A laser has a power of 22.2 W and a beam radius of 0.478 mm. (a).Find.the.intensity of the laser. Enter a number. ty defined? What factors affect the intensity of a beam of light? W/m- (b) Suppose you were floating in space and pointed the laser beam away from you. What would your acceleration be? Assume your total mass, including equipment, is 74.8 kg and that the force is directed through your center of mass. Hint: The change in momentum is the same as in the nonreflective case. We know that the acceleration of an object is given by Newton's second law. How do we determine the net force acting on the accelerating object in this case? m/s (c) Calculate your acceleration if it were due to the gravity of a space station with mass 1.06 x 106 kg and center of mass 117.1 m away. m/s2 (d) Calculate the peak electric and magnetic fields of the laser. Emax = N/C B. max If you were planning to use your laser welding torch as a thruster to get you back to the station, don't bother because the force of gravity is stronger. Better yet, get somebody to toss you a line.
A laser has a power of 22.2 W and a beam radius of 0.478 mm. (a).Find.the.intensity of the laser. Enter a number. ty defined? What factors affect the intensity of a beam of light? W/m- (b) Suppose you were floating in space and pointed the laser beam away from you. What would your acceleration be? Assume your total mass, including equipment, is 74.8 kg and that the force is directed through your center of mass. Hint: The change in momentum is the same as in the nonreflective case. We know that the acceleration of an object is given by Newton's second law. How do we determine the net force acting on the accelerating object in this case? m/s (c) Calculate your acceleration if it were due to the gravity of a space station with mass 1.06 x 106 kg and center of mass 117.1 m away. m/s2 (d) Calculate the peak electric and magnetic fields of the laser. Emax = N/C B. max If you were planning to use your laser welding torch as a thruster to get you back to the station, don't bother because the force of gravity is stronger. Better yet, get somebody to toss you a line.
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Transcribed Image Text:A laser has a power of 22.2 W and a beam radius of 0.478 mm.
(a).Find.the.intensity of the laser.
Enter a number.
y defined? What factors affect the intensity of a beam of light? W/m
(b) Suppose you were floating in space and pointed the laser beam away from you. What would
your acceleration be? Assume your total mass, including equipment, is 74.8 kg and that the force
is directed through your center of mass. Hint: The change in momentum is the same as in the
nonreflective case.
We know that the acceleration of an object is given by Newton's second law. How do we determine
the net force acting on the accelerating object in this case? m/s
(c) Calculate your acceleration if it were due to the gravity of a space station with mass
1.06 x 10° kg and center of mass 117.1 m away.
m/s2
(d) Calculate the peak electric and magnetic fields of the laser.
E
max
N/C
B
max
%3D
If you were planning to use your laser welding torch as a thruster to get you back to the station,
don't bother because the force of gravity is stronger. Better yet, get somebody to toss you a line.
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