Archives
2013
February

Questions Asked on February 20, 2013

Write the ratios for sin A and cos A. The triangle is not drawn to scale.*right triangle. 14 on the side. 50 on the slant. and
1. 11 answers
2. asked by Anonymous
3. 10,467 views
(a) At 800 K the equilibrium constant for I2(g) 2 I(g) is Kc = 3.1 10-5. If an equilibrium mixture in a 10.0-L vessel contains
1. 5 answers
2. asked by Hannah
3. 5,673 views
90% of all students passed in Hindi, 85% in Maths and 150 students passed in both. calculate total number of students in the
1. 5 answers
2. asked by Anonymous
3. 4,548 views
For adults, the RDA of the amino acid lysine is 12 mg per kg of body weight. How many grams per day should a 73.0kg adult
1. 5 answers
2. asked by De'Erica
3. 4,528 views
1) Two 1 kg balls move away from each other, one traveling 5 m/s to the right, the other 5 m/s to the left. What is the
1. 1 answer
2. asked by Isis
3. 4,062 views
Lily estimated a quotient of 120 and found an actual quotion of 83. What should she do next? Explain.
1. 10 answers
2. asked by Chris
3. 3,792 views
Consider the following equilibrium:H2CO3 (aq) ↔ H2O (l) + CO2 (g) Which direction will the equilibrium shift (left or right)
1. 2 answers
2. asked by Anonymous
3. 3,703 views
If the freezing point of the solution had been incorrectly read 0.3degrees C lower than the true freezing point, would the
1. 2 answers
2. asked by mm
3. 3,287 views
Snow was quickly piling up on the ground. Wind howled through the trees. Karen wrapped a blanket around her and sighed as she
1. 8 answers
2. asked by Anonymous
3. 3,043 views
A uniform ladder of length (L) and weight 100 N rests against a smooth vertical wall. The coefficient of static friction between
1. 1 answer
2. asked by Emilea
3. 2,942 views
Can you check my calculations, please? It's for a lab we did in order to find the the enthalpy of formation of NH4Cl(s). My
1. 3 answers
2. asked by a Canadian
3. 2,801 views
Karen is buying wallpaper border for her bedroomWhich is 12ft by 13ft. If the border is sold in rolls of 5yards each how many
1. 1 answer
2. asked by Marco
3. 2,785 views
Betty weighs 427 N and she is sitting ona playground swing seat that hangs 0.22 m above the ground. Tom pulls the swing back and
1. 1 answer
2. asked by brian
3. 2,759 views
A pendulum swings through an angle of 22 degrees each second. If the pendulum is 30 inches long, how far does its tip move each
1. 1 answer
2. asked by Courtney
3. 2,481 views
Who Discovered the First Singind and Dancing Hawk?
1. 3 answers
2. asked by Cameron
3. 2,472 views
During a sale, a music store is selling all drum kits for 20% off. Preferred customers also receive an additional 15% off.1.
1. 1 answer
2. asked by Anonymous
3. 2,272 views
In third grade... Write an equation comparing test scores of 88 and 97. (Use a box for missing number) do you know how to answer
1. 7 answers
2. asked by john
3. 2,153 views
A farmer has 1000 feet of fence a rectangular plot of land. The plot lies along a river so that only has three sides need to be
1. 2 answers
2. asked by Anonymous
3. 2,093 views
Two blocks are connected by a string and are pulled vertically upward by a force of 165 N applied to the upper block.(here is a
1. 1 answer
2. asked by Wes
3. 2,039 views
A water sprinkler sprays in a circular a distance of 10 ft. What is the circumference of the spray?I got 31.4 ft. Is that
1. 3 answers
2. asked by Marco
3. 2,035 views
1) Frank and Oswalt report a molar absorptivity of 4700 L mol^-1 cm^-1 for thiocyanatoiron(lll) ion. What absorbance would you
1. 2 answers
2. asked by Joe
3. 2,021 views
If there are 3 green marbles and 4 blue marbles in a box, what is the probability that a blind-folded person would pick a blue
1. 3 answers
2. asked by Cassie
3. 2,018 views
