14. [-/1 Points] DETAILS SERPSE10 33.5.OP.018. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A possible means of space flight is to place a perfectly reflecting aluminized sheet into orbit around the Earth and then use the light from the Sun to push this "solar sail." Suppose a sail of area A = 7.00 x 105 m and mass m = 5,000 kg is placed in orbit facing the Sun. Ignore all gravitational effects and assume a solar intensity of 1,370 W/m. (a) What force (in N) is exerted on the sail? (Enter the magnitude.) N (b) What is the sail's acceleration? (Enter the magnitude in m/s.) um/s (c) Assuming the acceleration calculated in part (b) remains constant, find the time interval (in days) required for the sail to reach the Moon, 3.84 x 108 m away, starting from rest at the Earth. days (d) What If? If the solar sail were initially in Earth orbit at an altitude of 280 km, show that a sail of this mass density could not escape Earth's gravitational pull regardless of size. (Calculate the magnitude of the gravitational field in m/s.) m/s (e) What would the mass density (in kg/m) of the solar sail have to be for the solar sail to attain the same initial acceleration as that in part (b)? kg/m Need Help? Read It Watch It Submit Answer SERPSE10 33.A.OP.026.MI. 17. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A dish antenna having a diameter of 22.0 m receives (at normal incidence) a radio signal from a distant source as shown in the figure below. The radio signal is a continuous sinusoidal wave with amplitude E = 0.800 V/m. Assume the antenna absorbs all the radiation that falls on the dish. max (a) What is the amplitude of the magnetic field in this wave? T (b) What is the intensity of the radiation received by this antenna? W/m (c) What is the power received by the antenna? W (d) What force is exerted by the radio waves on the antenna? N Need Help? Read It Master It Submit Answer