Friday
August 1, 2014

Posts by Jordan


Total # Posts: 759

Chemistry
b= 8.8279*10^-20 in joules

Chemistry
It still wrong answer.

Anthropology
The difference between a state and a cheifdom is?

math
you borrow $1200 from a bank that bank charges 9.5% simple annual interest. after 15 months you pay back the loan. how much interest do you pay on the loan? what is the total amount that you pay the bank.

Physics
A boy is standing on a skateboard holding two 5.0 kg bowling balls. Initially they are moving to the left at a speed of 3.0 m/s. At one point the boy throws one ball to the right at 4.0 m/s causing his speed to increase. Before he can slow down, he throws the second ball to th...

physics
A long thin rod is cut into two pieces, one being as long as the other. To the midpoint of piece A, piece B is attached perpendicularly, in order to form the inverted "T" shown in the figure. The application of a net external torque causes this object to rotate about...

math
The LCM of these three numbers is 60. The GCF is 1. If you add the numbers, the sum is 15. Select the three numbers from the following options: 2, 6, 5, 8, 4 Show your work!

Physics
A pendulum 1.70m long is released (from rest) at an angle 30 degrees. 1. Determine the speed(m/s) of the 60.0g bob at Theta = 15. 2. Determine the tension in the cord at the lowest point Theta = 0. 3. Determine the tension in the cord at Theta = 15. A formula would be apprecia...

CHM
Calculate the percent ionization of hydrazoic acid (HN3) in solutions of each of the following concentrations A) 0.377 M B) 0.107 M C) 4.16*10^-2 M Ka= 1.9*10^-5

Calc
Whats the derivative of 2x^2*tan(X)/sec(x) ?

physics
Suppose runner A starts at the 0 degree mark on a circular track (circumference = 400m). And let runner B start at the 180 degree mark. If runner A starts running counter clockwise with acceleration 2m/s^2, and runner B runs clockwise with constant speed of 7 m/s, at what angl...

math
there are 5 people.Each person has 1 hat.How many are in all.4

Algebra 1
xWrite the equation so that y is a function of x. -9x + 3y =18

Math
The formula s = the square root of 18d can be used to fnd the speed s of a car in miles per hour when the car needs d feet to come to a complete stop after slamming on the brakes. If it took a car 12 feet to come to a complete stop after slamming on the brakes, estimate the sp...

CHEM HELP ASAP!
As a solid, Ag adopts a face-centered cubic unit cell. How many unit cells are present per cubic centimeter of Ag?

5th grade math
The moon is about 240.000 miles from Earth. What is this distance written as a whole number multiplied by the power of ten?

5th grade math
What missing number makes the number sentence, 28.02=20+8=?, true?

language
Circle the simple subject and underline the simple predicate. The smell of cooking is delicious to the hungry campers.

CHEM HELP ASAP!!
Two 20.0-g ice cubes at –10.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. heat capacity h2o (S)=37.7 j/mol*k heat capacity h2o (l...

CHEM HELP ASAP!
Calculate the heat energy released when 29.7 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point. Constants for mercury at 1 atm: Heat capacity of Hg (l) 28.0 J/Mol*K, Melting pt 234.32 k, and enthalpy of fusion 2.29 kg/mol

DrBobb222!! Help!!
Please look at my Chemistry problems again, I reposted them with the constants and such. I am still confused!

Chemistry
DrBob222, HELP! Calculate the heat energy released when 29.7 g of liquid mercury at 25.00 °C is converted to solid mercury at its melting point. Constants for mercury at 1 atm: Heat capacity of Hg (l) 28.0 J/Mol*K, Melting pt 234.32 k, and enthalpy of fusion 2.29 kg/mol

Chemistry
DrBob222,HELP! Two 20.0-g ice cubes at –10.0 °C are placed into 275 g of water at 25.0 °C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts. heat capacity h2o (S)=37.7 j/mol*k heat ...

Chemistry
Two - 20.0 g ice cubes @ -20 degrees C are placedinto275 g of water @ 25 degrees C. Assuming no energy is transfered to or from the surroundings caculate the final temperature of the water after the ice melts.

Chemistry
Calculate the heat energy release when 29.7 g of liquid mercury @ 25.00 degrees C is converted to solid merury at its melting point.

Math
Find the unknown digit to make the sentence true 2.48>2.4__ 1>2.463 5.723<5.72__ <5.725 7.64<7.___ 5<7.68

chemistry
What volume of 2.50 x 10-4 M CV+ solution should be diluted to 10.0 mL to prepare a 7.50 x 10-5 M CV+ solution

Science
a .5kg ball is dropped from a 30m high building is on the ground for 2ms then bounces up 20m. What avg force was exerted on the ball?

Physics
A .5kg ball is dropped from a 30m high building is on the ground for 2ms then bounces up 20m. What avg force was exerted on the ball?

7th grade pre algerbra
18 necklaces

MAth!
In the list of five measurements shown below, one is blurred. Supply a fifth value that would make the median 8. 8 5 10 3 #

Math-one more
The average length of time, per week, that students at a certain university spend on homework is normally distributed with a mean of 24.3 hours and a standard deviation of 1.4 hours. Jane tells her parents she spends more time studying than 75% of the students on campus. How m...

Math
In the list of five measurements shown below, one is blurred. What must this value be, if the mean of the five measurements is 7? 8 5 10 3 #

English help
1c 2? 3b 4c 5c 6d 21a 22c 23d 24b 25c

English help
Question 1 Marks: 1 Davey has decided to research the history of fire engines in America. To get started he's written a list of research questions. Which of the following questions is the best research question for him to ask? a. Who holds the patent for the fire engine? b...

English help
1 Which of the following is NOT part of the process of synthesizing? a. finding main ideas b. finding supporting details c. determining a purpose d. comparing and contrasting ideas is it c?

English help
11a 12c 13b 14a c d e 15a c g 16b c d 17d 18c 19e 20c 21d 22a 23b 24a 25b

English help
1a 2d 3a 4c 5d 6a how about now?

English help
Are these right? 1.c 2.b 3.d 4.a 5.c 6.c 7.a 8.b 9.d 10.c 11.a 12.d 13.b 14.d 15.a 16.c 17.b 18.a 19.d 20.a 21.c 22.d 23.a 24.b 25.c

English help
Question 1 Marks: 1 A common theme that runs through all the sections of Song of Myself is Whitman's own — Choose one answer. a. belief in his power as a poet b. love of solitude c. inability to trust people d. failure to change the world Question 2 Marks: 1 Free vers...

elem math core
An unknown number of slips of paper, each with the letter C written on them, are added to the bag. After this, it is known that P(A)=¼ and P(B)= ¹/6. Find P(C).

elem math core
A bag contains one each of red, blue, green, yellow and white marbles. Give the sample space for the following experiments. A) one marble is drawn at random B) one marble is drawn, but not replaced,and then a second marble is drawn.

Statistics and Probability
I had a problem similar to this that we did in my math class. Our teacher said that you take the # of outcomes over the total amount to get the ratio so for the blue beads it would be 6/9 or in other words the ratio would be 6:9. For the gold it would be 3 :9 because there are...

goverment
Choices- -legislative branch -House of Representatives -Supreme Court -executive branch

statistics
Bob scores 610 on his SAT's. If the mean score is 580 and the standard deviation is 115, what percentile is Bob's SAT score?

Chemistry
how many grams of aluminum sulfate are produced if 23.33 g Al reacts with 74.44 G CuSO4

geometry
Two triangles each have adjacent sides of length 120 feet and 180 feet. The first triangle has an angle between the two sides of 40 degrees, while the second triangle has an angle between the two sides of 60 degrees. What is the approximate difference between the areas of the ...

economics
4. Engineers for the Off Road Skateboard Company have determined that a 10% increase in all inputs will cause output to increase by 5%. Assuming that input prices remain constant, you correctly deduce that such a change will cause ________ as output increases. A) total cost to...

Physics
A copper pipe with an outer radius of 0.011 m runs from an outdoor wall faucet into the interior of a house. The temperature of the faucet is 4.4° C and the temperature of the pipe, at 3.1 m from the faucet, is 24° C. In fourteen minutes, the pipe conducts a total of 2...

Math
6 3/5+1 3/5=8 1/5 +

Physical Science
A hockey puck moving at 28 m/s is caught by an 80.00 kg man who was at rest. The man and puck move together after the collision. The puck's mass is 0.16 kg. What is the final velocity?

math
Find the dimensions of a rectangle with perimeter 40 with the largest area. (hint: Find an equation for area and one for perimeter, use both to find perimeter in terms of one variable)

CALCULUS WXMAXIMA !!PLEASE!
thank you so muchh!

CALCULUS WXMAXIMA !!PLEASE!
y=log(100493/40000*x-1) y=atan(100493/40000*x+1) y=exp(-100493/40000*x+1) Note you will need 2 integrals to represent the area. Approximate the area of the region bounded by the given curves. I can do it with two but kinda struggling over here please helppp!

math
Looking at a table of numbers and there is a pattern starting with the number 501, then shaded numbers every 8th number starting with 509. How do I use place value to describe how the numbers change?

7th math
7x(x+4).... (b+11)2b...

