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The stars ? Aurigae A and ? Aurigae B constitute a double-lined spectroscopic binary with an orbital period of 3.96 days. The radial velocity curves of the two stars have amplitudes vAsini=108km/s and vBsini=111km/s. If i=90°, what are the masses of the two stars?
A 2.00 kg frictionless block is attached to an ideal spring with force constant 314 n/m. Initially the block has a velocity of -3.77 m/s, Find the maximum force the spring exerts on the block
What are the x and y components of the shell. What is the acceleration of the two blocks, in meters per second squared.
The temperature inside the refrigerator is 2.0 °C. It stands in a kitchen whose temperature is 22 °C, what is the entropy change of the kitchen
Speakers A and B are vibrating in phase. They are directly facing each other, are 8.0 m apart, and are each playing a 76.0-Hz tone. The speed of sound is 343 m/s. On the line between the speakers there are three points where constructive interfere..
The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet
A warehouse worker pushes a crate along the floor, by a force of 5.0N that points downward at an angle of 45° below the horizontal. find the horizontal component of the push.
Your cup of coffee is too hot to drink when served at 95.What is mass of an ice cube, taken from a -19.0 freezer, that will cool your coffee to a pleasant 62.
Two charged dust particles exert a force of 4.20 x 10^-2 N on each other. What would be the force if they are moved so they are only one-eight as far apart.
A uniform 2.15- kg spinning disk with a radius of 0.233 m is brought to rest by a brake-pad pressed against the side 0.149 m from the rotation axis. What frictional force was applied by the brake pad
A power plant burns coal and generates an average of 600.0 MW of electrical power, Find the total electrical energy generated by the plant in a 30-day period
A 1590 kg car has just passed a diner. The closest the car came to the diner was R = 12.5 m, find the current magnitude of the angular momentum of the car about ther dinner
How many revolutions does the ball make during its fall. Now assume that the ramp is frictionless, so that the ball slides instead of rolling. Through what horizontal distance d does the ball move before landing in this case.
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