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In recent years, a number of nearby stars have been found to possess planets. Suppose, the orbital radius of such a planet is found to be 3.6 1011 m, with a period of 1020 days. Find the mass of the star?
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An electron is accelerated through a potential difference of 100 V, Find the radius of the circular path in which it will travel
A 0.500 kg hammer is moving horizontally at 6.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 82.1 N, Jill pulls with 64.3 N in the northeast direction, What is the direction of the net force
A 45.0 g ball of copper has a net charge of 2.1 µC. What fraction of the copper's electrons have been removed
The ball rebounds straight upward to a height of 0.660 m. illustrate hat are the magnitude and direction of the impulse of the net force applied to the ball during the collision with the floor.
Neglect air resistance, as well as any energy absorbed by the pole, and clarify her altitude as she crosses the bar.
It is found that a uniform amount of electrical flux is going through each region of a Gaussian surface shaped like a cube. What amount of charge is there inside the sphere
A cylindrical container 1.1 tall contains mercury to a certain depth. The rest of the cylinder is filled with water.If the pressure at the bottom of cylinder is two atmospheres, what is the depth.
A gunman standing on a sloping ground fires up the slope. The initial speed of the bullet is v0= 390 m/s. Find the maximum rangeof the bullet along the slope
using a large shiny curved surface (mirror). you notice that an object is upright and exactly 2/3 of the height of the object when it is 150m away from the mirror. what is the image distance
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object, find vthe object's speed at the bottom of the slope
A 0.170-kg piece of aluminum that has a temperature of -155° C is added to 1.5 kg of water that has a temperature of 2.5° C. determine the mass of water that has been frozen into ice
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