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Luke
Questions and answers by visitors named
Luke
Questions (209)
If $800 is deposited into an account that pays 6%/a compounded monthly, how many months will it take the investment to grow to
5 answers
asked by
Luke
1,981 views
Two tetrahedral dice are thrown; one is red and the other is blue . The number on which each lands is noted, the faces being
3 answers
1,251 views
Use an enthalpy diagram to calculate the lattice energy of CaCl2 from the following information. Energy needed to vaporize one
5 answers
6,795 views
John is at a local bait shop; he wants to buy bait for his fishing trip. At the store, they are selling live bait for $12 a
4 answers
1,090 views
A 20-foot-long footbridge has two diagonal supports that meet in the center of the bridge. Each support makes a 65∘ angle with
5 answers
1,882 views
When 1.0 mol of ammonia gas in injected into a o.50L flask, the following reaction proceeds to equilibrium.
2NH3 <--> N2 (g) +
1 answer
816 views
Hi how would i solve this??
The equation of the cirlce is x^2+y^2-4x+2y=0. Determine the coordinates of the center and the radius
1 answer
292 views
what would x^2+y^2-4x+2y=0 (Equation for a cirlce) be in
r^2=(x-h)^2(y-k)^2 form? tnx I will start you off... x^2+y^2-4x+2y=0
1 answer
285 views
One of the countries in Central America uses Spanish as the official language of the country but also has 23 different Maya
4 answers
626 views
Find the value of z. Then find GE and EH and state whether E is the midpoint of line GH. GH = z + 6. EH =2z-4. GE=z.
1 answer
503 views
How do you divide a hexagon into 9 congruent parts?
3 answers
1,191 views
Predict the sign of ( ∆H) in each of the following reactions:
NH3 (g) + HCl (g) NH4Cl(s) ∆S = +, ∆G = - Fe (s) + Cu+2 (aq)
1 answer
431 views
Predict the sign of ( ∆H) in each of the following reactions:
NH3 (g) + HCl (g) NH4Cl(s) ∆S = +, ∆G = - Fe (s) + Cu+2 (aq)
1 answer
480 views
a person who studies and collects rocks for fun
3 answers
688 views
A man is on his hands and knees looking for a £5 note he has dropped. His search for the fiver continues for some time. Finally
4 answers
379 views
For the gaseous equilibrium represented below, it is observed that greater amounts of PCl3 and Cl2 are produced as the
3 answers
1,398 views
There is a long fence along the border of 2 mens property. 1 man is using the existing fence to make a cattle pen. He has 500 ft
1 answer
445 views
first of all this is my first time so i don't know if i am doing it right. I need help i have holiday homework that i need to do
2 answers
1,207 views
Please faCtor. Thank you for your help.
a^2 + 4a + 21
7 answers
266 views
Can someone help me solve this and break it down step by step please???
[Sqrt(x-3)]-[Sqrt(x+2)]=3
1 answer
388 views
I would really appreciate it someone helped me with this information.
1. Solve the inequality: |3 - 3x/4| >= 9 Solve for x 2.(x -
9 answers
388 views
How to get pure gold from impure gold..please specify the chemical equation.. any example is fine,e.g. AuCl3 -> Au
3 answers
432 views
What experiment(apparatus can be made) can be used to determine the relationship between period and frequency of vibration?
4 answers
454 views
Solving part of a part. How do you use thermometers to solve fraction problems?
1 answer
365 views
I know its true but why?
When you multiply a whole number by a whole number the result is a larger number. When you multiply
4 answers
484 views
Three forces acting on an object are given by F1 = (-8.79i + 8.34j) N, F2 = (7.06i + -3.02j) N, and F3 = (-3.05i) N. The object
3 answers
519 views
A fire helicopter carries a 615 kg bucket of water at the end of a cable 19.5 m long. As the aircraft flies back from a fire at
5 answers
1,185 views
A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis. Its
2 answers
583 views
Estimate the terminal speed of a wooden sphere (density 0.700 g/cm3) falling through air if its radius is 3.20 cm and its drag
2 answers
542 views
If it takes 4.12 J of work to stretch a Hooke's law spring 12.1 cm from its unstressed length, determine the extra work required
4 answers
852 views
A potential energy function for a two-dimensional force is of the form U = 2.46x3 y - 5.05x (which has units of J). Calculate
2 answers
508 views
in regard to the reverse freezing process of water(when it expands) and others molecules contract.. is it only water that does
1 answer
342 views
Why is it not possible to formulate a model that accurately represents reality
1 answer
405 views
A building is the shape of an airplane hanger (a half cylinder). Construction for the foundation (rectangular part) costs $30
4 answers
1,274 views
Why have the people of West Africa started to work at the local level to help their economies?
6 answers
411 views
exact value for tan(7pi/6 radians)
3 answers
449 views
if f(x)=1-3x/2+x find an exact value of
f(-1/2)
1 answer
258 views
make f the subject of the formula:
D=square root p/f-p
1 answer
387 views
Make f the subject of the formula
D = squareroot p/f-p
3 answers
368 views
g is a linear function such that
g(1)=7.5 and g(7)=12.6 Find the formula for g(x). I've tried doing it and the formula i got was:
1 answer
317 views
Make f the subject of the formula
D = √(p/f-p)
1 answer
352 views
Identify 4 objects in the grocery store that hold lress than 10 milliters
1 answer
327 views
solve the equation
5 - √x = 2x^2 - 3
1 answer
237 views
if M = 3 x 6 ^ (-t)
find the half life of M
1 answer
278 views
find the amplitude and period of:
2 cos4x + 5 sin4x
1 answer
425 views
I am trying to tell the difference between trade credit and opportunity costs, but now liking what I find on the internet. Is
1 answer
779 views
I have a data set for MLB teams. the assignment is to form a hypothesis based on the set.
h0- Teams with higher attendance will
1 answer
328 views
Does the size of a 1,5V cell(battery) affect the internal resistance of a circuit containing: 3 different size
2 answers
487 views
Does the size of a 1,5V cell(battery) affect the internal resistance of a circuit containing: 3 different size
2 answers
723 views
Hey i need some assistance with translating this sentence thanks.
Urbs Troja dicitur decem annos a Graecis oppugnata esse. thanks
7 answers
995 views
What do you think was Lance Armstrongs purpose in writing his book Its Not About The Bike?
1 answer
368 views
Find (A �¿ B) �¿ C, given A = {s, e, t}, B = {m, e}, and C = {f, r, e, e}.
1 answer
310 views
Provide the missing representations.
Visual: ? Numerical: ? Graphic:-|--|--|--|--|--|--?--|--|--| 0 1 2 3
1 answer
325 views
Find (A upside down U B) upside down U C, given
A = {s,e,t} B = {m,E} C = {f,r,e,e,}
4 answers
3,484 views
Name the property of addition that has been applied.
(8+2)+ 2 = 8 + (2 + 2)
1 answer
322 views
Write the statement indicated. Write the negation of the following.
A happy face is a smiling face.
3 answers
451 views
What does a ~ line above a = sign mean in Geomentry,
1 answer
293 views
Scientists are researching a contagious disease. They found that, on average, each person who is infected transmits the disease
2 answers
593 views
A solution contains .370 mol of isopropanol (C3H7OH) dissolved in 1.700 mol of water. What is the mass percent of isopropanol?
3 answers
1,294 views
It takes the elevator in a skyscraper 4.0 to reach its cruising speed of 10 . A 60 passenger gets aboard on the ground
2 answers
858 views
Hi, i am using netbeans and i'm trying to incorporate a video into my project. I want the program to run a video when a
1 answer
934 views
A 15.0 g of sample of silver is heated to 100.0 0C and then placed in a constant-pressure calorimeter containing 25.0 g of water
2 answers
534 views
For the reaction:
CH4(g) + 2O2(g)-->CO2(g)+2H2O (l) ÄH = -50.38 kJ/mol, How many moles of methane (CH4) must be burned to
3 answers
931 views
A uniform metal rod of mass 100 kg and L (2.5m) is suspended from the side of the building. On the far end of a mass of 100 kg
2 answers
519 views
Please help! I am so stuck on the force diagrams
A uniform metal rod of mass 100 kg and L (2.5m) is suspended from the side of
1 answer
424 views
elimination method 5x + 6y = -75x - 3y = 146
2 answers
395 views
If someone walks at a constant speed, what does that tell us about the forces on the person?
