Questions LLC
Login
or
Sign Up
Ask a New Question
Jackie
Questions and answers by visitors named
Jackie
, page 3
Questions (587)
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and
3 answers
1,878 views
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and
1 answer
681 views
which of the following sums is larger and by how much?
1. 7 over Sigma 15/4(pi/10)^n 2. 11 over Sigma 17/4(4/13)^n please help me
1 answer
370 views
October 17, I borrowed $6,000.00 at a rate of 4%. I have to repay the loan in 7 months. What is the simple interest and the
1 answer
483 views
What type of structures of copolymers have a higher probability of crystallization?
1 answer
444 views
Principal is $1,800. Rate is 10%. Simple Interest is $360. What's the time? Please show how you go to this answer.
2 answers
640 views
Rate is 9%. Time is 4 years. Simple interest is $354.60. What's the principal? Please show me how you got to the answer as well.
3 answers
430 views
posted a soap, teacher asked that i change the s & o. this is what i did:
s - patient is here for a non routine checkup, she is 4
4 answers
440 views
help with a question
x+2/x-4 + x^2 + 6 I am not certain how to solve this problem at all
1 answer
362 views
The fundamental frequency of a string fixed at both ends is 388 Hz. How long does it take for a wave to travel the length of
1 answer
447 views
The fundamental frequency of a string fixed at both ends is 388 Hz. How long does it take for a wave to travel the length of
1 answer
428 views
What are the differences between ionic bonds and covalent bonds?
4 answers
839 views
why is hydrogen bonding inly possible with hydrogen?
2 answers
865 views
why is hydrogen bonding only possible with hydrogen?
3 answers
1,003 views
If you invest $9,000 at 6% compounded bi-weekly, after how many years, rounded to .01, will your investment be worth $14,536.63?
1 answer
388 views
1.) Should there be a comma before "is" in the following sentence below?
She gave birth to her first child by her uncle at age 14
6 answers
485 views
Use a calculator to evaluate the expression.
arcsin 0.45 arctan 15 arcsin(-0.125) arccos(-1/3)
2 answers
932 views
Find the exact value of the expression.
sin(arccos sqrt(5)/5)
2 answers
843 views
Could you show me some examples of sentences using pronouns desribing a recent interaction with a friend or family member about
1 answer
423 views
Multiply:
5(cos Pi/3 + i sin Pi/3)times 2 (cos Pi/4 + i sin Pi/4) and leave the answer in trigonometric notation.
1 answer
376 views
What is the trigonometric notation for 3-3(sqrt3i)?
4 answers
356 views
what is the cube root of (-64i)?
1 answer
281 views
a carton of eggs sits on the horizontal seat of a car as the car rounds a 26 meter radius bend at 16.5m/s. what is the minimum
3 answers
1,711 views
a 800 gram ball at the end of a cord is whirled in an almost horizontal circle of radius 1.50 meters. its tangential speed in
2 answers
527 views
N2+O2 <-> 2NO
Equillibrium Concentrations of the gases at 1500K are 1.7x10(-3) mol/L for o2 and 6.4x10(-3) mol/L for N2 and
2 answers
670 views
A reduced fat cookie contains 9g of fat per sereving. In order for food to be termed' reduced fat' it must have at least 25%
4 answers
4,305 views
A rigid container at 300kPa is heated to a new temerature of 30 degrees celcius and a new pressure of 350kPa what is the intial
1 answer
424 views
23.7 grams of glucose(C6H12O6) are added to water to give a 246 ml of solution. what is the Molarity
1 answer
425 views
The enthalpy change in the combustion of the hydrocarbon octane is delta H = -5.48 x 10^3 kJ/mol C8H18(l). How much heat, in
4 answers
1,086 views
In 6.20 h a 100 g sample of ag 112 decays to 25 grams. what is the half life of ag 112.
I think the answer is 3.10 but I'm not
5 answers
4,564 views
How many gallons of 98% H2SO4 is necessary to neutralize 5000 gallons of NaOH?
3 answers
408 views
I didn't ask the proper question the first time. How many gallons of 98% H2SO4 is needed to neutralize 800 lbs. of NaOH crystals
1 answer
446 views
How do I do these problems?
a. (9/16)^ -1 b. (9/16)^ 3/2 c. (8)^ -3 d. (8)^ 1/3
1 answer
227 views
If your body develops a charge of -19 (microcoulombs), how many excess electrons has it acquired? What is their collective mass?
1 answer
910 views
how do you solve limit approaching 0 of (sin^2x) / (x)
3 answers
877 views
Express 10 to the negative 7 meters into nanometers. Answer in nanometers.
1 answer
424 views
The null hypothesis is the hypothesis of no difference, while the hypothesis is what you expect to occur, right? So, what if
2 answers
565 views
Find the volume of 0.110 M hydrochloric acid necessary to react completely with 1.54 Al(OH)3.
Please explain how to do this.
2 answers
506 views
If H is a subgroup of G and K is a normal subgroup of G,prove that HK = KH
3 answers
992 views
I am having some trouble with a sociology assignment concerning research methods. I know this is not a subject covered on this
2 answers
591 views
One endpoint of a line segment is (8,-1). The point (5,-2) is one-third of the way from that endpoint to the other endpoint.
7 answers
1,192 views
Find the point that is one-fourth of the way from (2,4) to (10,8).
4 answers
2,863 views
Show that Sn is non-abelian for n>=3
3 answers
611 views
If H is a subgroup of G, and K is a normal subgroup of G, prove that:
HK = KH
1 answer
308 views
Prove that if "a" is a unit in a ring R with unity, then "a" is not a zero divisor in R.
1 answer
420 views
After fixing a flat tire on a bicycle you give the wheel a spin. Its initial angular speed was 7.35 rad/s and it rotated 15.0
2 answers
1,266 views
A 1.10 sample of dry ice is added to a 745 mL flask containing nitrogen gas at a temperature of 25.0 degrees C and a pressure of
3 answers
2,764 views
Write the slope-intercept equation for the line that passes through (-3,-15)and is perpendicular to -6x+8y=3
2 answers
464 views
I'm having some trouble with a stats portion of an animal behavior lab. We have to do chi-sqaure tests to test 3 hypothesis,
1 answer
838 views
My daughter is working on Fragments and Correcting Run ON Sentences by SCV, SCS, and SS and she did not bring home her book. I
3 answers
889 views
You borrow $90 from Grandma. You pay back $15 a week. Write an equation in standard form that represents the amount owed(y)
3 answers
890 views
A popular carnival ride consists of seats attached to a central disk through cables. The passengers travel in uniform circular
3 answers
647 views
You drive with a constant speed of 15.1 m/s for 23.4 s. You then accelerate for 28.7 s to a speed of 25.8 m/s. You then slow to
4 answers
419 views
If Virgil and Aeschylus had a conversation about women, how would it go based on the stories Aeneid and Agamemnon?
1 answer
464 views
Consider the reaction:
3Ba(s)+N2(g)--->Ba3N2(s) 1)How many moles of barium metal react to produce 0.190 mol of barium nitride?
4 answers
2,828 views
John delivers newspapers he makes $5 the first week and $2 are added to his pay each week he delivers papers. Which expression
2 answers
527 views
I need help creating a program that uses a menu with options to enter student information (name, ID, GPA), print student
1 answer
1,182 views
5x/(x^2 – 25)
1 answer
207 views
Write a brief essay on the topic of volcanic activity and climate change.
Consider such questions as whether there is there a
2 answers
581 views
Given 80g of Calcium reacts with Fluorine at STP, how many atoms of Fluorine are consumed?
Heres the formula: Ca (s) +
4 answers
401 views
What is the volume of 128 g of Oxygen at STP?... here's my work...
O=16 128/16= 8 moles 8(22.4) = 179.2 L Where did i go wrong?
5 answers
866 views
Use the periodic table to identify what type of chemical bond is involved in each of these compounds: NaF,NO2, CBr4, and MgS.
3 answers
1,369 views
Who all is held responsible for the completeness of medical records and what are some reasons that cause them to be incomplete?
1 answer
322 views
Recently Boeing has maintained a cash balance of over $6 billion. At an annual inflation rate of about 2 percent, does cash have
1 answer
381 views
A rectangle has a perimeter of 12m. If each side is a whole number of meters, what are the possible dimensions for the length
2 answers
493 views
The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be $5,500. If an airline charges
3 answers
1,601 views
The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be $5,500. If an airline charges
4 answers
6,753 views
integrate (27x -9x^2)/sqrt(x^3 +9)
1 answer
443 views
If it takes 90N to stretch a spring 1/2 m beyond equilibrium, use an integral to find how much Work it takes to stretch the
1 answer
443 views
A shipping clerk wishes to determine the weights of each of the 4 boxes. Each box weighs a different integer amount less than 70
2 answers
688 views
Can someone please help me solve this:
An 7.74g bullet is fired into a 320g block that is initially at rest at the edge of a
3 answers
744 views
A jet of water squirts out horizontally from a hole near the bottom of the tank,
Assume that y = 1.19 m and x = 0.544 m. What is
2 answers
1,035 views
I am doing a research outline for it and I have all my notes and everything but I do not know where I should put my infor mation
3 answers
543 views
When sampling is done for the proportion of defective items in a large shipment, where the population proportion is 0.18 and the
5 answers
944 views
A mercury barometer reads 744 mm on the roof of a building and 769 mm on the ground. Assuming a constant value of 1.29 kg/m3 for
1 answer
454 views
A jet of water squirts out horizontally from a hole near the bottom of the tank, as seen in the figure below.
Assume that y =
2 answers
1,606 views
A mercury barometer reads 744 mm on the roof of a building and 769 mm on the ground. Assuming a constant value of 1.29 kg/m3 for
1 answer
476 views
Guy wires 80 feet long support a 65 foot tall telephone pole. To the nearest degree, what angle will the wires make with the
4 answers
2,381 views
An A-frame house is 40 feet high and 30 feet wide. Find the angle that the roof makes with the floor. Round the angle nearest
2 answers
581 views
A CD has a mass of 17.0 g and a radius of 5.98 cm. When inserted into a player, the CD starts from rest and accelerates to an
2 answers
589 views
A figure skater is spinning with an initial angular speed of 6.9rad/s. She then pulls her arms in, reducing her moment of
2 answers
1,060 views
A horizontal circular platform (m = 108.1 kg, r = 3.25m) rotates about a frictionless vertical axle. A student (m = 85.3kg)
2 answers
738 views
A wheel has a radius of 4.56 m. How far (path length) does a point on the circumference travel if the wheel is rotated through
1 answer
454 views
How far (path length) does a point on the circumference travel if the wheel is rotated through an angle of 26.2°?
1 answer
432 views
How far does a point on the circumference travel if the wheel is rotated through an angle of 26.2 rev?
1 answer
435 views
How could you use the product of 1/5x 40 to find the product of 4/5 x 40?
4 answers
955 views
Jan, Mya, and Sara ran a total of 64 miles. Jan and Maya ran the same amount and Sara ran 8 less then Maya. How many miles did
1 answer
393 views
Kirk has 25 marbles and 14 seashells. What information is needed to find the number of marbles that are NOT cat's eyes?
1 answer
790 views
an account which pays 14% compounded quarterly, what is the effective rate of yield?
1 answer
390 views
x²+6x-4y+1=0
1 answer
265 views
9x²+4y²-18x+16y-11=0
3 answers
581 views
Along a straight road through town, there are three speed-limit signs. They occur in the following order: 66 , 31 , and 19 mi/h,
3 answers
1,258 views
log² 16 = x
1 answer
430 views
Log² x + log² 3 = 1
2 answers
773 views
log5 (log3³)
3 answers
537 views
Log27+log27(x+8) = 2/3
1 answer
279 views
You have a total of 820 feet of fencing to enclose a large retangular larea and divide it into four smaller pens of the same
3 answers
809 views
a gallon of paint covers 350 square feet, how many do I have to buy to cover 560,444 square feet?
2 answers
566 views
A block of mass 20g sits at rest on a plate that is at the top of the fluid on one side of a u-tube as shown in figure P10.38.
2 answers
528 views
convert english measurements to metrics L 134 in
W 124 in H 92 in I took these three and multiplied them by 2.54cm I got 889cm. I
1 answer
353 views
Pages
1
2
3
4
5
6