Answer: The distance between the man and the plane increasing at a rate of 400ft/s
Explanation: Please see the attachments below
Hi there
Definition of heat
the quality of being hot; high temperature.
Answer:
x×y=2×2=4. 4×z=4×3=12. 4+12=16
they are miles per hour(mph),kilometers per hour(km/h),meters per second(m/s)
When a match stick is struck, some of the chemical energy is transformed into heat and light and the rest is converted into matter. A match stick has a lot of chemical energy stored in it. When its struck, It start burning. The chemical energy stored in it is transformed into heat energy and light energy. The rest of it turn into ashes and reaction gases.
