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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.
Two point charges are separated by 6 cm. THe attractive force between them is 20N. What is force between them when they are separated by 9 cm? What is the equation used to arrive at this reply?
To get an idea of how empty deep space is on the average, perform the following calculations. Find the radius of a sphere of this volume in light years
First-order Bragg diffraction is observed at 23.0 degrees relative to the crystal surface, with spacing between atoms of 0.26nm, At what angle will second order be observed
A 72-kg base runner begins his slide into second base when he is moving at a speed of 3.9 m/s. How far does he slide
A solid sphere of mass 4.4 kg and radius 0.12 m is at rest at the top of a ramp inclined 15°. Find the sphere's total kinetic energy when it reaches the bottom
while the other terminal of the ammeter is connected to the other wire, ammeter shows that the current through the wire is 1 A. You then disconnect everything and travel to the other end of the telephone line, where you repeat the process and find ..
The men's world record for the shot put, 23.12 m, was set by Randy Barnes of the United States on May 20; 1990.If the shot was launched from 6 ft above the ground at an initial angle of 42degrees, what was its initial speed.
A ceiling fan with 80-diameter blades is turning at 68. Suppose the fan coasts to a stop 27 after being turned off. What is the speed of the tip of the blade 10 after the fan is turned off.
When she reaches the bus, explain how fast is the bus traveling? If the student's top speed is 2.20m/s^2 , will she catch the bus? What is the minimum speed the student must have to just catch up with the bus?
A 12 kg object oscillates at the end of a vertical spring that has a spring constant of 1.70 x10^4 N/m. The effect of air resistance is represented by the damping coefficient b = 3N•s/m. Find the time interval that elapses while the energy of the ..
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is = 2.6 x 10-7 C/m2, the plates are separated by a distance of 1.4 x 10-2 m. How fast is the electron moving just before..
A bat is pursuing an insect and using echolocation of 60-kHz sound waves to track the insect. find the difference in the two echo times the bat measures
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