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NASA sends satellites to Mars by placing the satellite in a Keplerian orbit (around the sun) such that the perihelion is at the radius of the Earth's orbit (1 AU) and the aphelion is at the radius of Mars's orbit (1.52 AU). Most of the trip to Mars is just free fall in the sun's gravitational field. The small gravitational effects of Earth and Mars, which only affect the satellite at the very beginning and end of the trip, may be neglected. Calculate the time it takes the satellite to travel from Earth to Mars. Express the result in days.
two point charges are fixed on the y axis a negative point charge q1 -22 microc at y1 0.21 m and a positive point
A series RLC circuit has a resistance of 24 ? and an impedance of 105 ?. what average power is delivered to the circuit
Flux and nonconducting shells. A charged particle is suspended at the center of two concentric spherical shells that are very thin and made of nonconducting material. Figure (a) shows a cross section. Figure (b) gives the net flux ? through a Gaussia..
A car is traveling at 25 m/s when it runs off the road and hits a utility pole. What is the acceleration of the airbag
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 3.00 m/s, and her takeoff point is 1.80 m above the pool. What is her highest point above the board
A wire loop of radius 0/5 m has a resistance of 2.0 ohms. A uniform magnetic field perpendicular to the plane of the loop increases from 0 to 2.0T in .25 s What is the average current induced in the loop?
The temperature of the surface of a certain star is 7500K. Most hydrogen atoms at the surface of star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could e..
A flat sheet of crystalline quartz has athickness of 3.1 cm. It is on top of aflat sheet of diamond that has a thicknessof 3.0 cm. how far would it have traveled in a vacuum
a wheel of radius r is rolling without slipping. the velocity of the point on the rim that is in contact with the
If an astronomical telescope has the magnification of -32.0 ? and its objective lens has a focal length of 77 cm, what is the focal length of its eyepiece
A ball is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with an initial speed of21.0m/s. Find the horizontal range of the ball
A particular engine has a power output of 4.27 kW and an efficiency of 22.2%. The engine expels 7236 J of energy as heat in each cycle. Find the energy absorbed in each cycle
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