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At a distance of 4.50 m from a siren, the sound intensity is 5.13 × 10-2 W/m2. Assuming that the siren radiates sound uniformly in all directions, discover the total power radiated.
a solid sphere is released from rest on an incline. when it reaches the bottom what fraction of its total kinetic
With the engines off, a spaceship is coasting at a velocity of+220 m/s through outer space. The ship carries rockets thatare mounted in friing tubes, What is the velocity of the rocket
how long does it take the sun to melt a block of ice at 0c with a flat horizontal area 1.0m2 and thickness 2.0cm ?
The front 1.20 m of a 1600 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision.
A 120g ball moving at 0.50 m/s in the + x direction is subject to a 0.25 N force in the - y direction for 2.5 s, Find the balls final speed
A 60 kg trunk is pushed 5.8 m at constant speedup a 30° incline by a constant horizontal force. The coefficient of kinetic friction among the trunk and the incline is 0.17. Compute the work done by the applied horizontal force. Compute the work done ..
Photons of wavelength 490 nm are incident on a metal. What is the work function of the metal
A hollow aluminum cylinder 19.0cm deep has an internal capacity of 2.000 L at 24.0°C. It is completely filled withturpentine and then warmed to 78.0°C. How much turpentine overflows
A small mass is stuck to a point on the rim of a rolling wheel(radius of r) .. which traces out a path called a cycloid. The position vector of this point is given by r(theta)= r(theta - sin theta)i +r(1-cos theta)j. For a wheel rolling with constant..
Calculate the total amount of energy that flows into the space between the capacitor plates from to , by first integrating the Pointing vector over the surface that connects the edges of the two circular plates, and then integrating over time.
A spherical pinball, initially at rest, rolls down a ramp inclined at 18 degrees relative to horizontal. Determine the translational speed
Sit on a rotating chair. Slowly twist your body in one direction and after that rapidly twist it in the other. What is going to happen? Is angular momentum conserved and if not why.
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