Wooden block of a ballistic pendulum
A 2.50 g bullet, traveling at a speed of 395 m/s, strikes the wooden block of a ballistic pendulum, such as that in the figure below. The block has a mass of 265 g. How high does the combination rise above its initial position?
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The spring constant for the tendon is the same for both groups, 33 N/mm. What is the difference in maximum stored energy between the sprinters and the nonathletes?
An element has two isotopes with masses of 62.9396 u and 64.9278 u,and 30.83% of the atoms are the heavier isotope. Calculate the atomic mass of this element and give its name and symbol.
What is the acceleration of two falling sky divers (mass 113.0 kg including parachute) when the upward force of air resistance is equal to one-fourth of their weight?
Lipitor,a pharmaceutical drug that has been shown to lower "bad"cholesterol levels while raising "good" cholesteral levels inpatients taking the drug, had over $11 billion in sales in 2006.Assuming one 2.5-g pill contains 4.0% of the active ingred
Using Newton's laws, calculate , the magnitude of the normal force that the floor exerts on the chair.
To what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
A loudspeaker of mass 21.0 is suspended a distance of = 2.20 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of = 3.30 .
Discuss in detail Aristotle's understanding of happiness, politics, virtue/excellence, proper upbringing, habit, the mean, weakness of well, and pleasure.
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