Asmall airplane of a wingspan of 14.0 m is flying due north at a speed of 70.0 m/s over a region where the vertical component of the earth's magnetic field is 1.2 μt downward. (a) what potential difference is developed between the airplane's wingtips? (b) which wingtip is at higher potential? (c) what if? how would the answers to parts (a) and (b) change if the plane turned to fly due east? (d) can this emf be used to power a lightbulb in the passenger compartment? explain your answer

Which statement best describes how private industry decides where to spend the money on research and development

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes.t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.