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On its highest power setting, a microwave oven can increase the temperature of 0.3953-circular area 22 kg of spaghetti by 45.0°C in 120 s.
-specific heat of spaghetti is 3.76 × 10 J/(kg⋅°C) cm in diameter
What is the peak electric field strength, in volts per meter, absorbed by the spaghetti?
What is the corresponding peak magnetic field strength, in teslas?
The primary coil of a step-up transformer is connected across the therminals of a standard wall socket, and resistor 1 with a resistance R1 is connected across the secondary coil. The current in the resistor is then measured.
Assume bubbles formed on the surface of the objects that your were submerging. How would these bubbles affect the measurement of the density of the objects? Would the bubbles make the gauged densities too large, or too small? Describe.
A constant horizontal force a pushes a kg FedEx package across a frictionless floor on which an xy coordinate system has been drawn. package's x and y velocity components versus time t.
If we observe a stars spectrum and find that the peak power occurs at the border between blue and ultraviolet light, what is the surface temperature of the star in Celsius
A firefighter with a weight of 702 N slides down a vertical pole with an acceleration of 2.90 m/s2, directed downward. What are the magnitudes and directions (choose the positive direction up) of the vertical forces
What are the frequencies of vibration for the normal modes of this system? What are eigenvectors?
A ray of in glass is incident on a plane glass-air boundary. The index of refraction of glass is 1.50 and the index of refraction of air is 1.00. The angle of incidence in glass is 45o. Explain what happens to this ray
Radio astronomers often study the radiation emitted by a hydrogen atom from a transition between the two hyperfine levels associated with the ground state
To a fish, the 4.20 mm thick aquarium walls appear to be only 3.80 mm thick. What is the index of refraction of the walls
Assume that we start with the valve closed, add one (or more) gas molecules to one side, and then open the valve. Which statement about this experiment
A parallel-plate capacitor is formed from two 1.0 cm × 1.0 cm electrodes spaced 2.7 mm apart. The electric field strength inside the capacitor is 1.0×106 N/C What is the charge (in nC) on negative electrode? What is the charge (in nC) on positive ele..
A Styrofoam cooler has total wall area (including lid) of 0.80 m2 and wall thickness of 2.0 centimeter. Obtain how much of the ice melts in three hours
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