If the mass of a material is 42 grams and the volume of the material is 15 cm^3, what would the density of the material be?unit:

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c