Search over 10,000 free study notes

5(2c - 3) = 19

5x2c - 5x3 = 19

10c - 15 = 19

10c = 19 + 15

10c = 34

c = 34/10 = 3.4

20% efficiency means that 20% of the electrical energy going into the lamp is transfered to light, and 80% of the energy is lost/wasted.

First, let's make sure we're clear on what heterozygous inheritance means. Hetero means different like heterosexuals are attracted to a different gender than themselves, ...

bond making is exothermic, bond breaking is endothermic. It takes more energy to break the bonds than the energy released in making new bonds

• Water in the sweat evaporates due to the body temperature of the organism - This takes heat with it