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A motor spins a disk (Idisk = 24.8 kg*m2) with a torque of 40 N*m, and a 18 N frictional force acts on the disk at a radius of 1.3 m. Attached to the disk at a radius of 2.4 m is a 5 kg mass. What is the magnitude of the angular acceleration in rad/s2 of the system?
a disk of 1.6 g is made of zinc. the atomic number of zinc is 30 and the atomic mass is 65.39 gmole.a how many protons
A basketball player stands in the corner of the court at the three-point line, 6.33 m from the basket, with the hoop 3.05 m above the floor. what should the launch speed be to make the basket
A wheel 55-cm in diameter accelerates uniformly from 240 rpm to 395 rpm in 5.0 s. How far will a point on the edge of the wheel have travelled in this time.
Illustrate what is the time necessary for crossing if the hunter wishes to move neither upstream nor downstream whilst crossing the river? Draw the vectors to scale on a graph to determine the answer.
a positive point charge q1 2.35 times 10-5 c is fixed at the origin of coordinates and a negative point charge q2
A room has dimensions 2.84 m (height) × 4.91 m × 6.79 m. A fly starting at one corner flies around, ending up at the diagonally opposite corner. What is the magnitude of its displacement
If the uranium nucleus were split into 3 pieces of approximately the same size instead of two, would more energy or less be released?
You're designing a speaker, and you want the tweeter to handle almost everything above 1100 Hz, and woofer to handle almost everything below Hz. Find the capacitance that satisfies the design criteria
an isolated capacitor of unknown capacitance has been charged to a potential difference of 100v. when the charged
A chain consisting of five links, each of mass 0.115 kg, is lifted vertically with a constant acceleration of a = 2.5 m/s2. What is the magnitude of the force F that must be exerted on the top link to achieve this acceleration
Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. what force does the seat belt exert on each driver
calculate the absolute pressure at an ocean depth of 1000m. assume that the density of sea water is 1024 kgm3 and that
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