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0.130 kg of water at 87.0°C is poured into an insulated cup containing 0.498 kg of ice originally at 0°C. How many kg of liquid will there be when the system reaches thermal equilibrium?
What is the speed of the two carts at the moment while their speeds are equal?
sound with frequency 1220 leaves a room through a doorway with a width of 1.16 . at what minimum angle relative to the
In seawater, a life preserver with a volume of 4.00×10?2m^3 will support a 72.0kg person (average density 980kg/m^3 ), compute the density of the material composing the life preserver
In a classroom demonstration, a speaker was mounted on the end of a 50.0 cm long arm, Calculate the range of sound frequencies heard by the students in the classroom
A girl with a mass of 40 kg is swinging from a rope with a length of 3.2 m. What is the frequency of her swinging
A concave spherical mirror has a radius of 11.0cm. Anobjeect of height 1.5cm is placed 15.0cm from the mirrir. Where is the image and How tall is the image
3 objects are connected on an inclined table with the masses of 8.0kg, 4.0kg and 2.0kg and the pulleys are frictionless. determine the acceleration and direction of the motion of the system
occasionally an asteroid will break into fragments due to a collision. these fragments can leave the atsteroid belt and
A uniform electric field exists in a region between two oppositely charged plates. What is the speed of the electron as it strikes the second plate
A Camera flash circuit (being used for a coil gun) with a capacitance of .180 mF is charged to a voltage of 330 volts. Calculate the energy stored in it. What resistance should be put in series with the capacitance to limit the discharging current to..
A photovoltaic cell can produce an average of 40 Wm^-2 (Watts permeter squared) of electrical energy if it is directly facing thesun at the equator.
A block is pushed up a 20 degree friction-less incline with an initial speed 12.0 m/s. How high up the plane does the block slide before coming to rest
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