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Halley's comment moves in an elliptical orbit around the sun with eccentricity e=0.967. Its distance from the sun at perihelion is rmin=8.9 x 10^7 km.
Find the distance of Halley's comet from the sun at aphelion.
determine the speeds of Halley's comet at aphelion and perihelion.
Calculate the orbital period of Halley's comet.
A 1590 kg car starts from rest on a horizontal road and gains a speed of 61 km/h in 30 s (a) what is its kinetic energy at the end of the 30 s.
A very long, thin straight line of charge has a constant charge density of 20 pC/cm. How far does the electron go before it comes back
Two speakers, one directly behind the other, are each generating a 152-Hz sound wave. What is the least separation distance between the speakers that will produce destructive interference at a listener standing in front of them.
A 1.02 liter flask contains a certain quantity of ideal gas at 315 K. Then an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.60 times its original value. What is a final temperature.
How far apart are they when lighter astronaut has move.
As soon as a traffic light turns green, a car speeds up from rest to 59.0 mi/h with constant acceleration 7.00 mi/h/s. For what time interval is the bicycle ahead of the car
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 4.4 minutes
a girl who weighs 720 N rides on a FErris wheel of radius 7.5 m. when at the top of the wheel her effective weight is 600 N. Find out her speed and the angular speed of the wheel
What is the speed of the wave and draw a snapshot graph of this wave at t = 0 s.
A unit of area, often used in measuring land areas, is the "hectare", defined as 104m2. An open-pit coal mine consumes 66hectares of land, down to a depth of 23m, each year. What volume of earth, in cubic kilometers, is removed in this time.
A container encloses 4.0 mol of an ideal gas that has molar mass M1 and 1.5 mol of a second ideal gas that has molar mass M2 = 3M1
A block of ice with mass 2.00 kg slides0.685m down an inclined plane that slopes downward at an angle of 38.0?, If the block of ice starts from rest, what is its final speed
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