To get better acceleration, you want to reduce the inertia of your bicycle. You have your choice of spending $45 on only one of three light-alloy items, each reducing the inertia of your bicycle by the same amount:

A. a new seat post,
B. a new set of pedals
C. a new set of wheel rims.

Which type of microscope would allow the viewer to see ribosomes inside a cell?

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.