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A certain red giant star has a luminosity of 100,000 times that of the Sun and is located 600 light-years from Earth. If the apparent magnitude of the star is observed to be m=0, calculate the rate of interstellar extinction in the direction of the star.
A - 5.00 nC point charge is on the x axis at x = 1.20 m . A second point charge Q is on the x axis at -0.600m. a) What must be the sign and magnitude of Q for the resultant electric field at the origin to be 45.0N/C in the + x direction?
find the normal force on the car to the highway surface (in N). C) As the car and truck round the curve at 72.9 mi/hr , find the normal force on the truck to the highway surface (in N).
A superhero flies 287 meters from the top of a tall building at an angle of 17 degrees below the horizontal. What is the vertical component of the superhero's displacement? Answer in units of meters. The horizontal is 274.459 meters and the vertical ..
Illustrate what is the magnitude of the apparent weight of a 70 astronaut 3600 from the center of the Earth's Moon in a space vehicle moving at constant velocity?
A soccer ball lying on the ground is kicked with an initial velocity of 10.0 m/s at an angle of 37 degrees above the horizontal. How far over does it land on the ground?
According to the law of universal gravitation, what will happen to Earth if the Sun were somehow replaced by the black hole of same mass.
A 240g ball and a 130g ball are connected by a 32 cm-long massless, rigid rod. The structure rotates about its center of mass at 150rpm.
A home run is hit in such a way that the baseball just clears a wall 10 m high, located 124 m from home plate, Find the time it takes the ball to reach the wall
One wire carries a current of 5.008 A into it. Another wire carries a current of 5 A out of it. Explain how long would it take for the sphere to increase in potential by 4000 volts?
A 54.00 kg pole vaulter running at 10 m/s vaults over the bar. Her speed while she is above the bar is 1.0 m/s. Avoid air resistance, in addition to any energy absorbed by the pole, and determine her altitude as she crosses the bar.
The scale of a spring balance reading from 0 to 235rm {N} has a length of 15 rm{cm}. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.7rm {Hz}. What is the mass of fish? In Kg.
If a force vector has a magnitude of 2.61 newtons and points 64.5 degrees south of east, then what is its x-component?
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