Aplanet rotates through one complete revolution every 22 hours. since the axis of rotation is perpendicular to the equator, you can think of a person standing on the equator as standing on the edge of a disc that is rotating through one complete revolution every 22 hours. find the angular velocity of a person standing on the equator.

ω=0.00454545… rad/s

Step-by-step explanation:

Recall: Angular Velocity ω= 2π/T

T is the period and you must convert it to seconds

That is ,T = 22 x 3600 (60 seconds make 1 minute and 60 minutes make 1 hr)

T = 79,200

Therefore: ω = 2π / 79,200 , where π = 180  

Substituting the value of T and π into the equation. We have  

 ω = 2 x 180 / 79,200

ω=0.00454545… rad/s

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

3100

step-by-step explanation: