Thursday
April 24, 2014

Posts by Kam


Total # Posts: 44

physics
Two masses are hung are connected by a light cord and hung from a frictionless pulley of negligible mad are shown. Mass m1=3.00kg and mass m2=2.00kg. When the two masses are released from rest, the resulting acceleration of the two masses?

chemistry
Given the following sets of values for three of the gas variables, calculate the unknown. P = ? mm Hg; V = 26.0 mL; n = 0.007826 mol; T = 15.6°C

chemistry
Given the following sets of values for three of the gas variables, calculate the unknown. P = ? mm Hg; V = 26.0 mL; n = 0.007826 mol; T = 15.6°C

chemistry
If a gaseous mixture is made of 2.37 g of He and 2.73 g of Ne in an evacuated 1.19 L container at 25°C, what will be the partial pressure of each gas and the total pressure in the container?

Math
Find the sum: -4/7 + (-9/14) = and: -4/5 + 11/12 =

Chemistry
Some bacteria get their energy from reduction of CO2 to CH4 by H2. 1. How many electrons are required to reduce CO2 to CH4? 2. Calculate the G for formation of methane based on the two standard reduction potential of -0.171V for reduction of CO2 to CH4 and -0.414V for reductio...

Chemistry
The extracellular concentrations of Na+ and K+ are 135mM and 6mM, respectively. The intracellular concentrations of Na+ and K+ are 10mM and 105mM, respectively. The membrane potential is 75mV. For Na+/K+ ATPase, 3Na+ are exported and 2K+ are imported. Calculate the total free ...

Calculus (math)
Using your knowledge of trigonometric identities, find the exact value of sin(x+y) knowing that x and y are between 0 and π2, that sin(x)=725 and that sec(y)=1312. Your answer must be a rational number, written in the form of an irreducible fraction p/q (such as 2/3...

math
If I have a length of paper 48 cm long and 34 cm wide and I divide into 6 eqaul sections what is the area of each section?

Life science
How long could it take an ecosystem to reach climax community in a primary succession? And a secondary succession?

Music
How is music like electricity? Examples.

music
Can a beat be shown and not heard? I need to be able to demonstrate.

Math
How do you evaluate these expressions? 13 + (-29) or (-32) -44

algebra
How do you write a polynomial for the volume of a box?

physics
-842.72 J

grammar
Thanks for your help, but on question one those are my choices A,B,C,D. I guess the best choice is "B".

grammar
I am confused on question one my choices are: A. when I saw her across the street B. I waved frantically C. to get her attention D. because I wanted to tell her something I think the answre is B. The 2nd question dependent clause: F. although they live far from each other G. S...

grammar
Thank you for your help. I have 2 more questions. Which is an independent clause? when I saw her across the street I waved frantically to get her attention because I wanted to tell her something I think is is I waved frantically. Next is which is a dependent clause? although t...

Grammar
Which best describes this sentence? Since many countries have football teams, there is much competition leading to the World Cup. Compound, complex, simple or comma splice.

Grammar
Is this a complex sentence? In most countries, people call the game of soccer football.

Chemistry
1. What amount of Potassium Chloride forms when 5.25 litres of Chloride gas at 0.95 atm and 293K reacts with 17.0g of Potassium.

Grammar Verbs
Is this the correct present tense verb in this sentence? Then Joe starts the power saw. I think it is starts not started.

Grammer
Present Tense Verb questions, Which is correct in this sentence? Joe chooses a piece of wood. Is it chooses or chose? Also, Joe lies his jacket on the bench. Is it lays or lies?

Grammar
I need the present tense form of the verb choose in this sentence. Fred chooses a piece of wood. Is it chooses or chose? Also in this sentence, Jim lies his jacket on the bench. Is lies or lays correct?

Grammer
Is this a correct sentence using a linking verb? My dog Sam is in the bathtub. Is "is" the linking verb?

Grammer
I do have one more question. I had to write a sentence using a linking verb this is my sentence. My dog Sam is in the bathtub. Is this a correct sentence with a linking verb "is"?

Grammer
I have one more to check: Writing is my favorite subject. Is "is" the linking verb?

Grammer
One more sentence to check. Writing is my favorite subjrect. Is "is" the linking verb?

Grammer
I think are is a linking verb, and grows is the verb.

Grammer
Linking and action verbs. I have 3 sentences not sure what the verb or linking verb is in them. 1. I am happy for my brother. 2. They are quiet in the library. 3. Aris grows flowers in her backyard.

math
The property restoration company puroserv is considering switching to new dehumidifiers. Their market research considering the cost of the new machines and their efficiency tells them thats them switch would give them an 80% chance of making a 20, 000 profit a 15% chance of br...

grammer
How would you write the plural possessive for this sentence: In the rodent room, they saw the (mouse) cages.

math
Thank you Ms. Sue, I was not sure if it was 256 or 512.

math
I am submitting agian, I am not sure the answer someone gave sounds correct. We are learning about exponents. A type of bacteria reproduces by splitting in two every thirty minutes. How many bacteria will there be after 4 hours if there are 2 bacteria to begin with?

math
We are learning about exponents, I don't think this is the correct answer, anybody esle have a thought?

math
A type of bacteria reproduces by splitting in two every thirty minutes. How many bacteria will there be after 4 hours if there are 2 bacteria to begin with?

5th grade
If a phone team asks each person to call two people, how many rounds will it take to call 64 people?

math
Daisies=21, tulips=14, roses=7

5th grade
What Is The Simple Subject Of This Sentence? The Eerie, High Pitched Whistling Got Louder And Louder As We Neared The Empty House.

social studies
Many settlers came here because of the easy access to the ports, cities where built near them and that is where people stayed.

algebra
put into scientific notation (3.7x10^4)(8.1x10^-7

algebra
factor completely: 22xy^3+55x^4y^2

physics
A metal block of mass m is attached to the ceiling by a spring. Connected to the bottom of this block is a string that supports a second block of the same mass m, as shown in the figure . The string connecting the two blocks is now cut.What is the net force acting on the two-b...

physics
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