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A 200 g calorimeter contain 500 g of water at 21 degree Celsius. A 100g of ice at -20 degree Celsius is placed into the calorimeter. After thermal equilibrium the final temperature is 35 degree Celsius. The specific heat of ice is = 2090 J/kg. The specific heat of water = 4186 J/kg.
What is the specific heat of the material of the calorimeter?
The hot-reservoir temperature of a Carnot engine with 26.0 % efficiency is 70.0 ?C higher than the cold-reservoir temperature. What is the cold reservoir temp
An object 6.0mm high is placed 18cm from a convex mirror of radius of curvature 18cm. Determine the image distance using the mirror equation
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The flux through a loop is given by ?m = (0.20t 2 - 0.58t) , where ?m is in webers and t is in seconds. Find the induced emf as a function of time
What is tension in each rope
Each shot of the laser gun most favored by Rosa the Closer, the intrepid vigilante of the lawless 22nd century, Find the electric potential energy of the original capacitor when it is charged
A small piece of rock is weighed in air and then weighed while immersed in oil of density 800 kg/m3. If the weight in air is 21.5 N and the weight in the oil is 11.8 N, calculate the density of the rock
A 53.6 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 16.0° above the horizont, If the coefficient of static friction is 0.510, what minimum force magnitude is required from the rope to start the crate mo..
What is the propotion of the mass of these excess electrons to the mass of the penny.
An unstrained horizontal spring has a length of 0.37 m and a spring constant of 340 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes.
Unpolarized light of intensity I0 passes through six successive Polaroid sheets each of whose axis makes a 40? angle with the previous one
Two masses of 4.00 kg each, connected by a string, slide down a ramp making an angle of 45° with the horizontal. The coefficient of kinetic friction between m1 and the ramp is 0.33. The coefficient of kinetic friction between m2 and the ramp is 0...
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