Football game customarily begins with a coin toss to determine who kicks off. the referee tosses the coin up with an initial speed of 5 m/s. in the absence of air resistance, how high does the coin go above its point of release? hint: draw the co-ordinate system. note that the object is moving upwards, but the acceleration is downwards. they will have opposite signs, unline the rock in the well problem done in class where the rock fell in the downward direction and the velocity and acceleration were in the same direction.

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.

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

Amira pulls a 3 pound wagon 4 feet. how much work has she done?