How many calories are needed to increase the temperature of 25 g of water from 30° C to 65° C

Why are people not able to scuba dive in the deep part of the ocean

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel