Questions Asked on
July 21, 2013

physics
The sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) Calculate the surface temperature(K) of the sun, given it is a sphere with a 7.00 multiplied by 108 m radius that radiates 3.80 multiplied by 1026 W into 3 K space. (b) How much
asked by Alice 
Physics
A raft is 4.2 m wide and 6.5 m long and it floats on water (density of water = 1000 kg/m3). When a horse is loaded onto the raft, it sinks an additional 0.027 m deeper into the water. What is the weight of the horse (in N)?
asked by Joe Shmo 
physics
The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 7.40 g of condensation forms on a glass containing water and 210 g of ice, how many grams will melt as a result? Assume no other heat transfer
asked by Alice 
sci 207
1. A dad holds five coins in his hand. He tells his son that if he can guess the amount of money he is holding within 5% error he can have the money. The son guesses that he is holding 81 cents. The dad opens his hand and displays 90 cents. Did the son
asked by Anonymous 
physics
The "steam" above a freshly made cup of instant coffee is really water vapor droplets condensing after evaporating from the hot coffee. What is the final temperature of 280 g of hot coffee initially at 90.0°C if 2.50 g evaporates from it? The coffee is in
asked by Eric 
physics
(a) How many kilograms of water must evaporate from a 60.0 kg woman to lower her body temperature by 0.750°C?
asked by Alice 
physics
an object has an acceleration of 12.5 m/s2. if the net force experienced by the object is decreased by a factor of 4.5 then what is the new acceleration
asked by jessie 
trig
A barge is pulled by two tugboats. The first tugboat is traveling at a speed of 12 knots with heading 140°, and the second tugboat is traveling at a speed of 17 knots with heading 200°. Find the resulting speed and direction of the barge. (Round your
asked by Priscilla 
ggc
In a random sample of 200 registered voters, 120 indicated they are Democrats. Develop a 95% confidence interval for the proportion of registered voters in the population who are Democrats.
asked by Nicole Jones 
accouting
The ledger of Custer Company has the following work in process account. Work in Process—Painting 5/1 Balance 4,820 5/31 Transferred out ? 5/31 Materials 5,710 5/31 Labor 4,800 5/31 Overhead 2,430 5/31 Balance ? Production records show that there were 410
asked by Patiance 
GEOMETRY
A cylindrical tank if 8 ft. in diameter and 20 ft tall. how many gallons of paint are needed to paint the tank if one gallon covers 200 sq ft ? and a cylindrical hole with diameter 8 inches is cut through a cube 10 in. on a side. find the surface area of
asked by Johaann 
physics
In 1986 a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately a rectangle 160 km long, 45.0 km wide, and 250 m thick. (a) What is the mass of this iceberg, given that the density of ice is 917 kg/m3? (b) How much heat
asked by Eric 
Physics
A 41.0 cm diameter wheel accelerates uniformly from 86.0 rpm to 342.0 rpm in 3.4 s. How far (in meters) will a point on the edge of the wheel have traveled in this time?
asked by Igor 
Math
From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are, 6 degrees and 13 degrees, respectively. The points and the tower are in the same
asked by jasmine 
Math
Jason has to sell a box of candy bars for a fundraiser. Yesterday he sold 1/3 of the total number of candy bars that came in the box, and today he sold 3 candy bars. If his sales for these two days was 11/30 of the total number of candy bars that came in
asked by Anon 
math
a 4 x 7 rectangle can be rotated about the long side to generate a cylinder.it also can be rotated about the short side to generate a cylinder. find the lateral and surface area of the two cylinder.
asked by yha 
socials 11
why did canada's ties with cuba, in particular, represent a move away from adherence to american foreign policy?
asked by alyssa 
Chemistry
The nuclide 38cl decays by beta emission with a half life of 40min. A sample of .40 m of H38cl is placed in a 6.24 liter container. After 80 min the pressure is 1650 mmHg. What is temperature of container? I have tried calculating the decay rate of the
asked by Nancy 
GEOMETRY
A 4x7 rectangle can be rotated about the long side to generate a cylinder. It also can be rotated about the short side to generate a cylinder. Find the lateral area and surface area of the 2 cylinders . PLEASE HOW. TELL ME
asked by Leila 
Physics
A block of mass M=6 kg and initial velocity v=0.8m/s slides on a frictionless horizontal surface and collides with a relaxed spring of unknown spring constant. The other end of the spring is attached to a wall. If the maximum compression of the spring is
asked by Helena Beau 
statistics
1. A simple random sample of 400 students is taken at a large university. The average height of the sampled students is 68 inches and the SD is 2 inches. The distribution of heights in the sample follows the normal curve very closely. An approximate 68%
asked by Anonymous 
Math
Convert 57/9 to a whole or mixed number.
