Chapter 1: Problem 44
In Major League baseball, the pitcher delivers his pitches from a distance of 60 feet, 6 inches from home plate. What is the distance in meters?
Chapter 1: Problem 44
In Major League baseball, the pitcher delivers his pitches from a distance of 60 feet, 6 inches from home plate. What is the distance in meters?
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Get started for freeAssuming that 1 mole \(\left(6.02 \cdot 10^{23}\right.\) molecules) of an ideal gas has a volume of \(22.4 \mathrm{~L}\) at standard temperature and pressure (STP) and that nitrogen, which makes up \(80.0 \%\) of the air we breathe, is an ideal gas, how many nitrogen molecules are there in an average \(0.500 \mathrm{~L}\) breath at STP?
Since the British system of units is more familiar to most people in the United States, why is the international (SI) system of units used for scientific work in the United States?
According to one mnemonic rhyme, "A pint's a pound, the world around." Investigate this statement of equivalence by calculating the weight of a pint of water, assuming that the density of water is \(1000 . \mathrm{kg} / \mathrm{m}^{3}\) and that the weight of \(1.00 \mathrm{~kg}\) of a substance is 2.21 pounds. The volume of 1.00 fluid ounce is \(29.6 \mathrm{~mL}\).
Sketch the vectors with the components \(\vec{A}=\left(A_{x}, A_{y}\right)=\) \((-30.0 \mathrm{~m},-50.0 \mathrm{~m})\) and \(\vec{B}=\left(B_{x}, B_{y}\right)=(30.0 \mathrm{~m}, 50.0 \mathrm{~m}),\) and find the magnitudes of these vectors.
The Earth's orbit has a radius of \(1.5 \cdot 10^{11} \mathrm{~m},\) and that of Mercury has a radius of \(4.6 \cdot 10^{10} \mathrm{~m} .\) Consider these orbits to be perfect circles (though in reality they are ellipses with slight eccentricity). Write down the direction and length of a vector from Earth to Mercury (take the direction from Earth to Sun to be \(0^{\circ}\) ) when Mercury is at the maximum angular separation in the sky relative to the Sun.
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