jabu phuses a cart that is of mass 5kg with a speed of 1m,s she suddenly increase the force acting on the cart to move 2m,s for a distance of 50m (a)calculate the force causing the cart to speed up
April 15, 2014
1) Which solution will have the lowest OH- A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 2) Which solution will be the strongest base? A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 3) Which aqueous solutions are acidic? A) Na2CO3 and NaHCO3 B) NaCl and NH4Cl C) NaHSO4 and ...
April 5, 2014
A knife thrower throws a knife toward a 300-g target that is sliding in her direction at a speed of 2.30 m/s on a horizontal frictionless surface. She throws a 22.5-g knife at the target with a speed of 39.5 m/s. The target is stopped by the impact and the knife passes through...
March 4, 2014
A dog (canis familiaris) and a coyote (canis latrans) will readiliy mate in captivity and their offspring are healthy and fully fertile. Are we justified in saying they are distinct species? What might this tell us about the history of dogs and coyotes?
January 21, 2014
During a brown-out, the electric power company drops the voltage of the power line and the incandescent light bulbs in your house become dimmer. When this happens, the filaments in the bulbs operate at a lower than normal temperature, so a. their color is somewhat bluer than ...
January 30, 2013
How did Roosevelts response to German aggression toward Britain differ from his response to Japanese aggression toward China? I think it is C or D? A.He condemned the aggression toward China but not toward Britain. B.He condemned the aggression toward Britain but not ...
January 11, 2013
A kicker punts a football from 3 feet above the ground with an initial velocity of 47 feet per second. Write an equation that gives the height (in feet) of the football as a function of the time (in seconds) since it was punted. Find the height (in feet) of the football 2 ...
December 9, 2012
1. Which method would be the simplest way to solve the system? 7x + 5y = 19 7x 2y = 16 A.) graphing B.) substitution C.) elimination D.) distributive I think it is C.
November 27, 2012
A student reacted 5.33 grams of cobalt with oxygen gas and obtained 7.50 grams of cobalt oxide. Determine the empirical formula of this cobalt-oxygen compound based upon this experiment.
September 26, 2012
ive got 2 questions: the star Vega is 25 lightyears away from us. if we sent a radio message to Vega, and another civilization on a planet circling that star answered us, in what year could we expect to hear a reply? why was it necessary to make radio telescopes so much bigger...
June 20, 2012
The probability that a voting-age adult in 2004 voted in the presidential election was 0.57. Five voting-age adults in 2004 were randomly selected. Find the probability that exactly 2 or the 5 adults voted in the presidential election.
May 12, 2012
A bullet hole in the wall at height of 7'6 inches from the floor. Bullet passed thru wall at angle 34 degrees. If they assume that the gun was fired from a height 4' above the floor, how far away from the wall was it when it was fired? (nearest inch)
May 4, 2012
Spanish 8th grade
I have to put these in the past tense-Are they correct? 1. Tú hablas por teléfono. Tú habaste por teléfono. 2. Nosostros bailamos mucho los fines de semana. This would be the same in past tense, I think?? 3. Tú y yo cantamos los domingos. ...
November 16, 2011
A small rock moves in water, and the force exerted on it by the water is given by the equation Fd = kv, where k is a constant. The terminal speed of the rock is measured and found to be 2.0m/s. The rock is projected upward at an initial speed of 6.0m/s. You can ignore the ...
October 19, 2011
11 U chemistry
Predict the products of a reaction between solid beryllium chloride and solid potassium,write the products in a balanced chemical equation also indicate what type of reaction this is.
June 7, 2011
A 75ft diagnol brace on a bridge connects a support of the center of the bridge The horizontal distance that it spans is 15ft longer than the hieght that reaches on the side of the bridge.Find the horizontal and vertical distance spanned by this brace
February 14, 2011
A boy throws a stone vertically up to a man standing at a heigt of 2 m above the boy. Of the stone is thrown up with a velocity of 7.0m s what is the velocity of the stone at the instant when it is caught by the man. A clear explaination is greatly appreciated
February 5, 2011
m=12grams Molar Mass= 180.18 V=.1L n= m/MM= 0.067 moles. Molarity= n/V= .067/.1= .67 M1V1=M2V2 => 0.67(.05)=M2(.5) Solve for M2 and you get .067 M= m/VMM : Molarty= mass/ Volume x Molar Mass so m= MVMM : mass= Molarity x Volume x Molar Mass m= .067(.1)(180.18)= 1.21 Just ...
September 29, 2010
Which of the following statements about boiling points are false: A. the boiling point of 0.1 m KF(aq) is lower than the boiling point of 0.1 m ethanol(aq) B. the boiling point of a 0.5 m aqueous solution of NaOH is the same as the boiling point of a 0.5 m aqueous solution of ...
September 8, 2010
A STUDY OF THE CAUSES OF THE AMERICAN REVOLUTION OF 1776 THE FRENCH REVOLUTION OF 1789 AND THE RUSSIAN REVOLUTION OF 1917 BEST DESCRIBES THE GENERAILIZATION THAT REVOLUTION IS MOST LIKELY TO OCCUR WHEN
July 26, 2010
It is stand accounting procedures, or GAAP, to make an adjusting entry to remove the current years principle from the long-term liabilities. This entry reduces the long-term liabilities and increases the current liabilities. You are the bookkeeper for Bikers ...
January 1, 2010
Mathematics for Liberal Arts
Determine a casino's expected net income from a 24-hour period at a single roulette table if the casino's total overhead for the table is $50 per hour and if customers place a total of $7,000 on single-number bets, $4,000 on two-number bets, $4,000 on four-number bets...
November 20, 2009
The equation to simply put words into numbers would be....."500x + 700x - 700 = 2100"..... Then if you solved for "x", you would get x=7/3. So the plane and jet will meet in 7/3 hours. If yoy add that to 12:00 PM being noon, you would get 2:20, so the plane...
November 16, 2009
hi yea im knew to mall this help stuff so i was wonderin if anyone can help me 4 my class i have to do a ciggarette thing and i need to find out what these ciggarettes were called. the dlues i was given was it was a commercial and a builboard and it is a pic of a man with as ...
May 30, 2009
Hello, everyone: I am working on finding the exact values of angles that are less common and are therefor not found easily on the Unit Circle (at least, they are not labeled). For example, the problem I am asking about is: 10) Find the exact values of the Sine, Cosine and ...
March 17, 2008
Hello all, In our math class, we are practicing the trigonometric identities (i.e., sin^2(x)+cos^2(x)=1 or cot(x)=cos(x)/sin(x). Now, we are working on proofs that two sides of an equation are equal (for example, sin(x)*csc(x)=1; sin(x)csc(x)=sin(x)/sin(x)=1; 1=1). I am not ...
February 25, 2008
Geometry true or false
I just needto check to see if i'm right... It would be false right? Is the statement below true or false? All triangles have three angles, or all squares have nine sides. True False
October 19, 2007
ACTUALLY NOT A STUDENT BUT I HAVE THIS PROJECT WORK. TO RESEARCH ON HOW INTEGERS CAME TO EXISTENCE, BY COURTESY OF WHO THAT ONE IS ABLE TO TELL IF HE COMES ACROSS AN INTEGER. I'LL LIKE TO ALSO GET COMMENTS FROM LEARNED PEOPLE WHO HAD FACTS ABOUT INTEGERS. HOPE TO HEAR FROM...
March 16, 2007