Suppose a man who is 6ft tall is standing below a lamppost that is 20ft tall. the man is walking away for the lamppost at a rate of 5ft per second. 1. if the man is moving 5ft per second, make a conjecture as to the rate that his shadow is moving.

2. how far away from the lamppost is the man after 8 seconds?

3. how far is the end of his shadow from the bottom of the lamppost after 8 seconds? use similar triangles to solve this problem.

A2 kg ball travellng to the right with a speed of 4 m/s collidees with a 5 kg ball traveling to the left with a speed of 3 m/s. take right to be the positive direction. what is the total momentum of the two balls before they collide? what is the total momentum of the two balls after they collide?

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato