Which of the following must an engineer take into account when designing a roller coaster? the rates at which the roller coaster will change directions the mass of the roller coaster the total mass of the people that will ride the roller coaster the acceleration of the roller coaster due to gravity (there may be more than one answer)

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.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Match these items. 1. coulombs __force 2. ohms __emf 3. centimeters __resistance 4. newtons __charge 5. volts __length