Why did the author most likely write "Meeting Juli a to explain why everyone should have a pen pal
to warn people about the dangers of having a pen pal
to share a positive experience she had with a pen pal
to show her parents why it is important to have a pen pal

Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?

A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.