1. Netta and Jim argued over their views of free trade.2. Netta and Jim had different views on free trade. 3. Netta and Jim were
1. 4 answers
2. asked by Anonymous
3. 1,973 views
a certain binary star system consists of two stars of masses m and 3m respectively separated by a distance of 1.5 x 10^12 m,
1. 1 answer
2. asked by James
3. 1,920 views
Question asking about how enzymes affect the rate of a reaction. Check all that apply1. They shift the reaction equilibrium
1. 7 answers
2. asked by Patrick
3. 1,909 views
An object Is propelled upward at an angle θ, 45° < θ<90°, to the horizontal with an initial velocity of (Vo) feet per second
1. 1 answer
2. asked by Anonymous
3. 1,878 views
Jana hit a golf ball with an initial velocity of 102 feet per second at an angle of 67° with the horizontal.After 2 seconds,
1. 2 answers
2. asked by Becca
3. 1,784 views
A 0.145-kg baseball pitched horizontally at 27 m/s strikes a bat and is popped straight up to a height of 38 m. If the contact
1. 1 answer
2. asked by m
3. 1,733 views
Solid white P melts then vaporizes at high temperatures. Gaseous white P effuses at a rate that is 0.404 times that of neon in
1. 2 answers
2. asked by sally
3. 1,718 views
1.A recent edition of The Wall Street Journal reported interest rates of 10.75 percent, 11.10 percent, 11.48 percent, and 11.75
1. 2 answers
2. asked by Jona
3. 1,693 views
A system at equilibrium contains I2(g) at a pressure of 0.23 atm and I(g) at a pressure of 0.24 atm. The system is then
1. 2 answers
2. asked by ben1987
3. 1,680 views
A bank teller is counting the total amount of money in a cash register at the end of the day. There is a total of $2600 in
1. 2 answers
2. asked by Jona
3. 1,570 views
hemoglobin is the protein that transports O2 through the blood from the lungs to the rest of the body. in doing so, each
1. 1 answer
2. asked by sally
3. 1,546 views
How much is five $100 bills, thirteen $10 bills, and ten $1 bills?? Thank you
1. 3 answers
2. asked by Jbrown
3. 1,527 views
Tricia read 1/4 of her book on Monday. On Tuesday, she read 36% of the book. On Wednesday, she read 0.27 of the book. She
1. 3 answers
2. asked by Betsy
3. 1,516 views
A thundercloud has an electric charge of 43.2 C near the top of the cloud and -38.7 C near the bottom of the cloud. The
1. 1 answer
2. asked by Michelle
3. 1,486 views
In a school of 464 students, 89 students are in the band, 215 students are on sports teams, and 31 students participate in both
1. 3 answers
2. asked by Cassie
3. 1,443 views
A rectangular yard is twice as long as wide the perimeter is 120ft. What are the yards dimensions? W : L :I got. W : 10. And ll:
1. 1 answer
2. asked by Marco
3. 1,399 views
The first social studies test had 16 questions. The second test had 220% as many questions as the first test. Find the number of
1. 2 answers
2. asked by Betsy
3. 1,383 views
How do you write 54% as a fraction in simplest form?
1. 1 answer
2. asked by sarah
3. 1,370 views
A thoroughly dried 1.281g sample of Na2SO4 is exposed to the atmosphere and found to gain 0.383g in mass.What is the percent, by
1. 3 answers
2. asked by Lisa
3. 1,364 views
If a triangular sail has a vertical height of 83 ft. And horizontal length of 40 ft, what is the area of the sail?I got area :
1. 1 answer
2. asked by Marco
3. 1,345 views
A straight path is inclined at an angle of 15 degree to the horizontal. A loaded skip of total mass 1500 kg is at rest on the
1. 4 answers
2. asked by Josep
3. 1,341 views
What is the pressure in millimeters of mercury of 0.0115mol of helium gas with a volume of 211ml at a temperature of 25 degrees
1. 3 answers
2. asked by claire
3. 1,335 views
Dividing Partnership IncomeDesmond Drury and Ty Wilkins have decided to form a partnership. They have agreed that Drury is to
1. 0 answers
2. asked by Jayde M.
3. 1,330 views
In a thundercloud there may be an electriccharge of 54 C near the top of the cloud and −54 C near the bottom of the cloud. If
1. 1 answer
2. asked by hannah
3. 1,303 views
Iodine clock reactionIf the thiosulfate ion solution was omitted what would appear in the solution? I know that once the
1. 1 answer
2. asked by Ahmad M
3. 1,295 views
Two number LCM is 495 & Two number HCF is 5. When we do Plus those number we find 100 number what diffrance bitween those
1. 2 answers
2. asked by Pawan Choumal
3. 1,276 views
How many moles of gas must be forced into a 4.8L tire to give it a gauge pressure of 30.8psi at 30 degrees celsius? The gauge
1. 2 answers
2. asked by Claire
3. 1,258 views
The Lab experiment we did today was to analyze an antacid tablets to determine the actual content of NaHCO3.Suppose I dropped
1. 2 answers
2. asked by John
3. 1,248 views
An elevator with a mass 1000kg accelerates downward at 3m/s^2. What is the maximum tension the cable can support if it's
1. 0 answers
2. asked by Rdron
3. 1,240 views
Is the angle 11pi/12 on the unit circle the same as the angle -pi/12? I'm thinking it would be, but I'm not sure.
1. 2 answers
2. asked by Casey
3. 1,227 views
What is the density of a block of unknown material with a mass of 13.26 g if the dimensions are:length = 2.2 cm height = 1.7 cm
1. 1 answer
2. asked by mariam
3. 1,192 views
select the antecedent of the pronoun in the following sentence:The students will take their final exams before the classrooms
1. 2 answers
2. asked by bianca
3. 1,187 views
1.) A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a
1. 1 answer
2. asked by Isis
3. 1,183 views
The antenna broadcasts radio signals at the resonant frequency of the tank circuit. Suppose that a certain tank circuit in a
1. 1 answer
2. asked by HELP !!!!
3. 1,180 views
1. A triangular prism has vertices at A(2, 0, 0), B(2, 1, 3), C(2, 2, 0), D(0, 0, 0), E(0, 1, 3), and F(0, 2, 0).Which image
1. 3 answers
2. asked by Becca
3. 1,153 views
FIND THE DERIVATIVE OF THE FUNCTIONf (x) = 10e^x
1. 1 answer
2. asked by KELLY
3. 1,147 views
2 planes leave the airport at the same time. Minutes later plane A is 70 miles due north of the airport. Plane B is 168 miles
1. 1 answer
2. asked by Marco
3. 1,138 views
I need help with this problem: The path traveled by a golf ball with a 9-iron can be modeled with the quadratic equation, y=
1. 0 answers
2. asked by Don
3. 1,131 views
Rewrite sentence using commas.As they studied the film they noticed some rules of science at work. I wrote... As they studied
1. 2 answers
2. asked by Cassie
3. 1,126 views
1. A 16-foot ladder on ground level is leaning against a house. If the base of the ladder is placed 5.0 feet from the house,
1. 2 answers
2. asked by jake
3. 1,085 views
In Figure 5-66, a force F of magnitude 13 N is applied to a FedEx box of mass m2 = 1.0 kg. The force is directed up a plane
1. 1 answer
2. asked by Rachel
3. 1,074 views
A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that
1. 1 answer
2. asked by Dawn
3. 1,073 views
how to find slope of a graph without pointsplease make it as simple as possible
1. 1 answer
2. asked by alex
3. 1,020 views
explain jacksons war on the bank
1. 7 answers
2. asked by jj
3. 1,009 views
a child playing jacks bounces a super ball on tha sdewalk. The collision is elastic. Does each object have the same kinetic
1. 0 answers
2. asked by lynn
3. 1,003 views
A fire and rescue squads places a 15 ft ladder against a burning building. If he ladder is 9ft from the building how far up will
1. 1 answer
2. asked by Marco
3. 999 views
Which one of the following statements contains a similie ?A: the maple wears a er scarf B: I think that I shall never see a poem
1. 6 answers
2. asked by Anonymous
3. 998 views
An ethernet cable is 3.95 m long and has a mass of 0.190 kg. A transverse pulse is produced by plucking one end of the taut
1. 0 answers
2. asked by sydney
3. 996 views
While I was researching skateboards I found an interesting old newspaper story.We need to rewrite the sentence placing commas
1. 3 answers
2. asked by Cassie
3. 993 views
Find the derivative of the function....F (x) = 10e^x
1. 0 answers
2. asked by keel
3. 992 views
How many molecules of ethane (C2H6) are present in 0.249 g of C2H6?Enter answer in scientific notation.
1. 1 answer
2. asked by Tessa
3. 991 views
Calculate the magnitude of the drag force on a missile 63 cm in diameter cruising at 220 m/s at low altitude, where the density
1. 0 answers
2. asked by Rachel
3. 980 views
are Chile, Argentina, and Brazil the only countries that share a border with Bolivia and Paraguay?
1. 3 answers
2. asked by Blaze
3. 972 views
Find the density of an object which has a mass of 360 grams and fills a volume of 36 mL.
1. 1 answer
2. asked by heather
3. 958 views
An airplane traveled from Boston to Las Vegas making a stop in St. Louis. The plane traveled 2410 miles altogether, which is
1. 1 answer
2. asked by Betsy
3. 937 views
Phil invested $150 at an annual rate of 4% compounded continuously, what amout to the nearest cent will be in his account after
1. 1 answer
2. asked by phil
3. 933 views
Write the number for 2 hundred plus 5 tens 0 ones
1. 2 answers
2. asked by Jazzy
3. 933 views
Latin America and North America1. The _______ were responsible for the forced migration of more people from Africa than any
1. 13 answers
2. asked by Dale
3. 925 views
How do you figure out what the slope of a graph is in the following question?The slope of the graph of y = x is what? Thanks
1. 1 answer
2. asked by Jonathon
3. 923 views
Which of the following mixtures of KCl in water is a saturated solution and which is an unsaturated solution;1)100g of KCl in
1. 1 answer
2. asked by Lori
3. 918 views
Two positive charges of 6.83 µC each are673 cm apart. Find the electric ﬁeld midway between them. The value of the Coulomb
1. 1 answer
2. asked by Anonymous
3. 911 views
The antenna broadcasts radio signals at the resonant frequency of the tank circuit. Suppose that a certain tank circuit in a
1. 0 answers
2. asked by HELP !!!!
3. 909 views
Below is the last stanza of a poem, "Dover Beach," written in 1876 by Matthew Arnold.Ah, love, let us be true To one another!
1. 2 answers
2. asked by Anonymous
3. 901 views
mean: a double-slit interference experiment is set up in a laboratory using a source of blue monochromatic light of wavelength
1. 1 answer
2. asked by Anonymous
3. 900 views
A 2.75-gram air inflated balloon is given an excess negative charge, q1 = -3.00 × 10-8 C, by rubbing it with a blanket. It is
1. 0 answers
2. asked by Kels
3. 886 views
a survey of 70 customers was taken at a bookstore regarding the type of books purchased. the survey found that 42 customers
1. 1 answer
2. asked by Anonymous
3. 880 views
a boy travels 15 km due north,then goes 9 km due east,then 3km due south.how far is he from his starting pointfind the distance
1. 5 answers
2. asked by cathy
3. 876 views
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center)
1. 0 answers
2. asked by Kels
3. 874 views
Directions: Use a graphing utility to approximate the solutions of the equation in the interval [0,2π) by setting the equation
1. 0 answers
2. asked by AwesomeGuy
3. 870 views
In an atom, an electron that is close to the nucleus is on the highest energy level.A.true B.false I think it is true...?
1. 1 answer
2. asked by Cassie
3. 869 views
calculate the volume of Nitrogen gas to produce 5.6 dm cube of nitric oxide at STP ,N2 + O2 = 2NO
1. 1 answer
2. asked by rupal
3. 849 views
Find the total investment and the interest earned when $2,500 is invested at 5% compounded semiannually for 3 years.
1. 1 answer
2. asked by linda
3. 844 views
There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center)
1. 0 answers
2. asked by Kels
3. 843 views
A 5.0 Ω resistor, a 9.0 Ω resistor, and a 10.0 Ω resistor are connected in parallel across a 24.0 V battery.What is the
1. 1 answer
2. asked by Kai
3. 827 views
a scale model of a car is drawn with a scale of 1:12. if the scale model is 185mm long, how long is the actual car?
1. 2 answers
2. asked by jill
3. 817 views
Betty weighs 427 N and she is sitting ona playground swing seat that hangs 0.22 m above the ground. Tom pulls the swing back and
1. 0 answers
2. asked by josh
3. 814 views
a flowerpot falls from a window ledge far above the street. Some distance down, phil fizyks observes that the pot takes 0.25
1. 2 answers
2. asked by hannah
3. 801 views
Does anyone have answers to exam #013939
1. 2 answers
2. asked by Anonymous
3. 799 views

Back to February 2013

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2025