Calculate the elastic energy stored up in a wire originally 5 meter​ long and 10^-3 m in diameter which has been stretched by 3×10^-4 m due to a load of 10 kg.

The elastic energy is 245 J.

Explanation:

Length, L = 5 m

Diameter, D = 10^-3 m

Stretch, l = 3 x 10^-4 m

Load, F = 10 x 9.8 = 98 N

Let the elastic energy is U.

divide the right side by the left side

0.024÷1.2=0.02 for example

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