The acceleration of positive performing SHM is 12cm/sec at distance of 3cm from the mean position its time period is?

0.25 seconds

Explanation:

this is because speed is measured in metres per second

speed = distance/ time

12cm/sec = 3cm/T

T = 3cm ÷ 12cm/sec

T = 0.25sec

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2