How much current is in the filament
The filament of a light bulb has a resistance of 570 . A voltage of 120 V is connected across the filament. How much current is in the filament?
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How many motels charged less than $60 per night? If the z-score for a motel is 0.8, what is the price of a single room at the motel (in dollars)?
What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(g) leaves the solution without reacting.]
Find the following probabilities for a standard normal random variable Z. Note: Round your answers to four decimal places.
A golf ball is hit with an initial angle of 38.5° with respect to the horizontal and an initial velocity of 81.5 mph. It lands a distance of 86.8 m away from where it was hit. By how much did the effects of wind resistance, spin, and so forth
A solid consists of a mixture of NaNO3 and Mg(NO3)2. When 6.50 g of the solid is dissolved in 50.0 g of water, the freezing point of the solution is lowered by 5.37 C. What is the composition by mass of the solid?
The best leaper in the animal kingdom is the puma, which can jump to a height of 11.0 ft when leaving the ground at an angle of 50°. With what speed, in SI units, must the animal leave the ground to reach that height?
L is the number of flips of a fair coin up to and including the 33rd occurrence of tails. What is the PMF of L?
A taut rope has a mass of 0.165 kg and a length of 3.55 m. What power must be supplied to the rope so as to generate sinusoidal waves having an amplitude of 0.120 m and a wavelength of 0.495 m and traveling with a speed of 28.0 m/s?
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