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A metal ball of mass 0.76 kilogram with initial temperature of 30oC is dropped into a container of 1.01 kilogram of water at 20oC. If the final temperature is 20.31oC, find what is the specific heat of the metal?
A box of mass m, is released from rest and slides down a 3 m high frictionless chute. What is there common speed after the collision
A 0.3 kg ball traveling at 5 m/s strikes a wall and rebounds elastically, the collision took 0.02 seconds. What is the Impulse? What is the force on the wall
A capacitor with parallel circular plates of radius R is discharging via a current of 20.0 A. Consider a loop of radius R/3 that is centered on the central axis between the plates. How much displacement current is encircled by the loop?
A 71 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12 m. If the skier's speed at point A is 7.0m/s , what is the normal force exerted by the snow on the skier at point B? Ignore fricti..
Water is circulating through a closed system of pipes in a two floor apartment. On the first floor, the water has a gauge pressure of 3.4 x 105 Pascal and s speed of 2.1m/s. Find the gauge pressure of the water on the second floor
A 2.0cm -tall candle flame is 2.0 m from a wall. You happen to have a lens with a focal length of 42cm, For each location, what is the height of the image
Two adjacent natural frequencies of an organ pipe are found to be300Hz and330Hz. Calculate the fundamental frequency and length of this pipe
A 871-kg satellite is in circular orbit around the Earth and moving at a speed of 2.97 km/s. How much work must be done to move the satellite into another circular orbit that is twice as high above the surface of the Earth?
two people are carrying a uniform wooden board that is 3.40 long and weighs 160 .questions.1. if one person applies an
A charged sphere of mass 2.5x10^-5 kg and net charge of 6.0x10^-9 C hangs from a silk thread, suspended between two large parallel conducting plates. find the magnitude of the charge dentist on each plate
Water is flowing through a pipe with a constriction. The diameter of the narrow section is one-third the diameter of the wide section. what is the velocity of the fluid in the wide section
A tank having a volume of 0.11 m3 contains helium gas at 170 atm. How many balloons can the tank completely fill
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