A) A 2.20 kg pendulum starts from a height of 5.00 m. It swings back and forth through one whole oscillation but only returns to a maximum height of . How much negative work was done on the pendulum during the first entire oscillation? b) After a long time the pendulum eventually winds down and comes to a stop. How much total negative work was done on the pendulum to bring it to rest at its lowest point?

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.

Boiling water is an example of physical change. true or false

Amaterial that provides resistance to the flow of electric current is called a(an) (1 points)