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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?
A pair of in-phase stereo speakers is placed side by side, 2m apart. You stand directly in front of one of the speakers, 5m from the speaker. What do you hear.
An aluminum rod is clamped one quarter of the way along its length and set into longitudinal vibration by a variable-frequency driving source. The lowest frequency that produces resonance is 4300 Hz. The speed of sound in an aluminum rod is 5100 m..
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. A second small object, with a charge of4.2 uC, is placed 1.2m vertically below the first charge. Find a) the electric field at the position of the upper charge..
find coefficient of kinetic friction between m1 and shelf.
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object and the slope surface is 0.15. What is the object's speed at the bottom of the slope
What portion of jet power lost to producing sound Powdered steel is placed in a container
A helicopter is ascending vertically with a speed of 5.02m/s. At a height of 140m above the Earth, a package is dropped from the window. How much time does it take for the package to reach ground.
The right and left end wires of two circuits are separated by a distance d = 2 mm. If L = 13 cm, V1 = 14 V, V2 = 17 V, R1 = 1 ?, what is the resistance (in ohms) of R2
The magnitude of the air resistance that opposes its downward motion is 258 N. Explain what is the magnitude of the acceleration of the rock?
Another student bumps the field-producing device so that the electric field is now (23.7 N/C)i + (15.5 N/C)k, What is the new electric flux through the hoop
An underwater diver sees the sun 55 degrees above horizontal. How high is sun above the horizon to a fisherman in a boat above the diver.
Assume the helmholtz coil consists of two sets of coaxial wire loops with 15 turns of radius R=75.00 cm, that are separated by R, and each coil carries the current 0.123A flowing in the same direction. Compute the magnitude and direction of magnetic ..
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