Which energy transformation occurs when a firecracker explodes

Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided

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

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine