Question

On its highest power setting, a microwave oven increases the temperature of 0.440 kg of spaghetti...

On its highest power setting, a microwave oven increases the temperature of 0.440 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 ✕ 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 24.0 cm in diameter.
W/m2
(c)
What is the peak electric field strength of the microwave in V/m?
V/m
(d)
What is its peak magnetic field strength in T?
T

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
On its highest power setting, a 770-watt microwave oven heats a bowl of spaghetti. (a) Find...
On its highest power setting, a 770-watt microwave oven heats a bowl of spaghetti. (a) Find the average intensity of the microwaves, given they are absorbed over a circular area 23 cm in diameter. W/m2 (b) What is the peak electric field strength of the microwave? V/m (c) What is its peak magnetic field strength? T
An AM radio transmitter broadcasts 46.0 kW of power uniformly in all directions. (a) Assuming all...
An AM radio transmitter broadcasts 46.0 kW of power uniformly in all directions. (a) Assuming all of the radio waves that strike the ground are completely absorbed, and that there is no absorption by the atmosphere or other objects, what is the intensity (in W/m2) 28.0 km away? (Hint: Half the power will be spread over the area of a hemisphere.) W/m2 (b) What is the maximum electric field strength (in V/m) at this distance? V/m
Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.250 mW....
Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.250 mW. (a) If such a laser beam is projected onto a circular spot 1.60 mm in diameter, what is its intensity (in watts per meter squared)?     W/m2 (b) Find the peak magnetic field strength (in teslas).    T (c) Find the peak electric field strength (in volts per meter). V/m
A 14.00 kg particle starts from the origin at time zero. Its velocity as a function...
A 14.00 kg particle starts from the origin at time zero. Its velocity as a function of time is given by v with arrow = 9t2î + 4tĵ where v with arrow is in meters per second and t is in seconds. (Use the following as necessary: t.) (a) Find its position as a function of time. r =________ (c) Find its acceleration as a function of time. a=_______m/s^2 ( (d) Find the net force exerted on the particle as...
A heater is being designed that uses a coil of nichrome wire (ρ = 100x10-8 Ω·m)...
A heater is being designed that uses a coil of nichrome wire (ρ = 100x10-8 Ω·m) to generate 100 W using a voltage of V=220V. The wire is 2000 m long. What cross sectional area should the wire have? None of the above 1.7e-2 m2 7.23e-4 m2 4.13e-6 m2 2.06e-3 m2 What is the magnification of a converging lens with a focal length of 7.5 cm when an object is held 5 cm from it? 3.00 2.14 1.36 5.00 None...
1. A cord of mass 0.65 kg is stretched between two supports 8.0 m apart. If...
1. A cord of mass 0.65 kg is stretched between two supports 8.0 m apart. If the tension in the cord is 140 N, how long will it take a pulse to travel from one support to the other? 2. A 50.0 Kg ball hangs from a steel wire 1.00 mm in diameter and 6.00 m long. What would be the speed of a wave in the steel wire? 3. The intensity of an earthquake wave passing through the earth...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT