An 88.5 g sample of an unknown solid is heated to 55.0°C and placed into a calorimeter containing 150. g of water at 23.0°C. If the final temperature of the unknown solid and the water is 26.0°C, what is the specific heat of the solid?

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Which of the following is an advantage of solar energy?

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity hurry!