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A 5.95kg object is thrown 17.10m/s at a 30 degree angle andcollides head on at its peak with a 14.5kg object fired at 27degrees which Is also at its peak. At what velocity was the 14.5kg object fired?
Two pulse of light (red and blue) enter a huge block of glass at the same time. What is the index of refraction for the blue light in the glass
One end of a 0.23-m copper rod with across-sectional area of 1.10 10-4 m2 is driven into thecenter of a sphere of ice at 0° C (radius = 0.14 m). The portion of the rod that is embedded inthe ice is also at 0° C.
A solenoid is 15 cm long and has 9000 turns. The current through the solenoid is 6A. What is the value of the magnetic field created
an electron in an x-ray machine is accelerated through a potential difference of 1.00 X 10^4 V, What is the kinetic energy of the electron
A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates an unbanked curve in the road. how fast can the truck be moving without the crate sliding
Two lightweight rods 24 {rm cm} in length are mounted perpendicular to an axle and at 180 ^circ to each other. At the end of each rod is a 480 {rm g} mass. The rods are spaced 42 {rm cm} apart along an axle. The axle rotates at 4.90 rad/s.
How many 111 W lightbulbs can you use in a 107 V circuit without tripping a 16 A circuit breaker? (The bulbs are connected in parallel, that means that the potential difference across each lightbulb is 107 V.)
Two forces, 375 N at 11deg and 323 N at 25deg are applied to a car in an effort to accelerate it. If the car has a mass of 3730kg, what magnitiude of acceleration does it have
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. What is the change in entropy of the boiling water
sometimes a person cannot clearly see objects close up or far away. to correct this type of vision bifocals are often
An object glides on a horizontal tabletop with a coefficient of kinetic friction of 0.3. If it comes to rest after 1.3 seconds, what was its initial velocity
A photon with a wavelength 4.40 scatters from an electron initially at rest. Find out the wavelength of the scattered photon when the scattered electron has its utmost kinetic energy. Kmax = 2.37*20^-14.
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