Elvis
Most popular questions and responses by Elvis
chemistry
Given this data in a study on how the rate of a reaction was affected by the concentration of the reactants Initial Rate, RUN #(A, M) (B, M) (C, M) (mol L1 s1 1 0.200 0.100 0.600 5.00 2 0.200 0.400 0.400 80.0 3 0.600 0.100 0.200 15.0 4 0.200 0.100 0.200
asked on February 18, 2012 
math
the first difference between two consecutive terms of the sequence is 96. calculate the values of these two terms.
asked on March 7, 2019 
chemistry
The halflife of a reaction was found to be inversely dependent on the concentration of the starting material. Thus, we can say that a. the reaction is zero order b. the reaction is first order c. the reaction is second order d. the reaction starts out
asked on February 18, 2012 
Physics
A stone is projected upward at an angle of 30 degree to the horizontal from the top of a tower 100m and it hits the ground at a point q. If the initial veloity of projection is 100ms cal the maximum height of the stone above the groud
asked on January 10, 2016 
chemistry
The units of a rate constant for zero, first and second order reactions are given in the textbook. If the time units are minutes, what would you expect the units to be for a third order reaction? a. 1/min3 b. mol2/L2min c. L/molmin2 d. L2/mol2min e.
asked on February 18, 2012 
chemistry
For the reaction, A = B + C, the rate law is kA]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant? a. 0.00450 s1 b. 0.0290 s 1 c. 0.00530 s1 d. 0.0150 s1 e. 5.40 s1
asked on February 18, 2012 
Science
A coconut of mass 2kg is on a tree of 5m tall; determine the potential energy of this height Take g=10ms^2.
asked on February 28, 2016 
math
A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the frequency of the system is 8/pi cycles per second, determine a trigonometric model that gives the position of the weight at time t seconds.
asked on March 31, 2010 
engineering mathematics
A car of mass 500kg is travelling along a flat road. its engine provides a forward force of 300N. Air resistance is 200N. What will its acceleration be?
asked on February 24, 2017 
physics
A 25mC charge is placed at the end of a meter stick and a 4.omC charge is placed at the 50cm mark.At what position on the line joining the two charges is the electric field zero?
asked on February 3, 2012 
chemistry
The halflife of a reaction was found to be inversely dependent on the concentration of the starting material. Thus, we can say that a. the reaction is zero order b. the reaction is first order c. the reaction is second order d. the reaction starts out
asked on February 18, 2012 
engineering mathematics
A cyclist of mass 60kg rides a bicycle of mass 20kg. When starting off, the cyclist provides a force of 200N. What is his acceleration?
asked on February 24, 2017 
science
Calculate the energy required to vaporize 50g of water initially at 80¡ãC. ( specific heat capacity of water 12jgk, specific heat of vaporization 220jk
asked on July 7, 2015 
Maths
The third and fourth of a geometric progression are 4 and 8 respectively. Find the first and the common
asked on July 24, 2018 
chemistry
The initial concentration of a reactant in a first order reaction is 0.620 molar. What will be its concentration after 3 halflives? a. 0.0388 M b. 0.310 M c. 0.0775 M d. 0.155M e. 4.96 M thinkin c if not need a really good explaination of the real answer
asked on February 17, 2012 
arithmetic
A basket of fruit has 10 oranges,12 apples, and 18 peaches.Express in simplest form the fraction of fruit that are oranges.
asked on December 14, 2009 
math
A Boy Is 6 years Younger Than His Sister.The Product Of Their Ages Is 135.Find The Ages
asked on September 25, 2016 
physic
Two boxes are connected by by a massless string over a massless, frictionless pulley. Box 1 has a mass of m1 = 15.0 kg and is initially at rest at the bottom of a frictionless surface inclined at an angle θ = 30.0◦ above the horizontal. Box 2 has a mass
asked on October 13, 2014 
math
Determine the length of a pendulum that has a period of 4 seconds.
asked on March 31, 2010 
physic
Two boxes are connected by by a massless string over a massless, frictionless pulley. Box 1 has a mass of m1 = 15.0 kg and is initially at rest at the bottom of a frictionless surface inclined at an angle θ = 30.0◦ above the horizontal. Box 2 has a mass
asked on October 14, 2014 
physic
A box with a mass of m = 7.50 kg is set on top of a spring with a spring constant of k = 500 N/m. The box is pushed down 30.0 cm and released. (a) What is the maximum height the box reaches after being launched by the spring? (b) What is the instantaneous
asked on October 14, 2014 
physic
A box with a mass of m = 7.50 kg is set on top of a spring with a spring constant of k = 500 N/m. The box is pushed down 30.0 cm and released. (a) What is the maximum height the box reaches after being launched by the spring? (b) What is the instantaneous
asked on October 13, 2014 
chemistry
A reaction has a rate law, rate = kA]B]^2 What is the overall order of the reaction? a. 2 b. 3 c. 0 d. 1 e. 4 chemistry  DrBob222, Friday, February 17, 2012 at 10:53pm The overall is the sum of the orders of each component. still don't get it but guessing
asked on February 18, 2012 
engineering mathematics
Write down 4 equations of horizontal linear motion and quantify them
asked on February 24, 2017 
science(biology)
state three secondary functions of roots,stems and leaves
asked on August 17, 2014 
chemistry
The reaction A + B + C = products has a rate law rate = kA]C]2. Which of the following will result in an increase in the rate constant for the reaction? #1  increasing the temperature #2  adding a catalyst #3  doubling the concentration of reactant C a.
asked on February 17, 2012 
chemistry
The halflife of a reaction was found to be inversely dependent on the concentration of the starting material. Thus, we can say that a. the reaction is zero order b. the reaction is first order c. the reaction is second order d. the reaction starts out
asked on February 17, 2012 
engineering mathematics
A car is travelling along the road at 8m/s. It accelerates at 1m/s/s for a distance of 18meters. How fast is it then travelling
asked on February 24, 2017 
Busiuness Law II
Using the Internet, identify three firms that are offering to enter into bailment contracts with customers. 2. For each firm, analyze and describe (a) for whose benefit the bailment would be and (b) the duty that the bailor would owe to the bailee. Be sure
asked on August 5, 2010

Physics
Just give me d answer
posted on October 16, 2017 
life Orientation
risk behaviour
posted on August 24, 2017 
chemistry
how carbon dioxide is form is bath bombs
posted on May 18, 2016 
Math  Solving Trig Equations
Is d answer 90degree
posted on January 10, 2016 
Math
the answer 0.5757575757... as a fraction
posted on October 5, 2015 
math
4,1
posted on September 10, 2015 
life orientation
I don't know help me
posted on March 8, 2015 
Chemistry
A sample of gas occupies 29 L under a pressure of 1.3 atm. What ...
posted on December 4, 2014 
ScienceMs.Sue
B is right.
posted on May 12, 2014 
Geometry
87m=SA 45m=V
posted on March 28, 2014 
chemistry
dosent answer the question?
posted on February 18, 2012 
math
When you cross multiply you multiply 8 by x and 1240 by 100. Then you get 124000/8 and you get 15500
posted on January 1, 2012 
college
1. A 2. B 3. B 4. A 5. A 6. B 7. A 8. A 9. B 10. B 11. A 12. A 13. A 14. B 15. A 16. B 17. B 18. A 19. B 20. A 21. A 22. B 23. B 24. A 25. A
posted on February 17, 2010 
6 grade math
u suck
posted on October 19, 2008 
Science
in what 2 waysdo plants contribute to the weathering of rocks
posted on December 4, 2007