Answer:
Infrared
Explanation:
This is the electromagnetic spectrum just above the visible light spectrum with higher energy (and higher frequency). This electromagnetic radiation is responsible for feeling the heat when you place your hand close to the side of a fire. It is also harnessed in night vision where bodies that emit some form of heat are visible due to their emission of IR.
Answer:
The force of the weight
Explanation:
When we are lying on the bed, our weight is distributed along of our body and the equivalent of the force is given by the following expression.
w = m*g
where:
m = mass [kg]
g = gravity acceleration [m/s^2]
w = weight of the body [N]
At the moment when we are sleeping our body is at equilibrium, because the mattress is exerting a force with the same amount of the weight but in the opposite direction.
Answer:
Definition Of Pressure In Liquid Liquid has its own weight, this causes pressure on the wall of the container in which liquid is held, it also causes pressure on any object immersed in the liquid". More About Pressure in Liquid: Pressure acts in all directions.
Explanation:
Here we will the speed of seagull which is v = 9 m/s
this is the speed of seagull when there is no effect of wind on it
now in part a)
if effect of wind is in opposite direction then it travels 6 km in 20 min
so the average speed is given by the ratio of total distance and total time
now since effect of wind is in opposite direction then we can say
Part b)
now if bird travels in the same direction of wind then we will have
now we can find the time to go back
Part c)
Total time of round trip when wind is present
now when there is no wind total time is given by
So due to wind time will be more