A boy standing some distance from the foot of a tall cliff claps
his hands and hears an echo 0.5s
later. If the speed of sound is
340ms-1, how far is he from the
cliff?
O A. 17m
O B. 34m
O C.85m
O D. 170m

answer: a ball

explanation: because it will bounce

i'm just gonna leave this comment here, so i can get a challange done-

explanation:

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2

here are some information of the future of geothermal energy:

-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

-we are hoping that one day, we will get all of our energy from renewable energy sources such as geothermal energy

hope this !