area 0.60cm2 at a depth of 1.4m below the water surface.
How much force must a
2 answers
905 views
Calculate the average force per nail when Sarah (following figure), who weighs 130 pounds, lies on a bed of nails and is
0 answers
539 views
The top floor of a building is 40m above the basement. Calculate how much greater the water pressure is in the basement than on
1 answer
609 views
Calculate the water pressure at the base of the Hoover Dam. The depth of water behind the dam is 220m .
Express your answer to
1 answer
1,397 views
Pressure = weight density × depth
Calculate the water pressure at the bottom of the 50-m-high water tower shown in the photo.
0 answers
572 views
An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The
0 answers
788 views
An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length L. The
2 answers
3,517 views
The diameter of the base of a tapered drinking cup is 6.6cm . The diameter of its mouth is 9.8cm . The path of the cup curves
3 answers
3,868 views
Calculate the tension in a horizontal string that whirls a 1.9-kg toy in a circle of radius 2.3m when it moves at 2.8m/s on an
1 answer
2,170 views
A Plane flies north at 215 km/h. A wind from the east blows at 69km/h. What is the plane's new velocity with respect to the
3 answers
2,345 views
Suppose you tried to carry out a double replacement reaction by mixing equal voulumes of a solution that contains dissolved NAOH
1 answer
1,923 views
The coefficient of static friction between the m = 3.20-kg crate and the 35.0° incline of the figure below is 0.260. What
1 answer
1,704 views
Need help with this problem: Isolate the variable: -4(2x - 7) = -36
2 answers
430 views
Need help with a few: Perform the indicated operation. Write your answer in simplest form: 4|5 / 20|3
2 answers
565 views
1. A buffer was prepared by dissolving 11.7 g of KH2PO4 in 400 mL of water, and with the addition of concentrated solution of
3 answers
693 views
A block weighing 71.5 N rests on a plane inclined at 24.1° to the horizontal. The coefficient of the static and kinetic
1 answer
692 views
A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 21.0° below the horizontal. The negligent
2 answers
1,234 views
Which statement best describes the composition of magma?
2 answers
711 views
An electron with speed 2.35×107m/s is traveling parallel to a uniform electric field of magnitude 1.16×104N/C .
How far will
2 answers
8,032 views
If the total positive charge is Q = 1.62×10−6C , what is the magnitude of the electric field caused by this charge at point
1 answer
3,281 views
What is the magnitude of the electric field a distance 3.0mm from an electron?
Express your answer to two significant figures and
1 answer
598 views
Two small charged balls have a repulsive force of 0.20N when they are separated by a distance of 0.90m . The balls are moved
1 answer
1,063 views
Three charges are fixed in the x−y plane as follows: 1.5nC at the origin (0, 0); 2.6nC at (0.65m , 0); –1.8nC nC at (0,
0 answers
759 views
Three charges are fixed in the x−y plane as follows: 1.7nC at the origin (0, 0); 2.3nC at (0.60m , 0); –2.0nC at (0, 1.20m
1 answer
630 views
What is the net force exerted by these two charges on a third charge q 3 = 45.0nC placed between q 1 and q 2 at x 3 = -1.145m ?
Y
0 answers
1,139 views
Two Ping-Pong balls each have a mass of 2.6g and carry a net charge of 0.500ìC . One ball is held fixed.
At what height should
1 answer
866 views
A free electron and a free proton are exactly 0.70cm apart.
Find the magnitude of the acceleration of the proton. Express your
1 answer
568 views
Two small spheres spaced 20.0 centimeters apart have equal charge.
How many excess electrons must be present on each sphere if
1 answer
1,445 views
How much charge is contained in 9kg of protons?
Express your answer to two significant figures and include the appropriate units.
1 answer
491 views
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