A baseball with mass 0.14 kilograms and speed 40 m/s is caught. If all of its kinetic energy is converted to internal energy as it is caught, what is its temperature change? (Assume the baseball's specific heat capacity is 1,000 joules per kilogram degree Celsius.)
0.8 °C
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The standard "picture" of the hydrogen atom as a tiny proton with an electron moving in an ellipse around it is extremely oversimplified. The main thing wrong with this picture is
A) the path is actually much more complicated than the elliptical path pictured. B) the electron should be pictured as a spread-out matter field. C) actually there are several electrons going around in the hydrogen atom D) the electron is actually much larger than the proton. E) Actually this picture is not oversimplified.
A hot pizza contains __________
Fill in the blank(s) with correct word
The horizontal acceleration of a projectile
a. is zero b. stays constant c. continuously increases d. continuously decreases e. sometimes decreases and sometimes increases
Molecules of which monomer could, by themselves, form a condensation polymer?
a. HO–CH2–CH2–NH2 b. H2N–CH2–COOH c. HO–CH2–CH2–OH d. HOOC–COOH