How much power is exerted by lifting a 500 N barbell 2.2 m above the ground in 2 seconds?

W=Fd=(500N)(2.2m)=1100Nm=1100J

which is also the gain in PE

Explanation:

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.