A.) wet 21° Celcius, dry 27° Celcius
Answer:
Yes my name is Robert I can help you
Answer:
<em>Its true</em> i think
Explanation:
Answer:
The magnitude of change in momentum is (2mv).
Explanation:
The momentum of an object is given by the product of mass and velocity with which it is moving.
Let the mass of ball is m. A tennis player smashes a ball of mass m horizontally at a vertical wall. The ball rebounds at the same speed v with which it struck the wall.
Initial speed of the ball is v and final speed, when it rebounds, is (-v). The change in momentum is given by :
p = final momentum - initial momentum
So, the magnitude of change in momentum is (2mv).
Very interesting question. What happens is:
Waters temperature varies less and slower than the airs temperature.
Which means that if during the year we have temperatures of 15ºC, 40Cº and 31ºC, the air will always be on those temperatures (reason for which thermometers are on the air, not on the water).
If we had those same temperatures, in the end the water will be hotter (because it would be "recovering" its temperature). - Mainly because there were more hotter temperatures than cold ones (remember the comparison is made with air temperature).
Therefore, the answer is:
C.
Hope it helped,
BioTeacher101