Answer:
A fan pushes hot air out of a vent and into a room. The hot air displaces cold air in the room, causing the cold air to move closer to the floor.
The hot air displacing the cold air is an example of transfer by
Explanation:
when two vectors are inclined at some angle to each other then the magnitude of resultant of two vectors is given as
here A and B are the magnitude of two vectors and theta is the angle between them
now here we know that two vectors are of magnitude 0.25 m/s^2 each and they are inclined at angle of 45 degree
now we will plug in all data above
A = B = 0.25
So the magnitude of resultant acceleration will be 0.46 m/s^2
Velocity:
60 meters/ 5 seconds= 12 meters/second
Velocity=12meters/second
(60 meters divided by 5 seconds equals 12 meters per second)
Hope this helps!
The energy of a substance is defined as the capacity to do work.The energy may be possessed by the body in various forms.It may be kinetic,potential,magnetic.electric etc.
a- The energy can be transformed from one form to another form.It is called energy conversion.
c-The power defined as the consumption of energy per unit time.
Here E is the energy and W is the work done,t is the time.
d-The S.I unit of energy is Joule[J].
Hence the correct answer to the question is b. the ability to do work
Explanation:
Kinetic Energy of air molecules. for molecules of air, the temperature of the air is directly proportional to the mean kinetic energy of the air molecules.