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A microwave oven is powered with an electron tube called a magnetron that generates electromagnetic waves of frequency 2.30 GHz. The microwaves enter the oven and are reflected with the walls. The standing wave pattern produced in the oven can cook food unevenly, by hot spots in the food at antinodes and cool spots at nodes, so a turntable is often utilized to rotate the food and distribute the energy. If a microwave oven is used by a cooking dish in a fixed position, the antinodes can appear as burn marks on foods such as carrot strips or cheese. The separation distance among the burns is measured to be6.10 cm. Compute the speed of the microwaves from these data.
A camera with a 70.0-mm lens can focus on objects located from 1.40 m to an infinite distance away by adjusting the distance between the lens and the film. how far does the lens move with respect to the film
A "seconds pendulum" is one that moves through its equilibrium position once each second. (The period of the pendulum is precisely 2.000 s.) The length of a seconds pendulum is 0.9928m at Tokyo and0.9941m at Cambridge, England.
A spring of k=12.00 N/m has a block of mass 11- kg attached to it on a frictionless table. If the block is pulled a distance 0.17m to the right and released from rest, how long would it take the block to return to its equilibrium position? Give yo..
398 g of water at 64°C is added to ice at 0°C. If the final temperature of the system (which you can assume is isolated) is 0°C, determine how much ice melted
If a car of mass 1000 kg is moving along a highway at 92 km/h, what is car's kinetic energy as determined by someone standing alongside the highway.
You have a small electromagnet that consumes 350 W from a residential circuit delivering 110 V at 60.0 Hz. What is the inductance of the electromagnet
The orbit of the moon takes 27.321661 days (you should convert to seconds!) at a radius of 384,748 km, Calcualte the orbital speed of the moon
You are using the 10 cc syringe and the 50 cc syringe. The masses of the 10 cc piston and 50 cc piston are 15.2 g and 60.6 g, respectively. What is the predicted slope
A 30.0 capacitor initially charged to 30 is discharged by a 1.40 resistor. How long does it take to reduce the capacitor's charge to 2.00.
A proton accelerates from rest in a uniform electric field of 644 N/C. At some later time, its speed is 1.14 106 m/s. Find the magnitude of the acceleration of the proton
A certain satellite travels in an approximately circular orbit of radius 2.4 × 106 m with a period of 5 h 31 min. Calculate the mass of its planet from this information
a particle is moving in a simple harmonic oscillator potential vx kx22 x lt 0 but with infinite potential barrier at x
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