7th math
can you help me with this..../ 8(x-5) -3(w+4)

Geometry
if m<afb= 8x-6 and m<bfc = 14x+8, find the value of x so that <afc is a right angle..

Physics
Nevermind! I got it!

Physics
The treasure map in the figure gives the following directions to the buried treasure: "Start at the old oak tree, walk due north for 490 paces, then due east for 120 paces. Dig." But when you arrive, you find an angry dragon just north of the tree. To avoid the drago...

Huck Fin
What is the structure here?

Huck Fin
"Two or three days and nights went by; I reckon I might say they swum by, they slide along so quiet and smooth and lovely. Here is the way we put in the time. It was a monstrous big river down there—sometimes a mile and a half wide; we run nights, and laid up and hid...

math
30 questions are worth 2 and 8 are worth 5

math
518.4 feet long

calc
y = 4x -4 / x^2 vertical asymptotes: ____________________ horizontal asymptotes: ____________________ increasing intervals: ____________________ decreasing intervals: ____________________ relative maxima: ____________________ relative minima: ____________________ concave up in...

math
1. 9y^2 + 24yx + 16x^2

math
13

Calc
analaze the graph of y = 2/ (x^2-9) y-intercepts: ____________________ vertical asymptotes: ____________________ horizontal asymptotes: ____________________ increasing intervals: ____________________ decreasing intervals: ____________________ relative maxima: _________________...

Huck fin
If you have read Huckleberry Finn before, what was your initial reaction to it?

Algebra
3x + 18 + x = 86 4x + 18 = 86 4x = 86 - 18 x = 68/4 x = 17

math
one, two can't be two fives, equal 10

algebra
12n - 30 = 90 12n = 90 + 30 n = 120/12 n = 10

Calculus (Help please)
Find all the critical numbers for the following function. F(x) = (16 - x^2)^(3/5)

Calculus
Find all the relative extrema of f(x) = x = x3 – 3x2 + 4.

Math Q.2
4.166666666667

math
4|2y-3|-1=11

SPANISH
#1 says/ What stores are in malls there are Mexicans in the malls of America? #2 says/ Where are the young Mexicans to buy cheap clothes and fun? Where are you and your friends? Can bargain there?

math
|3t-2|+6=2

math-calculus
|3|-|9|=-5...ANSWER IS |5|

math
COOOOOOL...THX BROSKI

math
-3|2w|=-12

math
kinetic energy is moving energy, or the energy possessed by an object in motion. potential energy is the the energy possessed by an object during rest. Similarity Think of a roller coaster. The chain pulls the rollercoaster full of people up the hill to the top. On the way up ...

geometry
You are given the measures of two angles, beta and gamma. The three angles of a triangle always total up to 180. alpha + beta + gamma = 180 alpha = 180 - beta - gamma so solve for the measure of alpha You know that gamma is 90 degrees, so you have a right triangle. You can use...

math
Mechanical energy is a kind of energy created by the physical movement or rotation, revolution etc of anything.Since most of the movements done and energy created are done by machines, it is named as mechanical energy

Math #Help Meee!!!!!!!!
|n|+3=7

Steve and Reiny
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep WELL I HAVE THIS v=...

Math (Calculus)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

Math (Calculus)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

math
No, you can divide 23 by 4 and get 5.75, but you can't split people into 3/4's

math
So a write a word problem? Esna had bought wanted to buy stickers. Esna sister has 15 stickers and Esna always wants to have 3 times as much as the sister. How many stickers did she buy?

Calculus (Help please)
WELL I HAVE THIS v=1/3pi*r^2h v=1/3pi*r2(4r) v=4/3pi*r^3 dv/dt=4pi*r^2 2=4pi(7/4)^2 2=49pi/4 * dr/dt dr/dt= 8/49pi = 0.052 meters per minute

Calculus (Help please)
is the answer 8/49pi= 0.052 meters per minute

Calculus (Help please)
A tank has the shape of an inverted circular cone with a base radius of 5 meters and a height of 20 meters. If water is being pumped into the tank at 2 cubic meters per minute, find the rate at which the water level is rising when the water is 7 meters deep

Help Math
Thanks Steve

Help Math
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?

5th grade math
8/12 and 9/12

social studies
A limited government is a government that cannot interfere with personal liberties and individual rights much because it is against the law

math (Calculus)
A circular pulley with a radius of 10 cm is turning at 12 revolutions per minute. How fast is a point on the edge of the pulley rising when it is 5 cm higher than the center of the pulley?

help ss !!!!!!!!!!!!!!!
I believe 1 is b and 2 is b as well

6th grade math-ms. sue
The Control is something you kept the same. There is not enough information for me to say what exactly what it is. For example, if you used the same wheel bearings the entire time that would be the control.

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