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A review of the basics of circular motion: The radius of a merry-go-round is 5 meters, and it takes 12 seconds to go around once. We want to calculate the speed of an atom in the outer rim. First, how far does the atom go in 12 s? (This distance is the circumference of the circle.) distance = 31.41592654 (correct answer) Therefore, what is the speed of the atom? speed = ??? What is the direction of the velocity of this atom? towards the center away from the center or tangential.
A certain airplane has a speed of 250.0 km/h and is diving at an angle of 30.0° below the horizontal when the pilot releases a radar decoy. The horizontal distance between the release point and the point where the decoy strikes the ground is 700 m..
A machine part is made from a uniform solid disk of radius R = 0.18m and mass M = 8.3kg. A hole of radius R/2 is drilled into the disk, with center of the hole at the distance R/2 from the center of the disk.
Suzanne observes two light pulses to be emitted from the same location, but separated in time by 2.70 µs. How fast is Mark moving relative to Suzanne
The mass then travels vertically and it takes 1.10 s for the mass to reach the top of its trajectory. Determine the spring constant, in N/m. (Use g=9.81 m/s2). Assume that the time required for the spring to reach its full extension is negligible.
what was the initial speed of the bullet. find the heat that flows in 1.0 s through a lead brick 15 cm long if the temperature difference between the ends of the brick is 8.5 degrees celsius. the cross sectional are of the brick is 12 cm squared.
A slinky with N even loops of area A is L long. You hook it up to a circuit and increase the current at a rate of 2.0 A/s, Now calculate the new induced EMF
Originally, light is unpolarized. It then travels through 3 polarizers: the first with its transmission axis aligned vertical, What is the intensity of light after the third polarizer
A rectangular coil of wire with an area of 0.218 m2 is situated in a constant magnetic field whose magnitude is 0.450 T, What is the flux through the surface
how to Calculate the acceleration of the system. Assume the magnitude of the acceleration is the same during starting and stopping.
A bumper car with mass m1 = 113 kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 94 kg is moving to left with a velocity of v2 = -3.2 m/s.
A neutron star has a mass of 2.20 × 10^30 kg (about the mass of our sun) and a radius of 5.20 × 10^3 m. Assume an object falls from rest near the surface of such a star. How fast would it be moving after it had fallen a distance of 0.0083 m.
A thin, light wire is wrapped around the rim of a wheel, If the suspended object moves downward a distance of 3.40m in 1.86s, what is the mass of the wheel
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