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You are cooking pasta, and using 4000 g of water.
a.) How much heat is needed to raise the temperature of the water from room temperature (20 degrees C) to its boiling point (100 degrees C)? Give your answer in Calories.
b.) Once it reaches the boiling point, how much heat is needed to boil the pot dry? Give your answer in Calories.
A cube of mass m = 7.15 kg is placed on an inclined plane of mass M = 6.67 kg, which makes an angle ? = 48.30° with the horizontal. What is the normal force on the inclined plane from the table underneath it
The angular momentum of a flywheel having a rotational inertia of 0.647 kg·m2 about its central axis decreases from 6.30 to 0.880 kg·m2/s in 3.00 s. How much work is done on the wheel
A proton is shot at 4 × 107 m/s toward a gold atom, with a mass 197 times that of the proton and deflects it straight back with 90% of its initial speed
Having trouble figuring out the total time it takes for something following the path of a brachistochrone. Starting at some point along and falling due to gravity to the lowest point. Equation I have is (a^.5/g^.5)*(1-cos(t))^.5/(cos(t_o)-cos(t))^.5 ..
A chunk of 22 gram ice is pulled from a freezer keeping temperature -25 deg. Celsius, and placed in an identical calorimeter as the one described in problem 1. What is the experimental latent heat of fusion of ice
The latent heat of fusion
A concave shaving mirror has a radius of curvature of 40.1 cm. How far is the mirror from the man's face
(a) what is the power factor of this circuit? (b) find the average power deliveredto the entire circuit (c) what is the average power delivered tothe resistor, to the capacitor, and to the inductor?
A high diver of mass 65.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. what average upward force did the water exert on her
A cardinal (Richmondena cardinalis) of mass 4.50×10?2 kg and a baseball of mass 0.144 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
Although California is known for earthquakes, it has large regions dotted with precariously balanced rocks that would be easily toppled by even a mild earthquake. What would be the magnitude of the maximum acceleration of the oscillation, in terms ..
You sled down a hill of 45-m vertical height. The combined mass of you and your sled is 130kg. How much work was doen against friction during your decent
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