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Find an experiment. You can find the latest medical research in the Journal of the American Medical Association at www.jama.ama-assn.org and the New England Journal of Medicine at www.nejm.org. Many of the articles describe randomized comparative experiments and use the language of statistical significance when giving conclusions. Look through the abstracts and find an experiment of interest to you. If your institution has a subscription to these journals, you should be able to view the entire article. Otherwise, use the information in the abstract to answer as many of these questions as you can. What was the purpose of the experiment? How many factors were in the experiment, and what were the levels of the factors? What response(s) were measured? How many subjects were assigned to each of the treatments, and was randomization used? Was it a double-blind experiment? What were the conclusions, and were the results statistically significant?
If I have a box with a movable divided and ideal gas inside, and I have Pleft greater than Pright, therefore the movable divided moves to change the volume so that pressure is in equilibrium, then how much is the change of entropy?
current in a circuit falls from 5.0 a to 0.0 a in 0.1 s. if an average emf of 200 v induced give an estimate of the
An outfielder throws a 0.150 kg baseball at a speed of 54.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion
Assume another solar system with a star of the same mass as the sun. Evaluate what the orbital period of this planet
A 6.00 g bullet is fired horizontally at two blocks resting on a smooth tabletop, as shown in the top figure, find the speed of the bullet immediately after it emerges from the first block, find the bullet's original speed
Suppose that the magnetic field has a magnitude of 0.130 T, the particle's speed is 6.0 multiplied by 106 m/s, and the radius of its path is 144.5 cm. Find the mass of the particle, given that its charge has a magnitude of 1.60 multiplied by 10?19 C...
7.0 kg object undergoes an acceleration of 2.5 m/s2. What is the magnitude of the resultant force acting on it? If this same force is applied to a 14.0 kg object, what acceleration is produced?
Knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities vA, vB, andvC.
A spring with spring constant 14 hangs from the ceiling. A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 and released. The ball makes 17 oscillations in 16 seconds. What is it the mass of ball.
question 1. what are the respective potential energies of 2.1 kg objects in the basement and attic relative to ground
A simple pendulum has a mass of 0.150 kg and a length of 1.00 m. It is displaced through an angle of 10.0° and then released. What is the maximum restoring force
Assume the density ρ of the raindrop is a constant. Ignoring the resistance due to the fog and the air, calculate the instantaneous acceleration of the raindrop as a function of v, r, ρ , g, and k.
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