Estimate the number of ping-pong balls that can be packed into an average size room (without crushing them). given that ping-pong ball has a radius of about 1.5 cm and assume that a typical room has dimensions12 ft ×18 ft ×9 ft.

3,893,845.918 Ping-Pong balls

Explanation:

The volume of an average room is:

(1)

(2)

Now let’s transform this to units of , knowing :

(3)

On the other hand, we have Ping-Pong balls with a radius , and their volume is given by:

(4)

(5)

(6)

Now, the number of Ping-Pong balls that can be packed into the room is:

(7)

 (8)

This is the number of Ping-Pong balls that can be packed into an average size room

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

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