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Flight to Mars. To send a satellite from Earth to Mars, a rocket must accelerate the satellite until it is in the correct elliptical orbit around the sun. The satellite does not travel to Mars under rocket power, because that would require more fuel than it could carry. It just moves on a Keplerian orbit under the influence of the sun's gravity. The satellite orbit must have perihelion r = 1 AU, and aphelion r = 1.52 AU.
(A) What is the semimajor axis of the satellite's orbit?
(B) Calculate the time for the satellite's journey. Express the result in days.
A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from the impact: one travels in the air and the other in the concrete, and they are 6.60s apart. How far away did the impact ..
A 48.0 ice skater spins about a vertical axis through her body with her arms horizontally outstretched, making 2.50 turns each second. The distance from one hand to the other is 1.50. Biometric measurements indicate that each hand typically makes ..
A 9.4 cm diameter loop of wire is initially oriented perpendicular to a 2.3 T magnetic field. determine the average induced emf in the loop
On the Moon, the average surface temperature is 127 ?C during the day and -183 ?C during the night. What is the corresponding change on the Fahrenheit scale
A microwave radio transmitter emits electromagnetic waves of a single wavelength. What is the power of the transmitter
Speedboat A negotiates a curve whose radius is 150 m. Speedboat B negotiates a curve whose radius is 190 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
What would be the potential difference VC - VB across the thin resistor if the battery emf is 4.00 volts? Suppose that the electric field in the thick wires is very small (so that the potential differences along the thick wires are negligible)
estimate the average power output on the way up. A speedboat moving at 39 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the boat with a constant acceleration of -3.15m/s2 by reducing the throttle.
A sound wave in air has a frequency of 264Hz and travels with a speed of 347m/s. How far apart are the wave crests
A rotating cylinder about 16- {rm km} long and 6.8 -km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the similar acceleration because of gravity as on Eart..
Compute the magnetic flux
A 2 meter wire carrying 0.9 A of current is at a 90 degree angle to a magnetic field. compute the strength of the field
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