Without an external agent doing work, heat will always flow from a hotter to a cooler object. Two objects of different temperature always interact. There are three different ways for heat to flow from one object to another. They are conduction, convection, and radiation.
Explanation:
initial velocity U = 20m/s
Final velocity V = 35m/s
time = 15.0 secs
change in velocity = 35 - 15
= 20m/s
acceleration a = change in velocity/time V/t
a = (35-20)/15
a= 15/15
Hence, your acceleration is 1m/s^2
Some properties I know are
melting point<span>
, </span>
boiling point<span>
, and index of </span>
refraction<span>.</span>
When the number of electrons striking the anode of an X-ray tube is increased, the density of the emitted x-ray increases