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Funny numbers. Here's a quotation from a book review in a scientific journal:
. . . a set of 20 studies with 57 percent reporting significant results, of which 42 percent agree on one conclusion while the remaining 15 percent favor another conclusion, often the opposite one.
Do the numbers given in this quotation make sense? Can you decide how many of the 20 studies agreed on "one conclusion," how many favored another conclusion, and how many did not report significant results?
For a particular scientific experiment, it is important to be completely isolated from any magnetic field, What is the current in the current loop
A particular organic molecule forms an electric dipole by possessing an effective charge separation of 0.177 nm for a pair of ±1.60 × 10-19-C charges. (a) What is the magnitude of the molecule's electric dipole moment?
A ball is released at the bottom of a container of liquid. The ball rises upward, pops out of the liquid and reaches a height of 20 cm, Calculate the velocity of the ball when it leaves the liquid
What are the practical limits on generated wavelength in a Magnetron? We know that Magnetrons could be utilized efficiently for generating microwaves for water heating, or for radar applications; however what are the achievable wavelength limits?
Two hockey players strike a puck of mass 0.169 kg with their sticks simultaneously, Find the instantaneous acceleration of the puck
A 0.62 kg glider slides frictionlessly on an 3-m air track inclined at an angle of 12 degrees. What will the scale read as the system accelerates
During a physics experiment, helium gas is cooled to a temperature of 19.0K at a pressure of 0.140 atm. What are the average energy per atom
Two loudspeakers in a plane, 5 m apart, are playing the same frequency. If you stand 12 m in front of the plane of the speakers, What is the frequency of the sound
If you want to replace the AC source with a DC power supply and still produce the same rate of heating, what should be the voltage of the DC source?
An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed vfinal of the electron
part 1 rc circuit 5 identical resistors with resistance r are connected in series while 5 identical capacitors with
A 840-kg drag race car acceleratesfrom rest to 105 km/h in 0.80 seconds. What is the change in momentum of the car
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