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The two stars in a binary star system have masses 2.3x1030kg and 5.5x1030kg. They are separated by 1.5x1012m.
A) What is the system's rotation period, in years?
B) What is the speed of the lightest star?
C) What is the speed of the heaviest star?
At a factory, a noon whistle is sounding with a frequency of 497 Hz. As a car traveling at 84km/h approaches the factory, driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the change i..
this is all the data i hve so Consider the following film speed data: n1 = 8, n2 = 8, s1 = 0.11, s2 = 0.09. Determine the test statistic
A steel rod (? = 7860 kg/m3) has a length of 2.19 m. It is bolted at both ends between immobile supports. Initially there is no tension in the rod, because the rod just fits between the supports. Find the tension that develops when the rod loses 3..
an emersion heater is used to boil water. assuming no heat escapes from the system, how much power must the emersion heater dissipate in order to boil five grams of water into fives grams of steam in ten minutes at standard atmospheric pressure?
An object with a mass of 27.0 g displaces 845.0 ml of water when it is completely immersed. What is the buoyant force on the mass
Billy Dee notes that her favorite record rotates at 34 rev/min. At what speed does the point on the record touching the stylus (needle) move when the stylus (needle) is 5.9 cm from the center?
Megan's mass is 27 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 3.6 m/s at the bottom of the slide. How much work was completed by friction on Megan? Imagine that air resistance is negligible.
How long after the arrow was shot must the apple be dropped, in order for the arrow to pierce the apple as the arrow hits the tree.
Find the force on each side of the loop and the torque acting on loop.
Assume that the partner moves on a circle that has a radius of 6.50 m. At a swinging speed of 4.45 m/s, what force must the man apply to his partner in the straight-down position?
A bumper car with mass m1 = 116 kg is moving to the right with a velocity of v1 = 5 m/s. A second bumper car with mass m2 = 96 kg is moving to the left with a velocity of v2 = -3.8 m/s. The two cars have an elastic collision. Suppose the surface is f..
A heat engine operates between two reservoirs whose temperatures are 139.3°C, What is the maximum efficiency of this engine
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