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A 4 kilogram block of ice is removed from a freezer where its temperature was maintained at ? 20 degrees Celsius. How much heat does the ice absorb as it is warmed to ? 10 degrees? (The specific heat capacity of ice is 2,000 joules per kilogram degree Celsius.)
When the displacement in SHM is 0.4 the amplitude A, what fraction of the total energy is kinetic energy, What fraction of the total energy is potential energy
An ammeter with an internal resistance of 53.0 ? measures a current of 5.75 mA in a circuit containing a battery and a total resistance of 1290 ?. Determine the actual value of the current
Find the angular velocity of a centrifuge in which a particle 10 cm from the axis of rotation experiences a radial acceleration of 10^3 times g
A long line carrying a uniform linear charge density +56.0 µC/m runs parallel to and 10 cm from the surface of a large, Find the location of all points on a line perpendicular to the sheet and the charged line
A grade school student plans to build a 34-power telescope as a science fair project. What focal length is needed for her objective lens
Point charges q1 = -4.10 nC and q2 = -4.10 nC are separated by distance 3.00 mm, forming an electric dipole. What is the direction fo the dipole moment
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. The aluminum is 3 mm thick.
q. a solid nonconducting sphere of radius r has a positive charge q distributed uniformly throughout its volume. since
A 0.07-kg lead bullet traveling 296 m/s strikes an armor plate and comes to a stop. If all of the bullet's energy is converted to heat that it alone absorbs
A bird flies 3.0 km due west and then 2.0 km due north. Another bird flies 2.0 km due west and 2.0 km due north. What is the angle between the net displacement vectors of the two birds
A 890-Hzsounds travels through pure hydrogen. The wavelength of the sound is measured to be 1.44 m, What is the speed of sound in hydrogen
You are designing the section of a roller coaster ride. Previous sections of the ride give the train a speed of 14.9 m/s at the top of the incline, find the minimum radius you can use for the vertical loop
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