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Suppose that two stars in a binary star system are separated by a distance of 80 million kilometers and are located at a distance of 130 light-years from Earth. -What is the angular separation of the two stars? Give your answer in degrees. -What is the angular separation of the two stars? Give your answer in arcseconds
During a 75-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 6.3-mA current in a nearby secondary coil. What is the change in the primary current
Consider a refrigerator that consumes 320 W of electric power when it is running. Find the electricity cost of the refrigerator over a 30 day month
An 8.6-kg box is being lifted by means of a light rope that is threaded through a single, light, frictionless pulley that is attached to the ceiling. what average power is delivered by the person
Three resistors of 40 Ω, 60 Ω, and 120 Ω are connected in parallel, and this parallel group is connected in series with 15 Ω in series with 25 Ω. Compute the potential drop across the parallel group
Saturated water vapor at 500 kPa initially occupies 0.25 m3 within a constant pressure piston-cylinder arrangement. How much work was done on the piston
Velocity of an object is zero at the same instant the acceleration is zero. If an object is not accelerating, there are no forcesacting on it. It is possible for a particle moving at constantspeed to have constant acceleration.
You have been hired to design a spring-launched roller coaster that will carry two passengers per vehicle. Determine the maximum speed of a 360 kilogram vehicle if the spring is compressed the full amount
A runner of mass m runs around the edge of the horizontal turntable mounted on a vertical, frictionless axis through its center. The runner's velocity relative to earth has magnitude v.
A 150 kg rock (density is 2500 kg/m 3 ) is dropped to a lake. Determine how much force the man needs to life the rock from the bottom of the lake
In a circut all six resistors share the same value R. Calculate the equivalent resistance between points A & B
A pendulum is made of a rod of mass 1.7 kilogram and length 3.8 meter whose moment of inertia about its center of mass is (1/12) ML2. Find the moment of intertie of the pendulum about the pivot point
A human-sized version of the popular "hamster wheel" is shaped like a cylindrical shell and has a radius of 2.25 m. A person running on the wheel applies a horizontal force of 148 N to the bottom of the wheel. What torque does he supply
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