Aconstruction crane weighing 12.000 lbf fell rom a height of 400 t to the street below during a severe storm. for g 32.05 t/s? determine the mass, in lb, and the change in gravitational potential energy of the crane, in ft lbf.

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

Iknow #2 is d. i just need to know why

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100