Consider a 500-kg solar-powered aircraft carrying 28 m2 of solar cells with 15% efficiency. The solar constant (power available from the sun per unit area) is 1.0 kW/ m2. Assume that 30% of engine power is spent on verti- cal climb; the rest goes into horizontal propulsion. De- termine the maximum vertical speed of this aircraft.

The harmonic motion of a particle is given by f(t) = 2 cos(3t) + 3 sin(2t), 0 ? t ? 8. (a) when is the position function decreasing? (round you

Time remainin52: 42the chart shows data for a moving object. which conclusion is best supported by the information inthe chart? time (s)velocity (m/s

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?