A calorimeter contains 1.25 kg of water at 21.5°C. A 0.15-kg block of an unknown substance at 65.5°C is placed in the water. The final temperature of the system is 22.0°C. What is the specific heat of the substance? What could the substance be? ​

Adelivery truck leaves a warehouse and travels 2.60 km north. the truck makes a left turn and travels 1.25 km west before making another right turn to travel 1.40 km north to arrive at its destination. what is the magnitude and direction of the truck's displacement from the warehouse?

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

Slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false