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An asteroid orbits the Sun at a constant distance of 4.350e+11 meters. The Sun's mass is 1.99×1030 kg. What is the orbital speed of the asteroid?
A 1.80 mH inductor is connected in series with a dc battery of negligible internal resistance, a 0.840 k-ohm resistor, and an open switch. How long after the switch is closed will it take for the current in the circuit to reach half of its maximum..
You are designing a banked turn at an automobile racetrack, The coefficient of static friction between the track and the tires is 0.400. What are the radius of curvature R and banking angle
the particles speed is 130 ms the magnitude of the magnetic field is 0.52 t and the radius of the path is 960 m.
You kick a rock off a cliff which is 22.22 m high, with a horizontal velocity of 13.90 m/s, What is the magnitude of the rock's total velocity when it hits the ground below
It requires 78.73 J of work to lift a rock to a height of 4.03 m. What is the mass of the rock
A high-performance sports car can go from 0 to 100 mph in 7.8 s. (Assume the car travels in the positive direction. What is the car's average acceleration
A double convex lens (convex on both sides) is made of glass with an index of refraction of 1.65. What is the magnitude of the larger radius
Three charges sit at the corners of an equilateral triangle with sides of length d = 3cm. Calculate the electric potential at the centre of the triangle
what is the potential difference between the plates.Take the zero of the gravitational potential energy to be at the position of the child as the ropes are horizontal.
An open-tube mercury manometer is used to measure the pressure in an oxygen tank. The atmospheric pressure is 1020mbar .1 bar = 105 N/m2. Determine the absolute pressure (in Pa) in the tank
mass-spring system can oscillate with simple harmonic motion because a compressed or stretched spring has which kind of energy.
A 1.5 kg bicycle wheel with a radius of 0.27 m turns at a constant angular speed of 28 rad/s when a(n) 0.33 kg reflector is at a distance of 0.14 m from the axle. What is the angular speed of the wheel
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