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An artillery shell of mass 10.00 kg, lying at rest on the ground, accidentally detonates, exploding into three pieces of shrapnel. One piece of mass 1.10 kg is flung in the -x direction at 24.6 m/s, while a second piece of mass 1.50 kg is propelled in the -y direction at 13.8 m/s. Determine the angle at which the remaining piece of shrapnel travels, relative to the +x axis. Calculate the speed of the third piece of shrapnel.
Find the center of mass of a system composed of three spherical objects with masses of 3.4kg , 2.3kg , and 4.2kg and centers located at (-6.2m , 0), (2.0m , 0), and (2.8m , 0), respectively.
The air inside a bicycle tirenpumphas 202 joules of work done on it as 66.1 joules of heat is conducted away from it
A certain electric extension cord has a resistance of 4.96 ?. Suppose it is replaced by an extension cord made of the same material. What is the resistance of the new cord
A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a uniform speed of 4.0 m/s, How long does it take him to catch his opponent
A monochromatic point source of light emits 5.5 W of electromagnetic power uniformly in all directions. Find the (magnitude of the) Poynting vector at a point situated at each of the following locations:
An old-style TV set places 25 kV across two plates of a parallel plate capacitor. An electron is released very close to one plate, compute the speed of the electron when it exits the hole
Two cylindrical rods are identical, except that one has a thermal conductivity k1 and the other has a thermal conductivity k2. they are placed between two walls that are maintained at different temperatures TW (warmer) and TC (cooler).
In Rutherford scattering of alpha particles from a thin gold foil, determine a maximum possible radius of the nucleus
Examining your image in a convex mirror whose radius of curvature is 24.8cm , you stand with the tip of your nose 10.2cm from the surface of the mirror. Where is the image of your nose located
The surface between a 12kg block , the 16kg wedge and between 16 kg wedge and the horizontal plane are smoothe, What is the force F which must be exerted on the 16 kg block in order that the 12 kg block
An object is placed to the left of a lens, and a real image is formed to the right of the lens. What is the focal length of the lens
The flowers of the bunchberry plant open with astonishing force and speed, causing the pollen grains to be ejected out of the flower in a mere 0.30 ms at an acceleration of 2.5×104 m/s2. Evaluate with what speed are pollen grains ejected from a b..
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