A young athlete has a mass of 42 kg. On a day when there is no wind she runs a 100m race in 14.2

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

In the first law of thermodynamics, triangle e=q-w, what does q stand for

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?