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A plastic disk of radius 10 cm is spinning at 120 rpm. What is the magnitude of the centripetal acceleration of the outer rim of the disk?
2.0 moles of monatomic gas at atmospheric pressure has a total energy of 7480 J. what is the volume occupied a rigid cylinder by the gas
Four identical charges (+3.0µ C each) are brought from infinity and fixed to a straight line. Determine the electric potential energy of this group
What is the new tension in the slinky? (assume the slinky acts as a spring that obeys Hooke's Law) 6) What is the new mass density of the slinky? 7) What is the new time it takes for a wave pulse to travel down the slinky? 8) If the new wave pu..
How long after the first strike does Wilma hears the sound. What is the time interval between successive sound pulses she hears.
A race car goes around a level, circular track with a diameter of 1.00 km at a constant speed of 77 km/h. What is the car's centripetal acceleration in m/s2
A 6.0 V battery is connected to a wire made of three segments of different metals connected one after another, Find the potential difference across tungsten wire
You are at the controls of a particle accelerator, sending beam of 3.90 x 10^7 m/s protons (mass m) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of t..
A thin spherical shell of mass 0.450 kilogram and diameter 0.230 meter is filled with alcohol (ρ = 806kg/m3). Evaluate the acceleration of the alcohol-filled shell
The nucleus of a 125Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q =+54e. What is the electric force on a proton
Two resistors of 20 ohms and 25 ohms are connected in parallel. find the potential difference across the third resistor
A particular object weighs 343 N in air and 144 N when immersed in alcohol of density 0.7 g/cm3. What are the volume and the density of the object
Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 29.0 degrees. what is his speed as he leaves the roof
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