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Joe's boat leaves the harbor and heads straight for Treasure Island, which is 32 degree north of west. Joe travels 19 kilometer to reach the island. Jake leaves a little while later and first heads north to try and get a glimpse of some dolphins (that had earlier been sighted by his friends). Jake travels 14 kilometer due north. At this point he is disappointed at having seen no dolphins and heads straight for Treasure Island. Determine the total distance Jake travels from the harbor to the island?
km
you height of your eyes above the water 1.75 m are standing 2.00 m from the edge of a 2.50 m deep swimming pool. you
what is the resolving power of a microscope (lamda = 550 nm) with a 5-mm-diameter objective which has focal point of= 9mm
Two soccer players start from rest, 33 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
A playground merry-go-round of radius R = 1.20 m has a moment of inertia I = 240 kg · m2, What is the new angular speed of the merry-go-round
a uniform steel bar with weight of 98 N and length of 3.0 m is suspended on each end by a rope. A 50.0 kg mass hangs 50.0 cm from the left end of the bar. How much weight does each rope support
A sealed container of volume 0.10 m3 holds a sample of 3.0 × 1024 atoms of helium gas in equilibrium. Calculate the temperature and pressure of the helium gas
Define a spectrum and discuss how spectra are used in astronomy. Explain how emission and absorption lines are produced and discuss the information they convey. Describe how the spectrum of an object emitting thermal radiation can be used to find the..
A potential barrier has height Vo = 1.0 eV and width 1 A. What is the probability that an electron, with kinetic energy0.25 ev will tunnel during the barrier in one minute? What is the probability for a proton through the same energy?
In the x-y plane, a charge of -4.6uC is on the x-axis at the point (-30cm,0) and a second charge of +7.2uC, Calculate the magnitude and direction of the Electric Force Fe
how much heat in kcal must be added to 0.60 kg of water at room temperature 20degc to raise its temperature to
A circular parallel-plate capacitor with a spacing of 3.2 mm is charged to produce a uniform electric field with strength of 1.50 multiplied by 106 N/C. What plate radius is required if the stored charge is -15.6 µC.
A 66 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 15° above the horizontal. what is the magnitude of the initial acceleration of the crate
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