1 answer
328 views
a 5kg suitcase slides 2m down a frictionless ramp incline at 45 degress. How fast is it going at the bottom?
3 answers
459 views
A value of the number m for which there is either no solution or an infinite number of solutions (r ,y ,x) to the system of
1 answer
369 views
Consider water in a well, and a point of measurement at depth below the surface of the water. True or False: if the point of
1 answer
372 views
A baseball team has 15 members, 3 of whom always play and bat at the top of the batting order. For the game Sunday, the starting
1 answer
425 views
For a skewed distribution, what is the approximate percentage of data values that are within 2 standard deviations
4 answers
813 views
If x Ω y is defined as the smallest integer of which both x and y are factors, then 10 Ω 32 is how much greater than 6 Ω 20?
A
4 answers
961 views
What experiment can i use to test the amount of time constants needed to charge or discharge a given capacitor? Please...and is
1 answer
359 views
Omega System Services, a member of the Omega Health Foundation operates a free-standing ambulatory care center that averages $60
3 answers
506 views
Points K,L, and M are on line l in that order. N is a point not on line l. The measure of angle KLN is (3x+3) and the measure of
2 answers
935 views
How many revolutions per minute would a 18 m-diameter Ferris wheel need to make for the passengers to feel "weightless" at the
2 answers
1,278 views
What is the minimum work needed to push a 950 kg car 890 m up along a 8.0 degree incline? Assume the effective coefficient of
4 answers
1,108 views
Suppose that the coefficient of friction between your feet and the floor, while wearing socks, is 0.250. Knowing this, you
1 answer
345 views
Suppose that the coefficient of friction between your feet and the floor, while wearing socks, is 0.250. Knowing this, you
1 answer
372 views
Find f'(x) for f(x)=sec^2x^2
4 answers
281 views
Locate the absolute exterma of the function on the closed interval.
y=3-|t-3| , [-1,5]
3 answers
623 views
3x^2-12x+11=0
Solve for x.
6 answers
709 views
find d^2y/dx^2 (second derivative) for y=cos^2 4x
4 answers
2,186 views
A bridge is designed with cables that connect two towers that rises above a roadway. Each cable is modeled by the function,
1 answer
659 views
Find two positive numbers that satisfy the given requirements.
The product is 147 and the sum of the first number plus 3 times
2 answers
982 views
How do you put a webpage to this website?
3 answers
797 views
A 2.90 kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest. The composite system
1 answer
471 views
How do I find out I would evaporate all solvent ( dichloromethane) from mixture with water? I have less than 1500 ppm of
1 answer
455 views
What is the value of the 5 in each numeral?
3, 458, 201? 152, 670, 400 61, 250
3 answers
276 views
suppose that the charge on the electron and proton did not have the same magnitude but instead differed by one part in 10^10.
3 answers
464 views
A professor drives off with his car (mass 800 kg), but forgot to take his coffee mug (mass 0.35 kg) off the roof. The
2 answers
541 views
g(x) = 10 over x + 7
1 answer
196 views
energy required to raise the temp of H2O from -15C to 125c
1 answer
461 views
A)What is the equation for equivalent resistance for resistors wired in series? What about series wiring makes resistors in
2 answers
481 views
If you assume that there is 5% acetic acid in vinegar, how much vinegar should you weigh out so that the endpoint requires 25.0
4 answers
1,293 views
I need help with doing this problem...
5x-7(2-4x). Any idea how to do it?
3 answers
410 views
For each of the equations, solve for y in terms of x. 2x-3y=12 5x+2y=7 How do I do this?
1 answer
284 views
While following the directions on a treasure map, a pirate walks 36.6 m north, then turns and walks 6.3 m east.
A.) What is the
3 answers
2,157 views
7 grams of chloride was dissolved in water. 20 ml of lead(II)nitrate was used to completely precipitate all chloride (assume
5 answers
477 views
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