Flashlight shines into the tank from above
A cylindrical tank is 50 ft deep, 39.5 ft in diameter, and filled up to the top with water. A flashlight shines into the tank from above. What minimum angle can its beam make with the water surface if the beam is to illuminate part of the bottom?
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A golf ball rolls off a horizontal cliff with an initial speed of 13.6 m/s. The ball falls a vertical distance of 12.0 m into a lake below. What is the speed v of the ball just before it strikes the water?
A random sample of 64 bearings produced by a machine has a mean diameter of 2.5 inches with a standard deviation of 0.1 inch. Construct a 90% confidence interval for the mean diameter of ball bearings.
Calculate the equilibrium Keq for the tRNA binding to the protein and Calculate the delta G knot for the binding. Remember to use full molar units (not mM) for Keq in this calculation.
Suppose it is known that the time spent by customers in a fast-food restaurant is a normally distributed variable with a mean of 16 minutes and a standard deviation of 4 minutes. What is the probability that a random sample of 25 customers will yi
What is the average force of the kinetic friction acting on the palace? what us tge palace's stopping distance?
A resister is connected to a 4.50 volt battery and the Current flow is 83 mA. (a.) What is the resistance of the resister? (b.) In what direction does the current flow through the resister?
A cylindrical cable with 2.49 x 10-8 m resistivity carries a current of 1500 A. There is a potential difference of 1.8 x 10-3 V between two points on the cable that are 0.33 m apart. What is the radius of the cable?
The edge length of the unit cell of potassium metal, K, is 533 pm; the unit cell is body-centered cubic (one atom at each lattice point). Potassium has a density of 0.856 g/cm3. What is the mass of a potassium atom?
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