Atrain travels 94 kilometers in 5 hours, and then 84 kilometers in 3 hours. what is its average speed?

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

Which word expression describes how much to calculate pressure

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.