asked by April 
Algebra 2
Explain the difference between log base b (mn) and ( log base b of m)(log base b of n). Are they equivalent? My answer: Let b=2, m=8, n=16 *log base b (mn)=log base b of m + log base b of n log base 2 of 8+ log base 2 of 16=7 * (log base b of m) (log base
asked by Anonymous 
English (Ms.Sue please answer) I did some work own
Ok so Im thinking I will use the theme of heroism (which is the human condition) My arguments would be character, social position and ancestry This is a book and movie comparative essay... I have to do a comparative essay on a book and a film (I chose The
asked by Kristen 
Math
Solve the following problem and reduce to lowest terms (mixed number or improper fraction). 2/3 + 1/6 +11/12
asked by April 
Finance
One way to think about the required rate of return is: as the highest return a riskaverse investor wants from an investment. as the riskfree rate of return plus a risk premium. as the historical rate of return plus a risk premium. as a comparison between
asked by Jasmine 
Computer science
Write an HTML form that prompts the user to enter loan amount, interest rate, and number of years, as shown in Figure 1. Clicking the Compute Payment button invokes a JSP program to compute and display the monthly and total loan payments, as shown in
asked by AN3852 
Math
What would be the amount of compound interest on $8,000 invested for one year at 6%, compounded quarterly?
asked by Mike 
Chem 101
why must we used sulfuric acid H2SO4, in 2KAl(OH)4 + H2SO4>2Al(OH)3(s)+K2SO4 +2H2O and 2Al(OH)(s)+3H2SO4>Al2(SO4)3+6H2O rather than hydrochloric acid,HCl,or nitric acid, HNO3?
asked by Nida McLaurin 
Chemistry
I posted this before a few hours ago without a reply yet but decided I would add more detail: question The nuclide 38cl decays by beta emission with a half life of 40min. A sample of .40 m of H38cl is placed in a 6.24 liter container. After 80 min the
asked by Nancy 
physics
a boy pushes with a force of 15 lbs. on a lawnmower handle which makes an angle 37 degree with the level ground. What is the horinzontal component of this force?
asked by rosilyn 
General Math
I am so confused can anyone help me understand which one is correct and why.... Beta is estimated as the slope of a regression line fit to pairs of periodic returns, (rx, ry), where: rx is the return for a market index such as the S&P 500 Index. rx is the
asked by Alisha 
business
hello: i am considering going back to school to get a degree in business. i have borrowed a book from a friend who is already in the program. meanwhile: i sometimes have trouble working my way through the chapter questions. he said that they were not given
asked by faye 
math
Jo saw a dress regularly priced at 78%. It was on sale at a discount of 30%. Find the amount of discount and the sale price.
asked by vincent 
math
A GARDEN places some lilies in a pond.he does this on the first day of the month of september.the lilies double in volume every day until on the last day of the month,the pool is full.on what day of the month was the pool half full of lilies?
asked by sarah 
math
Shelly delivers the weekly local paper to neighborhoods in her town. House numbers are even on one side of the street and odd on the other. Shelly delivers an equal number of papers to both sides of the street. Although she always aims for the front
asked by zach 
physics
A 3.00 g lead bullet traveling at 640 m/s strikes a target, converting its kinetic energy into thermal energy. It's initial temperature is 40.0°C. Find the available kinetic energy of the bullet. Find the heat required to melt the bullet.
asked by Alice 
Math
Convert 4/5 to higher terms of twentyfifths.
asked by April 
Math
Ryan Miller wanted to make some money at a flea market. He purchased 55 small orchids from a nursery for a total of $233.75, three bags of potting soil for $2.75 each, and 55 ceramic pots at $4.60 each. After planting the orchids in the pots, Ryan sold
asked by April 
Math
In the Capital Asset Pricing Model, the market risk premium is estimated over a long period of time because: more data is always better than less. a longer holding period gives a more reliable estimate because it is, in effect, a larger sample size. almost
asked by Mark 
calculus (hint?)
