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Three Point masses of 3.5Kg each are on a vertical axis. all three rotate at the same time with an angular speed of 60rad/s. Determine (a) the moment of inertia of the system and (b) the rotational kinetic energy of the entire system.
compute the perpendicular components of a 25 n force applied at an angle of 20 degrees counterclockwise with respect to
The velocity of an airplane is 200km/hr due west. What is the velocity of the aircraft relative to the ground
A guitar string by a mass of 12 g is 80 cm long and attached to a guitar at two points separated with 71 cm. What tension should the guitar string have so that its fundamental note is 256 Hz?
A two-stage rocket moves in space at a constant velocity of 5050 m/s. Find the velocity of the 2480 kilogram lower stage after the explosion
A pulley with a radius of 10.0 cm is mounted on an axle that passes through the center of the pulley. calculate the instantaneous angular speed of the pulley
A person stands on a bathroom scale in a motionless elevator. Calculate the magnitude of the acceleration of the elevator
In the experiment of above, a thin plate of glass (n = 1.5) of thickness 0.05 mm is placed over one of the slits. What is the resulting lateral fringe displacement at the screen?
A student in an undergraduate physics lab is studying Archimede\'s principle of bouyancy. The student is given a brass cylinder and using a triple beam balance finds the mass to be 2.72 kg. calculate the volume of the cylinder
The planet Uranus has a radius of 25560km and a surface acceleration due to gravity of 11.1m/s^2 at its poles. Calculate the mass of Uranus from the above data
An object is placed between two plane mirrors arranged at right angles to each other at a distance d1 from the surface of one mirror, how many images are formed
Suppose you hear a clap of 4.63 seconds after seeing the lightning stroke. how far are you from the lightning stroke
The resistivity of gold is 2.44 x 10-8 ohms.m at room temperature. A gold wire that is 0.9 mm in diameter, What is the electric field in the wire
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