You've recently read about a chemical laser that generates a 20.0-cm-diameter, 22.0 mw laser beam. one day, after physics class, you start to wonder if you could use the radiation pressure from this laser beam to launch small payloads into orbit. to see if this might be feasible, you do a quick calculation of the acceleration of a 20.0-cm-diameter, 99.0 kg, perfectly absorbing block. what speed would such a block have if pushed horizontally 100 m along a frictionless track by such a laser?

0.3847 m/s

Explanation:

= Intensity =

d = Diameter = 20 cm

r = Radius =

c = Speed of light =

s = Distance = 100 m

P = Power = 22 MW

Pressure due to the laser is given by

Force is given by

Acceleration is given by

Speed of the block would be

The speed of the block is 0.3847 m/s

im not to sure what it is

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles