Suppose you are sitting in a car that is speeding up. draw a system schema for this situation. then draw a well-separated forcediagrams (free-body diagrams) of the following objects:
a. your own body;
b. the seat in which you are sitting (apart from the car);
c. the car (apart from the seat);
d. the road surface where the tires and the road interact.
assume the car has rear wheel drive. describe each force in words; show larger forces with longer arrows. identify the newton's third law pairs. (how are they visible in the system schema? )

Water at room temperature of 20.0°c is poured into an aluminum cylinder which has graduation markings etched on the inside. the reading in the graduations is 300.0 cc. the cylinder with the water in it is then immersed in a constant temperature bath at a temperature of 100°c. what is the reading for the level of water on the graduations of the cylinder after the water and the cylinder reach thermal equilibrium with the bath? the volume coefficient of expansion of water is 2.07 x 10^-4 k-1, and the linear coefficient of expansion of aluminum is 23.0 x 10^-6 k-1. a) 305.0 cc b) 304.0 cc c) 303.5 cc d) 303.3 cc e) 304.5 cc

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

How to tell if a molecule is polar or nonpolar with electronegativity