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A) Use the following data to calculate the speed vp of comet Halley at perihelion. Comet Halley orbits the Sun with a period of 76 years and in 1986 had a distance of closest approach of 8.90×1010 m and an aphelion distance of 5.30×1012 m.
B) Calculate of the speed va of comet Halley at aphelion.
C) Using conservation of angular momentum relative to the Sun, find the ratio of the comet's perihelion distance Rp to its aphelion distance Ra from the values of vp and va.
With what minimum speed should you toss a 140g ball straight up to hit the 11.0m-high roof of the gymnasium if you release the ball 1.30m above the ground? Resolve this problem using energy.
Two parallel conducting plates with the small gap of 1.0 cm are charged oppositely each other. What is the acceleration of the electron
A juggler throws a ball straight up with some initial velocity. Half a second later, the juggler throws another ball straight up from the same height, then what is the initial velocity of each ball
The three displacement vectors in the drawing have magnitudes of A = 5.47 m, B = 5.43 m, and C = 3.91 m. Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional an..
A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity of +16.6 m/s in a time of 34.3 s, What is the tension in the hitch that connects the trailer to the car
An 84.4-mH inductor and a 6.27-µF capacitor are connected in series with a generator whose frequency is 361 Hz. Determine the rms voltage across the inductor
You are now studying a length of wire that has been coiled up to create a circular coil of 4 turns all arranged compactly, The loop has radius of 0.0240 m and a current of 49.5 A, What is the strength of the magnetic field at the center of the loop
a uniform thin rod of length 0.50 m and mass 4.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the magnitude of the bullet's velocity just before the impact
A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N. What is the highest speed the rock can reach before the string breaks? (Neglect gravity.)
A place kicker should kick a football from a point 35m (about 38.0 yd) from the goal, and the ball should clear the crossbar, which is 3.05 m high. When kicked, ball leaves the ground with a speed of 21.0 m/s at an angle of 55° to the horizontal.
A father (m = 90 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast is the father moving.
A diver is practicing for a coming game. The height of the diving tower is 10 m (from the top of board down to water surface), What is the angle at which the diver enters the water
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