John took 45 mins to bicycle to his grandmother’s house, a total of 4 km. What was his velocity in km/hr?

According to the tide table below what time of day will the highest tide occur?

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.

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied