A tap supplies water at 26°C while another supplies water at 82°C. If a man wishes to bath with water at 40°C the ratio of the mass of hot water to that of cold water is A 1:3 B 3:1 C 3:7 D 7:3 E 15:8

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

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?

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?