United states currency is printed using intaglio presses that generate a printing pressure of 7.8 x 104 lb/in2. a $20 bill is 6.1 in. by 2.6 in. calculate the magnitude of the force (in pounds) that the printing press applies to one side of the bill.

Examples of states of consciousness include a. daydreaming b. dreaming during sleep c. hypnosis d. all of the above

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

Aspring has a relaxed length of 33 cm (0.33 m) and its spring stiffness is 6 n/m. you glue a 76 gram block (0.076 kg) to the top of the spring, and push the block down, compressing the spring so its total length is 15 cm. you make sure the block is at rest, then at time t=0 you quickly move your hand away. the block begins to move upward, because the upward force on the block by the spring is greater than the downward force on the block by the earth. calculate y vs. time for the block during a 0.09-second interval after you release the block, by applying the momentum principle in three steps each of 0.03-second duration.