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A quarter-pound hamburger with all the fixings has a mass 220g . The food energy of the hamburger is 2.4MJ .
Part A What is the energy equivalent of the mass of the hamburger?
Part B By what factor does the energy equivalent exceed the food energy?
What is the net upward force on an airplane wing of area 20.7 m2 if the speed of air flow is 232 m/s across the top of the wing and 215 m/s across the bottom? (The density of air where the airplane flies is ρair = 1.21 kg/m3.)
Evaluate (a) the acceleration of each object, (b) the tension in the string, and (c) the coefficient of kinetic friction between m2 and the incline.
Coulomb's Law gives us an expression for the electric field caused by a point charge with magnitude . Suppose we have several point charges. The electric field at a location is the vector sum of point charge contributions.
A circuit with 2 capacitors, C1 = 22.0 ?F and C2 = 16.0 ?F, are hooked up in parallel to each other, Calculate how much energy each capacitor can store
How much work is done by the motor when the motor when the position of the arm is moved from x=0.150m to x=0.750m? what is the power of the motor in watts
At its highest temperature, a space heater has a resistance of 15.5 ?, What is the average power output of the space heater
Two parallel plates, each of area 8.17 cm2, are separated by 6.20 mm, Calculate the amount of the electric charge stored on each plate
A late night time talk show host drops a watermelon from the top of the studio. If the speed of the watermelon is 21 m/s when it hits the ground, how tall is the studio?
A screen with a double-slit with a slit separation of 0.03 mm is illuminated by light of a wavelength 600nm. What is the distance from the slit to the screen in meters
At a dock, a crane lifts a 1200 kg container 30 m, swings it out over the deck of a frieghter, and lowers the container into the hold of the freighter, which is 10 m below the level of the dock. The acceleration of gravity is 9.8 m/s2. Neglect fri..
A singly charged positive ion has a mass of 2.53 10-26 kg. After being accelerated through a potential difference of 270 V, the ion enters a magnetic field of 0.590 T, Calculate the radius of the path of the ion in the field
The pressure on a 1 L-sample of water is increased from 1 atm to 200 atm, reducing its volume by 1%. Draw the pressure-versus-volume graph for this process
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