Of all the physics-based experiments that Czerski discussed, which would you be most likely to try yourself? Why? Have you ever performed any physics experiments before? Discuss and explain.

Sara is creating an experiment. her hypothesis states the following. if i increase the air in my tires, then i will get better gas mileage. if this is her hypothesis what column titles do we need in our date table? a. air pressure in tire (psi) and gas mileage (mph) b. air pressure in the atmosphere (psi) and gas mileage (mph) c. miles (m) and gallons per mile (g) d. old battery and new battery

The electric potential a distance r from a small charge is proportional to what power of the distance from the charge? a. r^-1 b. r c. r^-2 d. r^2

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?