What is the rms value of a the electric field and b the, Ask an Expert

Academics

An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is s=1.23E9 W/m^2.

a.What is the rms value of (a) the electric field and (b) the magnetic field in the electromagnetic wave emitted by the laser?

b.Assumed that the same laser is used to melt 1 kg Aluminum rod with a cross sectional area of 0.01 m2, at an initial temperature of 20°C, an specific heat of 910 J/g°C and a melting point of 660°C.

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M9650475

Have any Question?Write your Review or question?

Related Questions in Physics

Question a proton is released from rest at the positive

Question: A proton is released from rest at the positive plate of a parallel-plate capacitor. It crosses the capacitor and reaches the negative plate with a speed of 50,000 m/s. What will be the final speed of an electro ...

Question in short-track speed skating the track has

Question: In short-track speed skating, the track has straight sections and semicircles 16 m in diameter. Assume that a 64kg \;kg skater goes around the turn at a constant 11m/s Part A: What is the horizontal force on th ...

Question an object of mass m is traveling on a horizontal

Question: An object of mass m is traveling on a horizontal surface. There is a coefficient of kinetic friction Âµ between the object and the surface. The object has speed v when it reaches x=0 and encounters a spring. Th ...

Question your physics textbook is sliding to the right

Question: Your physics textbook is sliding to the right across the table. Part A Identify all forces acting on the object and draw a free-body diagram. Draw the vectors starting at the black dot. The location and orienta ...

Question suppose the emf generated by a coil rotating in a

Question: Suppose the emf generated by a coil rotating in a magnetic field is zero at t=0 and increases to its first peak at to=0.11 ms. When is the emf first one-fourth of its maximum, in seconds? When is the emf next o ...

Question a person is diving in a lake in the depth of h 75

Question: A person is diving in a lake in the depth of h = 7.5 m. The density of the water is ? = 1.0 x103 kg/m3. The pressure of the atmosphere is P0 = 1.0 x 105 Pa. The surface area of the top of the person's head is A ...

Can you please explain how to get an answer for this

Can you please explain how to get an answer for this question and what formula to use step by step and why. "In a race you first ride a bicycle at an anverage speed of 18.4 mi/h for 19.5 miles, then you must run for anot ...

A high-energy muon was produced in the upper atmosphere 80

A high-energy muon was produced in the upper atmosphere 80 km above the sea level. 380 μs later, a detector at the sea level detected it. a. How long was the journey according to this muon? b. What was the proper time fo ...

Question a particle with a charge of 510nc is moving in a

Question: A particle with a charge of ? 5.10nC is moving in a uniform magnetic field of B= -(1.25T)k. The magnetic force on the particle is measured to be: F = - (3.60*10^-7N) i + (7.60*10^-7N) j. Part A: Are there compo ...

Question a person takes a trip driving with a constant

Question: A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22 minute rest stop. If the persons average speed is 77.8 km/h how much time is spent on the trip and what distance did they trave ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert