Which type of heating system is often used to heat many buildings from a central location

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

The starship enterprise is caught in a time warp and spock is forced to use the primitive techniques of the 20th century to determine the specific heat capacity of an unknown mineral. the 125-g sample was heated to 96.3°c and placed into a calorimeter containing 85.9 g of water at 20.0°c. the heat capacity of the calorimeter was 14.2 j/k. the final temperature in the calorimeter was 24.5°c. what is the specific heat capacity (in j/g°c) of the mineral? enter to 4 decimal places.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?