# Questions Asked onFebruary 15, 2013

1. ## PreCalc

2000(1 – 0.75) = 2000 (.25) = 500 survivors after the dose of antibiotic a is taken Then, 500(1.40)3 = 1374 bacteria after the 3 hours period at the instant before the second dose is taken. a.) For antibiotic A, determine the bacterial population after 6

2. ## physics

A particle is travelling on a straight line with constant acceleration. It covers 6m in the 4th second and 7m in the 5th second. Fine its acceleration and initial speed.

3. ## physics

A particle is travelling on a straight line with constant acceleration. It covers 6m in the 4th second and 7m in the 5th second. Fine its acceleration and initial speed.

4. ## physics

A particle is travelling on a straight line with constant acceleration. It covers 6m in the 4th second and 7m in the 5th second. Fine its acceleration and initial speed.

5. ## chemistry

!. Which of the following structures would you expect to have a net dipole moment? HC(triple bond)CH NH4+ H2C(double bond)O BCl3 2. Rank the sp, sp2, and sp3 orbitals in order of decreasing (highest to lowest) energy. a)sp> sp2>sp3 b)sp3>sp2>sp

6. ## physics

A body moves in a straight line with initial velocity and uniform acceleration. Find how far it travels in 12s, giving that it travels 246m in the first 6seconds and 69m in the last 3seconds. Find also the initial velocity.

7. ## Math

Solve the formula for r: A=P(1+nr)

8. ## physics

Three charges are located on a horizontal axis. 12 µC −0.8 µC 12 µC p 1.69656 m 2.9 m 2.9 m Determine the magnitude of the electric ﬁeld at p, vertically above the charge −0.8 µC as shown in the ﬁgure. Let up be the positive direction. The

9. ## Chemistry

What are the units for rate constant? I know each may have different units for the k value, I just don't know how to get them. How can I tell just by looking at a given rate law?

10. ## Chemistry

A solution contains 314 mg/L of Ca2 . What is the solution in nmol/m3?

11. ## english composition

cousers journal

12. ## PreCalculus

2000(1 – 0.75) = 2000 (.25) = 500 survivors after the dose of prescription a is taken Then, 500(1.40)3 = 1374 bacteria after the 3 hours period at the instant before the second dose is taken. 1.) For antibiotic A, determine the bacterial population after

13. ## Copperbelt international college

A chord PQ of length 5.6cm divides a circle of radius 3.5cm into two segments.calculate the difference in areas between major and minor segment in the circle of chord PQ.

14. ## MATHS GEOMETRY!!! URGENT PLEASE.

A triangle has side lengths 10,17 and 21cm. Find the length of the shortest altitude. And please show working out to help me understand.

15. ## maths

6 people are playing Secret Santa for Christmas. They will each give one gift to someone, and each receive one gift from someone. They are not allowed to give their gift to themselves. How many different ways are there to do so?

16. ## math

___3____ + ___5__ x-4 x-3 -------------------- -4 1 ______ - ______ x-5 x-4 simplify the complex fraction

17. ## physics

A 60W light bulb is connected to a 120V outlet. How long in seconds does it take for 1 billion (109) electrons to pass through the light bulb?

18. ## History

I need help please I am not understanding what my instructor means by "trace the contextof the question across the entire sweep of time, from pre history to c. 1500CE, converting at least 3 separate eras as they are viewed in at least three world culture

19. ## quantum mechanics

Suppose we have a qubit in the state |ψ⟩=12|0⟩+3√2|1⟩. If we measure this qubit in |u⟩=3√2|0⟩+12|1⟩,|u⊥⟩=−12|0⟩+3√2|1⟩ basis, what is the probability that the outcome is u

20. ## quantum mechanics

a) A vertically polarized photon goes through two polarizing filters, the first of which is vertically aligned and the second at 45 degrees. What is the probability that the photon is transmitted through both filters?

21. ## Maths

The ratio John's age to Ryan's age is 3:1 now . 25 years later , the ratio will become 4:3 .How old is John now ?

22. ## Maths

The ratio John's age to Ryan's age is 3:1 now . 25 years later , the ratio will become 4:3 .How old is John now ?

23. ## phycis

a bullet of mass 0.01kg is fired into a sandbag of mass 0.49kg handing from atree.the sandbag with the bullet embedded into it swing away at 10m/s find: a.the momentum after collision b.the momentum before the collision c.the velocity of the bullet

24. ## biology help?

In 1857, Louis Pasteur discovered that yeast is a living organism. The activity of yeast causes fermentation – baker’s yeast, Saccharomyces cerevisiae, has been used for centuries in the production of bread, beer and wine. In the absence of oxygen,

25. ## ENG1511

correct the following sentences for subject-verb agreement,tenses and fragments. 1.My cat is very playful. 2.When he thought he could affrod to pay his own school fees. 3.This children keep making noise. 4.These are great news indeed;I can't believe I made

26. ## Math

What is the minimum value of N that will make this statement true: If we pick any N composite numbers from 1 to 1000, then we can find 2 numbers whose greatest common divisor is not 1.

27. ## physics

An artificial sattelite as a mars of 600 kg and moving towards moon.calculate its kinetic energy and potential energy in mJ relative to the earth when it is 50 km from launching and moving at 2500 km/h take acceleration of earth gravitational field as 790

28. ## maths

a hiker walk due east at 4km per hour and a second hiker starting from the same point walks 55 degree north-east at the rate of 6km per hour. H ow far apart will they be after 2 hours

29. ## maths

In the finals of a rugby tournament, two teams play a best of 5 series. Each team has a probability of 1/2 of winning the first game. For each subsequent game, the team that won the previous game has a 7/10 chance of winning, while the other team has a

30. ## maths

Let be the center of the circle , and be a point outside of circle . is tangential to at , and intersects at . If and , what is the radius of .

31. ## Math

How do you solve g? 4 = (1 + g)^20

32. ## To Anonymous re American History

Your LONG list of questions without any attempts at answers has been removed. Do not posts whole tests here and expect others to do your work for you. If you have actual questions about your assignment, post them, but DO NOT POST the entire assignment.

33. ## english

preview the following titles of novels,which one would you expect to be aboutthe adventures of a sled dog? A.the call of the wild B.sons and lovers C.a passage to india d.the secret agent

34. ## Alagbra 2

what is .5 cubed?

35. ## math

a rectangle is 1/2 red and 1/3 blue. Also it has one green tile and one yellow tile. What would the rectangle look like? What fractional part is green? Yellow?

36. ## Physics

A model rocket launches with an initial velocity of 6 m/s, at an angle of 90 degrees (with respect to the horizon). The rocket's engine provides an acceleration of 2.2 m/s2, acting in the same direction as the initial velocity. After 20 seconds, the rocket

37. ## chem

A student placed 13.5g of glucose (\rm C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. \rm mL mark on the neck of the flask was reached. The flask was then

120. ## math

Jasmine put 10 cups of water in a bucket. If the bucket is half full, what is its capacity? A) 2 cups B) 3 cups C) 4 cups D) 20 cups

121. ## Chem

I need to calcuted the molarity from this 12.5 g of ethylene glycol antifreeze dissolved in o.100kg of water. Density of solution is 1.0 g/mL I know molarity if mole of solute / L of solution. I am confused on how to find the L of solution. Do I add 12.5

122. ## English

1 With his serious face and his dignified way of speaking, he is an excellent (foil momento) for the clownish comedian foil? 2 The war that began with Germany's invasion of Poland in 1939 spread until it had (Pried engulfed) almost the entire world

123. ## algebra

the length of a rectangular photograph is 5in. more than the width. If the area is 50 in^2 what are the dimensions of the photograph? the width is__in. and the length is ____in.

124. ## Calculus

Evaluate the definite integral. dx/(x*sqrt(lnx)) from 1 to e^4 I'm having trouble figuring this out, I might be overthinking it. The way I've approached this is by using u substitution and letting u=lnx. I keep getting the wrong answer though. Help is

125. ## Science

What happens if you shine a pin light into somebody at close distance so that the other eye is not exposed to the light? Pls. any help will do.

126. ## social studies

information on taxation without representation information on british actions led to colonial unity

127. ## Chemistry

How many grams of sulfuric acid is in 25.0 g of 8.00 % H2SO4 solution?

128. ## physics

Romeo takes a uniform 13.7-m ladder and leans it against the smooth (frictionless) wall of the Capulet residence. The ladder's mass is 23.2 kg and the bottom rests on the ground 3.43 m from the wall. When Romeo, whose mass is 70 kg, gets 88.3 percent of

129. ## Chemistry

What is the % mass of 12 M hydrochloric acid. Density of 12 M hydrochloric acid solution is 1.18 g/mL and the density of water is 1.00 g/mL

130. ## Chemistry

Arrange the following aqueous solutions in order of increasing boiling point, explain your answer: 0.120 m glucose (C6H12O6), 0.05 m LiBr, 0.05 m Zn(NO3)2. Using data the boiling point constants given in the test book, calculate the boiling points of each

131. ## algebra

5 radical 5 and 9 radical 5 ____like radicals. a. are b. are not

132. ## social studies

info on first continental congress info on second continental congress

162. ## Math

the length of a rectangular garden exceeds its width by 8 feet. if each side of the garden is increased by 2 feet, the area of the garden will be increased by 60 square feet. find the dimensions of the original garden

163. ## chemistry

A compound with the percent composition shown below has a molar mass of 60.10g/mol. Find its molecular formula: C, 39.97% H, 13.41% N, 46.62%

164. ## maths

alissa is33 years old jacj is three times alyssa's age. How old are Jack and alyssa altogether?

165. ## math

which statement is false? A: 3.648 reapeating=is rational B:-3 2/13=rational

166. ## advance math

how do you prove A-B = B-A

167. ## MATH

Use the figure to answer the following questions. figure for questions 1–3 1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 angle sign3 and angle sign4 angle sign1 and angle sign6 2. If mangle

168. ## math

which statement is false: A: 3.648 reapating 8= is rational B:-3 2/13= is rational C: 3.605551275464...=is irrational D: -3.744= is irrational

169. ## BUSINESS MANAGEMENT

PERSUADE THE GROUP ABOUT THE STRATEGIC IMPORTANCE OF YOUR ROLE IN HUMAN RESOURCES

asked by chelesa hill
170. ## math

A: 3.648 reapating 8= is rational B:-3 2/13= is rational C: 3.605551275464...=is irrational D: -3.744= is irrational

171. ## Math

Use the figure to answer the following questions. figure for questions 1–3 1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 angle sign3 and angle sign4 angle sign1 and angle sign6

172. ## Science

I need to calcuted the molarity from this 12.5 g of ethylene glycol antifreeze dissolved in o.100kg of water. Density of solution is 1.0 g/mL I know molarity if mole of solute / L of solution. I am confused on how to find the L of solution. Do I add 12.5

173. ## math

A: 3.648 reapating 8= is rational B:-3 2/13= is rational C: 3.605551275464...=is irrational D: -3.744= is irrational

174. ## hypothesis

What is the difference between an Type I and a Type II error? Provide an example of both.

175. ## Physics

You testify as an "expert witness" in a case involving an accident in which car A slid into the rear of car B, which was stopped at a red light along a road headed down a hill. You find that the slope of the hill is theta= 12.0°, that the cars were

176. ## Spanish

Complete the paragraph with the appropriate definite articles. Hola chicos, yo soy (1) señora López, (2) nueva (new) profesora y éste (this) es Carlos, (3) conductor. ¿Ustedes son (4) pasajeros? Aquí (Here) tienen (5) documentos y (6) maletas.

177. ## algebra

A rock is thrown upward with a velocity of 15 meters per second from the top of a 26 meter high cliff ad i misses the cliff on the way back down. when will the rock be 5 meters from the water below?

178. ## Health

Which of the following statements is true? Stress management consists of finding balance and developing coping strategies. The goal of stress management is to eliminate all sources of stress. The goal of stress management is to learn to juggle as many

179. ## geometry

If you had a Iscocles triangle bca and the vertex c was 21y+13 and

180. ## physics

The terminal speed of a sky diver is 157 km/h in the spread-eagle position and 330 km/h in the nosedive position. Assuming that the diver's drag coefficient C does not change from one position to the other, find the ratio of the effective cross-sectional

181. ## bussiness writing

Which of the following would be the MOST useful strategy for learning to communicate effectively with international employees working in your overseas divisions? A. Devote time to learning the rules for communicating with people from each of the countries

182. ## Calculus Problem

I need to find the integral of e^(2x)sin(3x) I used integration by parts and I let u=e^2x and dv=sin(3x) My final answer was (-3/8)(e^(2x))(cos(3x)) - (1/8)(e^(2x))(sin(3x)) but it's wrong. Please help!!

183. ## maths

The distance between 2 town x and y, is 50km.alan drive from x to y at an average speed of vkm/ h. Write down an expression,in term of v,for the time in hour, that he took to complete the journey from x to y. Write down an expression in term of v,for the

184. ## Physics

A uniform ladder weighing 197 N is leaning against a wall. The ladder slips when θ = 63.0°. Assuming that the coefficients of static friction at the wall and the ground are the same, obtain a value for µs.

185. ## Science

what is the unit for measuring the speed at which a motor spins?