Psychology
A psychologist is performing an experiment involving a controlled group and an experimental group. With the experimental group, the psychologist is giving a placebo and labeling it as caffeine pill. The control group receives a caffeine pill, which is noted as such. Which of t...
Math
First period: 85, 83, 74, 70, 88,95,89,72,90,83,77,91,98,89,82,84 Second period: 95,89,82,81,72,69,100,97,75,91,82,79,96,81,80,95,89,97,83,71 Mark is a student in the first period class. His score on the exam was 95%. Zoe is a student in the second period class, she also recei...
Math
Dorian's score of 558 on the writing portion of the 2009 SAT exam placed him in the 72nd percentile. If the mean on this exam was 493, what was the standard deviation?
Accounting
In 20X0, ABC company purchased machine for $300,000 that had a useful life of 5 years, with a salvage value of $50,000 at the end its life. Depreciation was calculated over 2 years on straight-line basis. In 20X2, it determined that the total life should be 10 years with the s...
chemistry... HELPP
What is the cell potential for the reaction Mg(s) + Fe^2+(aq) -----> Mg^2+(aq) + Fe (s) at 63 degrees celsius when [Fe^2+]= 3.30 M and [Mg^2+]= 0.110 M
chemistry
Balance the following equation: K2CrO4+Na2SO3+HCl--->KCl + Na2SO4+CrCl3+H2O Enter the coefficients for each compound, separated by commas, in the order in which they appear in the equation (e.g., 1,2,3,4,5,6,7).
physics ..PLEASE HELP ASSIGN DUE SOON :(
Forces of 11.1N north, 19.9N east, and 14.0N south are simultaneously applied to a 3.62kg mass as it rests on an air table. What is the magnitude of its acceleration? I already did this part and i got 5.56 m/s^2 BUT PLEASE HELP ME WITH part b!! b)What is the direction of the a...
physics ..PLEASE HELP ASSIGN DUE SOON :(
an object on an inclined ramp of mass 1.39kg. The angle of the inclined surface is 29deg with the horizontal. The object on the ramp is connected to a second object of mass 2.17kg on a horizontal surface below an overhang that is formed by the inclined surface. Further, an ext...
Physics HELP!!
A 7.37kg fish is held by a taut string. If the fish is accelerated upward at a rate of 3.62m/s^2, what would be the tension in the string?
Physics HELP!!
two horizontal forces F1 and F2, acting on an object of mass 1.11kg. The magnitude of F1 is 27.56N. The object moves strictly along the horizontal x-axis, which we choose as positive to the right. Find the magnitude of F2 if the object has a horizontal acceleration of 8.4m/s^2...
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