18. A medical institution requests 2 g of bismuth-214, which has a half-life of 20 min. How many grams of bismuth-214 must be prepared if the shipping time is 2 hours?
a. 128
b. 64
C. 32
d. 16
e. 6

Aforce of 240.0 n causes an object to accelerate at 3.2 m/s2. what is the mass of the object?

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline