Static and Kinetic Friction: A 10 kg crate is at rest on a horizontal table (s =0.8, k =0.4). Then various amounts of horizontal pushing force are applied to it. a.) The largest pushing force that can be applied before the crate starts moving is of size: N b.)-d.) If the ...
September 23, 2008
A crate of mass m (=40 kg) is placed at rest on a (frictionless) inclined plane, which has an angle (= 30o) above horizontal. a.) The force of gravity on the crate is: b.) The normal force on the crate is: size: N c.) The net force on the crate is: size: N direction: d.) How ...
September 23, 2008
a graduated cylinder has a mass of 50.35g when empty. If 20mL of mercury with a density of 13.6g/mL is added to the graduated cylinder, what will be the total mass of the cylinder and mercury?
September 16, 2008
I need help with these probability problems. 1). Five chips are selected from a bag without replacement. The bag originally contained 6 yellow chips and 8 red chips. In how many ways can you choose 5 chips from the bag? I did 14 C 5 and got 2002, is that correct. 2). In how ...
May 16, 2008
I need help with this problem: Two planes start from Los Angeles International Airport and fly in opposite directions. The second plane starts ½ hour after the first plane, but its speed is 80 kilometers per hour faster. Find the airspeed of each plane if 2 hours after ...
May 14, 2008
I need help solving this logarithmic equation: ln x + ln (x+3) = 1. I know ln x + ln (x+3)=ln [x(x+3)] and that is ln x^2 + 3x when broken down. Then you have to get rid of ln by taking the natural base e of both sides so in the end you have x^2+3x = e^(1). That's when I ...
May 3, 2008
According to the characters in the book, their lives have been improved. Through genetic engineering everyone is conditioned to love their job, social class, and lifestlye they are "destined" to have. Reading, I think it ways it has improved; however, this presents ...
April 28, 2008
A particle is moving at some constant speed. Use the following information to answer the following questions. s(t)=100/t©÷+12; t¡Ã0; see represents feet and t represents seconds a)Find the velocity and acceleration equations for this particle. b)When ...
March 6, 2008
Does this sound good so far? i need an opinon I researched the genocide in Rwanda for my paper. In Rwanda, there are two major groups: The Hutu and the Tutsi. Even though the Hutu mad up 90% of the population in Rwanda, the Tutsi were basically the aristocrats of the country. ...
October 29, 2007
The question is: The fact that the girls danced in the woods outrages Parris. I have to change "the fact that the girls danced in the woods" to a gerund phrase and I can't think of anything that sounds right. Thank You!
September 21, 2007
The question I need help with says "rewrite the following sentences, correcting errors in sequence of verb tenses" and the problem I have is : "Dr. King discussed the three ways in which people dealt with oppression in the past." I don't see anything ...
September 18, 2007
I have to write two lines of poetry in iambic tetrameter and I am not sure if this is correct or not. Any help would be greatly appreciated! with heavy hearts untwine ourselves yet midnight orbs demand I stay Thank you!
September 5, 2007
I was wondering how do I tell when a word has a silent e in it? Does the word 'welcome' have a silent e in it? Thank you! Yes, the word, welcome, has a silent "e". These three sites will help you with rules for silent "e's". http://www.starfall....
June 2, 2007
The Great Gatsby
i need answers to these ?s below about Great Gatsby.. any of the answers would be nice and ill do anything PLEASE!! Chapters 4-6 ?s In Chapter 5, Gatsby's dream seems to be coming ture. What indications are there, though, that reality cannot satisify his dream? The ...
May 17, 2007
What are alot of items needed in the afterlife??????? i need lots of ideas!!!!!!!!! Items needed in the afterlife???? If something is dead, then depending on how one believes, all will be provided or you won't need anything. I am not sure what your question relates to.
April 9, 2007
an early board game in which players moved their counter around the squares?????? Thank you for using the Jiskha Homework Help Forum. Have you investigated the Egyptian sites Bob Pursley gave you this morning? I listed them for someone else on that site. Now, are you STILL ...
April 9, 2007
What is a mixture of sand, lime, and water that is used as a lubricant to move stones in ancient Egypt???? I dont know that it was. Lime was not available to the Ancient Egyptians, however, gypsum was. They used a mortar of gypsum, sand, and water to cement stones together. ...
April 9, 2007
Sentence Structure : English
Can you please tell me if this is a simple, compound, complex or compound-complex sentence. And can you please tell me why it is the one it is like if it's because there are two dependent clauses or whatever the case may be. The sentence is : Zhang Jie wrote in China after...
April 2, 2007
True or False: Einstein's general theory of relativity explains that light is unaffected by gravity. Fill in the Blank: Newton's law of says that the gravitational force between 2 objects is proportional to the quantity of their masses and inversely proportional to the...
April 1, 2007
I just finished reading "By the Waters of Babylon" by Stephen Vincent Benet and I have no idea what any of it means. I don't understand where the narrator came from (i mean from what country or state), what the metal is that the priests take from the houses of ...
March 21, 2007
Why should the 3 R's be rehabilitated? Thank you for using the Jiskha Homework Help Forum. If, by the 3 R's, you mean "Reading, Riting, Rithmetic" you would be illiterate without them. Aside from their being so much enjoyment in reading, what would happen if ...
February 11, 2007
Name at least three products that are used to manufacture automobiles or trucks? What government imposed barriers stop or hinder the export of automobiles? copper, aluminum, iron, glass, foam, paint, plastic, Export from the US or to the US? Please restate your question! ...
January 29, 2007
articles of confederation
what are the features of the articles of confederation? Here is a site with a copy and an explanation. http://en.wikipedia.org/wiki/Articles_of_Confederation well kelsey...........your a retard ask ur teacher!!!!!!!!!!!!!!1
November 6, 2006
hi, i have a math question that i need help with: when data are non-numerical but can be ordered, such as letter grades, the mean cannot be calculated directly; but both the median and mode can be found. Last year in Ms. Flag's history course, the final grades were 8A'...
August 29, 2006