Which of the following statements are true? (select all that apply.)

a. all parts of a rotating wheel must have the same angular velocity.
b. none of these statements are true.
c. angular velocity and linear velocity have the same dimensions.
d. all parts of a rotating wheel must have the same angular acceleration

Explanation:

The correct statements are :

1. All parts of a rotating wheel must have the same angular velocity.

2. All parts of a rotating wheel must have the same angular acceleration.

We know that the rate of change of angular velocity is called angular acceleration of the wheel. It is clear that all parts of wheel must have same angular speed as well as angular acceleration.            

The dimension of linear speed,

The dimension of angular speed,

They have different dimensional formula

Hence, the correct statements are (A) and (D).

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

if they have a finite resultant