Consider a line of children.
While the line of children is rotating, which of the following statements are correct? Check all that apply.

a) The player at the front of the line has the smallest angular acceleration.
b) The player at the front of the line has the smallest linear velocity.
c) All the children have the same angular acceleration.
d) All the children have the same linear velocity.

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

What is part of a line has one endpoint and continues in one direction?

Which is an advantage of subdividing science into different areas?