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On its highest power setting, a microwave oven increases the temperature of 0.350 kg of spaghetti...
On its highest power setting, a microwave oven increases the temperature of 0.410 kg of spaghetti...
On its highest power setting, a microwave oven increases the temperature of 0.410 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 103 /(kg.)? w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 16.0 cm in diameter. W/m2 (c) What is the peak electric field strength of the microwave...
On its highest power setting, a microwave oven increases the temperature of 0.380 kg of spaghetti...
On its highest power setting, a microwave oven increases the temperature of 0.380 kg of spaghetti by 45.0°C in 145 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 10°/(kg. c)? 444.2 w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 22.0 cm in diameter. 1.41E4 X W/m2 (c) What is the peak electric field strength...
On its highest power setting, a microwave oven increases the temperature of 0.370 kg of spaghetti...
On its highest power setting, a microwave oven increases the temperature of 0.370 kg of spaghetti by 45.0°C in 150 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 103 J/(kg . °C)? w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 21.0 cm in diameter W/m2 (c) What is the peak electric field strength of...
w standing electromagnetic wave in a 610 W microwave oven. The oven has a length of...
w standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 0.21 m and a square cross-section of side w = 0.40 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and go to zero at the sides. The electric field reaches its peak magnitude on the cross-sectional area, A. Take the...
Problem 7 Two microwave frequencies are authorized for use in microwave ovens: 900 MHz and 2,560 ...
i need help with this problems
Problem 7 Two microwave frequencies are authorized for use in microwave ovens: 900 MHz and 2,560 MHz. a) On its highest power setting, a microwave oven can produce 1.00 kW of power onto a 30.0 by 40.0 cm area. What is the intensity in W/m2? b) Calculate the peak electric and magnetic field strength in these waves. c) The maximum safe intensity of microwaves for human exposure is 1.00 W/m. If a radar unit...
The figure shows a standing electromagnetic wave in a 610 W microwave oven. The oven has...
The figure shows a standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 1 = 0.21 m and a square cross-section of side w = 0.70 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and B go to zero at the sides. The electric field reaches its peak magnitude on...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.00...
Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 1.00 W/m2. If a radar unit leaks 10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away must you be to be exposed to an average intensity considered to be safe? Assume that the power spreads uniformly over the area of a sphere with no complications from absorption or reflection. minimum safe exposure distance: mm What is...
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250...
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 3.96 mm in diameter, what is its intensity? W/m2 (b) Find the peak electric field strength. V/m (c) Find the peak magnetic field strength.
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250...
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mw. (a) If such a laser beam is projected onto a circular spot 4.62 mm in diameter, what is its intensity? W/m2 (b) Find the peak electric field strength V/m (c) Find the peak magnetic field strength. Additional Materials
On its highest power setting, a microwave oven increases the temperature of 0.410 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 103 /(kg.)? w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 16.0 cm in diameter. W/m2 (c) What is the peak electric field strength of the microwave...
On its highest power setting, a microwave oven increases the temperature of 0.380 kg of spaghetti by 45.0°C in 145 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 10°/(kg. c)? 444.2 w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 22.0 cm in diameter. 1.41E4 X W/m2 (c) What is the peak electric field strength...
On its highest power setting, a microwave oven increases the temperature of 0.370 kg of spaghetti by 45.0°C in 150 s. (a) What was the rate of power absorption by the spaghetti in W, given that its specific heat is 3.76 x 103 J/(kg . °C)? w (b) Find the average intensity of the microwaves in W/m², given that they are absorbed over a circular area 21.0 cm in diameter W/m2 (c) What is the peak electric field strength of...
w standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 0.21 m and a square cross-section of side w = 0.40 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and go to zero at the sides. The electric field reaches its peak magnitude on the cross-sectional area, A. Take the...
i need help with this problems
Problem 7 Two microwave frequencies are authorized for use in microwave ovens: 900 MHz and 2,560 MHz. a) On its highest power setting, a microwave oven can produce 1.00 kW of power onto a 30.0 by 40.0 cm area. What is the intensity in W/m2? b) Calculate the peak electric and magnetic field strength in these waves. c) The maximum safe intensity of microwaves for human exposure is 1.00 W/m. If a radar unit...
The figure shows a standing electromagnetic wave in a 610 W microwave oven. The oven has a length of 1 = 0.21 m and a square cross-section of side w = 0.70 m. The electric field is shown in red and the magnetic field in blue at one instant. The standing wave has 4 nodes in the interior of the microwave and both E and B go to zero at the sides. The electric field reaches its peak magnitude on...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
The helium-neon lasers most commonly used in student physics laboratories have average power outputs of 0.250 mw. (a) If such a laser beam is projected onto a circular spot 4.62 mm in diameter, what is its intensity? W/m2 (b) Find the peak electric field strength V/m (c) Find the peak magnetic field strength. Additional Materials
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