f(x) is a twice differentiable function such that f(2x)=f(x+5)+(x−5)^2 What is f''(x)?
asked by andy 
College Algebra
Find the equation of the parabola y = ax2 + bx + c that passes through the points. To verify your result, use a graphing utility to plot the points and graph the parabola. (−2, −15), (−1, −4), (1/2,10) y=?
asked by Jack 
Math
Given the points A(0,0), B(4, 3) and C(2,9), what is the measure of angle ABC? Using Law of Cosines.
asked by jasmine 
Physics
how many grams of water at 20 degrees celcius are necessary to change 800.0g of water at 90.0 degrees celsius to 50.0 degrees celcius?
asked by Dale 
statistics
1. A simple random sample of 400 students is taken at a large university. The average height of the sampled students is 68 inches and the SD is 2 inches. The distribution of heights in the sample follows the normal curve very closely. An approximate 68%
asked by MathStastistics 
Math
Ventura Coal mined 6 ⅔ tons on Monday, 7 ¾ tons on Tuesday, and 4 ½ tons on Wednesday. If the goal is to mine 25 tons this week, how many more tons must be mined?
asked by April 
math
when a large cake is cut into pieces that each weigh 3 ounces, it yields 110 pieces. how many pieces would the cake yield if it were cut into 2 ounce piece instead?
asked by anon 
sociolgy
4. Which of the following disciplines are women less likely to study, leading to educationrelated economic inequality? (Points : 1) Sciences Applied sciences Humanities Arts
asked by Anonymous 
algebra
Radical form (5a2b3)1/4
asked by mhark 
math
when tessa and fatima run a 100 metre race,tessa wins by 10m.then they repeat the race,this time with tessa starting 11m behind the starting line.if both girls run at the same speed as efore,what would be the expected result?
asked by sarah 
World Geography
The major cause behind the Israeli invasion of Lebanon was
asked by Anonymous 
English to Writeacher
Yes, I know how to write a thesis statement and how a comparison essay goes.. But I already have my info: This is a comparison essay exploring to what degree an inherent film is discussed and how it relates to an aspect of the HUMAN CONDITION. So my theme
asked by Kristen 
Math
Two WheelerDealer Bike Shop has a 22inch offroad racer on sale this month for $239.95. If the original price of the bike was $315.10, how much would a customer save by purchasing it on sale?
asked by April 
earth
What is an elipse of the sun and what is lunor elipse of the moon
asked by Gopolang 
math find the max/min
f(x) = x2 + 2x  9
asked by Natalie 
math
if c+4=2a+7b, what is the value of c+6 in terms of a and b? 4a+7b 2a+7b2 2a+5b+2 2a+9b 2a+7b+2
asked by anon 
math
a taut wire of length'w'emits a single note when plucked.if it were half as long it would emit the same note but one octave higher.how long should the same wire be to emit the same note but one octave lower?which gives the biggest answer?1)2.3x8 2)3.4x7
asked by sarah 
English
This is a quote. Without the dark we would never see the stars For you is this an encouraging quote?
asked by Anonymous 
math
In which of the following sentences is the underlined word a past participle ? (a) we (helped)Joan to pack her things (b) I was (working)overtime for about six months (c)Jenna has (driven)this route multiple times.(d)She would (like) to join us
asked by keisha 
eth/125
Ethnicity refers to a.racial differnces b.diffrences in physical and mental characteristics c.cultural diffrences d.citizenship
asked by john 
MATH
PLEASE TELL ME THE ANSWER OF HOW TO DIVIDE 602.88 DIVIDED BY 200. WHAT WILL BE THE ANSWER ? DON'T USE CALCULATOR PLEASE.
asked by Johaann 
chemistry
so you have this chemical you tested on mice and rats now you are going to test it on humans to how much degree can you test on humans? what can you measure ex) mass/body weight?
asked by ggggg 
physics
State the conditions for total internal reflection
asked by Anonymous 
Physics
When working with the properties of Saturated Steam. The pressure table supplied states: Pressure kPa = 1100 (P) Temp in Celsius = 184.09 (T) Specific Volume = Sat. Liquid = 1.1330 (Vf) Specific Volume = Sat.Vapor = 177.53 (Vg) Enthalpy = Saturated Liquid
asked by Danny 
Chemistry
How many liters of hydrogen needs to be reacted with chlorine to produce 21g of hydrochloric acid, at STP?
asked by tom 
Chemistry 3A
An aqueous solution contains the ions B, C, and D that are in equilibrium with one another according to the reaction B (aq) + C (aq) >/
asked by Sarah 
Calculus
Find the slope of the functions graph at a given point. Then find an equation for the line tangent to the graph there. f(x)=2*square root of x. (1,2) Could someone please help me figure this one out?
asked by Jess 
socials 11
why did Trudeau lose popularity in the 1970s?
asked by alyssa 
Calculus (Limits)
f(x) is a function differentiable at x=1 and f′(1)=1/13. What is the limit of (x^3  1)/f(x)  f(1) as x approaches 1?
asked by Drake 
Strength of materials
Explain UTM with neat sketch
asked by Hussain 
Math
Is octaland hexadecimal numbering are the number system that is used by computers?
asked by Jnr John 
life orientation
in 1015 lines critically discuss 5 ways in which the human or environment problem impact on de community
asked by grann 
physics
voltage of a solenoid
asked by Anonymous 
math
a total of $24.00 is to be divided among three children in amounts proportional to their ages. if the children's age are 9, 12, and 15 years, how much money will the YOUNGEST receive? 2 3 4 5 6
asked by anon 
math
if x,y, and z are different integers and x+y+z=3, what is the least possible value of z? 3 1 2 3 cannot be determined from information given
asked by anon 
chem 103
Question..where to start..If you had 250.0 g of copper (specific heat = 0.385), what temperature could you raise it to (starting from 20 degrees C) if you heated it with 1685 Joules of energy? If I use the formula q=MxCsX^T, How do I find ^T if I do not
asked by Andrew 
math
32x^3y^2z^4 / 4x^4yz^6 =
asked by vincent 
English to Writeacher
Writeacher, please help me with my thesis!!:'( its due tmw...i don't know wat theme i should do and wat my arguments would be... here is the plot: Gandalf tricks Bilbo into hosting a party for Thorin and his band of dwarves, who sing of reclaiming the
asked by Kristen 
English
Without the dark, we'd never see the stars. What does this mean to you?
asked by Anonymous 
Differentiation
If f(x)=(x+1)^2/(2x+1)^3, then f′(1)= −a/b. What is a and b?
asked by Drake 
socials 11
why did OPEC raise the price of oil in 1972?
asked by alyssa 
eth/125
Which of the following types of people would be unlikey ro do much to change themselves? A. The fair wheather liberal b.the all wheather liberal c.the timid bigot d.all of these
asked by ryan 
Strength of materials
Giveto applications of mechanics depends upon strength
asked by Hussain 
Math<Please Help>
A swimmin bath has verticle sides and the floor slopes uniformly so that, when the bath is full, the water is 1m deep at the shallow end and 4m deep at the other end. If the bath is 25m long and 12m wide, calculate the volume of the water in the bath when
asked by Jnr John 
english
why some sentences begin with ....1. to my surprise 2. to be able to do it ......what grammatical aspect is it
asked by r s telagathoty 
Math
Solve the following problem and convert to lowest terms (mixed number). 6 ⅚ – 17/18 (six and five sixths minus seventeen eighteenths)
asked by April 
Analytical Chemistry
calthe culate mass of 10% stock solution required to prepare 0.8kg of 4%solution
asked by Shewa 
math
in the number 0.123451234512345......(recurring)what is the 1992th digit after the decimal point
asked by sarah 
Quantitative Reasoning for Business
If I made 12.40 and received a 3.5% increase what would my new salary be
asked by ali 
Math
True or False. The value of the square root of 16 is greater than the cube root of 29.
asked by Paula 
American National Government
1During a hearing, executive branch officials are asked to: a) report on what their agency or department has been doing. b) state their intentions for reelection. c) pass new legislation proposed by Congress. d) approve funding for upcoming programs.
asked by John