The original laser beam will be very large (~1 km in diameter). Initially neglecting spreading of the beam
(valid when a nanocraft is close to earth), estimate the acceleration that the nanocraft will feel, assuming
the total laser power over the entire 1-km diameter is a sustained 100 GigaWatts (1 GigaWatt = 10
9 W). Don't
forget to account for the finite size of the sail, or the fact that it is 100% reflective.
a. 330,000 m/s^2
b. 10.7 m/s^2
c. 3.2 m/s^2
d. 0.23 m/s^2
e. 670,000 m/s^2

Who was the first scientist to measure speed as distance over time?

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?