There are 3 types of electromagnetic radiation given off by the sun. The first being visible light. Visible light radiation is 99% of the sun's rays. The remaining 1% is made up of UV radiation and Infrared. UV radiation is what is responsible for sunburns.
Answer:
hmax=81ft
Explanation:
Maximum height of the object is the highest vertical position along its trajectory.
The vertical velocity is equal to 0 (Vy = 0)
we isolate th (needed to reach the maximum height hmax)
The formula describing vertical distance is:
So, given y = hmax and t = th, we can join those two equations together:
if we launch a projectile from some initial height h all you need to do is add this initial elevation
If you look at the picture you will see how, but the answer is 0.5 Hz.
Answer:
The current of 10 mA is flowing through the 250-Ω resistor.
Explanation:
The values of four resistors 150 ohms, 250 ohms, 350 ohms and 450 ohms are connected in series with a 12 V battery. The equivalent resistance in case of series combination is given by :
In series combination, the current flowing throughout the resistors is same. It is given by using Ohm's law as :
or
So, the current of 10 mA is flowing through the 250-Ω resistor. Hence, this is the required solution.