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1) The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The total kinetic energy of the object as it rotates is equal to 1.4 j. If M = 1.3 kg and L = 0.50 m. Neglect the mass of the connecting rods and treat the masses as particles
a) What is the angular velocity of the object?
b) What is the angular momentum of the object?
A vehicle fuel tank is filled to the brim with45 L (12gal) of gasoline at10 °C. Immediately afterward, the vehicle is parked in the sunlight, where the temperature is 35 °C. Calculate how much gasoline overflows from the tank
To light the Olympic flame, an archer shoots and arrow into the air toward the cauldron where the flame is to be ignited. What are the initial magnitude and direction of the velocity
The unstable isotope 234Th decays by beta emission with a half-life of 24.5 days. what is the decay rate after 37 days
An electron is in a vacuum near earth's surface and located at y =0 on a vertical y axis. At what value of y should a second electronbe placed such that its electrostatic force on the first electronbalances the gravitational force on the first electr..
A wheel is spinning at 19 rad/s. Over a period of 50 s it is spinned up to 424 rad/s. Determine its angular acceleration while it was spinning up
In preperation for building a space station, an astronaut removes a self-teliscoping uniform rod form the cargo bay and releases it, What is the angular speed after the catch slips
A fuse in an electric circuit is a wire that is designed to melt,and thereby open the circuit, if the current exceeds apredetermined value. Suppose that the material to be used in a fusemelts when the current density rises to 470 A/cm2.
A star is 4.94 × 1020 m from the Earth. If this star was to burn out today, how many years would it take before we would see it disappear
A brick is released with no initial speed from the roof of a building and strikes the ground in 2.70 {rm s}, encountering no appreciable air drag. How tall is building? How fast is the brick moving just before it reaches the ground.
Unpolarized light with an intensity of 910 W / m2 is incident on a polarizer with an unknown axis. What is the angle between the axes of the polarizers
A ball is kicked with an initial velocity of 16 m/s in the horizontal direction and 14 m/s in the vertical direction. What maximum height is attained by the ball
If 2 hertz waves on a rope travel at 6 meter per second, determine what is their wavelength
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