A laserpointer has a beam intensity of 55 wm2 and a beam
A laserpointer has a beam intensity of 55 W/m2 and a beam radius of 2.1 mm. A first grader attempts to use it to move a black toy car. Assuming perfect absorption, what is the force on the car?
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a laserpointer has a beam intensity of 55 wm2 and a beam radius of 21 mm a first grader attempts to use it to move a
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