Answer:
Technician A is right.
Explanation:
Given that,
Voltage of circuit, V = 12 volt
Current in the circuit, I = 3 A
Technician A says the electric power in this circuit is 36 watts. Technician B says the electric power in this circuit is 4 watts. We need to say that which technician is correct.
The power of any circuit is given by :
P = 36 watts
So, technician A is right. Hence, this is the required solution.
Answer:
electromagnetic.
Explanation:
Electrons can jump from one energy level to another.
-- radio and TV
-- GPS
-- garage-door openers
-- cellular phones with mobile data
-- microwave ovens
-- "ham" radio
-- RADAR
-- tanning bed
-- CB radio
-- infrared lamp to keep food warm in a restaurant
-- CAT scan
-- MRI
-- dental X-ray
-- street lights
-- Air Traffic Control
-- CD and DVD players (laser)
-- cameras
Oh. I just read the question again, and I noticed that
you want explanations too. There are 17 examples
on my list, and that would take so much explaining
that I'm going to try and get away without it. I just
hope that the list itself is worth 5 points.
FULL ANSWER<span>There are two types of weathering that affect the earth's surface: mechanical and chemical. Mechanical weathering is sometimes called physical weathering and often occurs because of temperature changes on the surface. For example, if enough water seeps into a crack and freezes, it expands. This causes it to work as a wedge and it slowly splits open nearby rocks. As the ice melts, the resulting water carries away bits of the broken rock.C<span>hemical weathering changes the composition of the materials that make up rocks and soil. A good example of this is what happens when carbon dioxide is abundant in an area. High carbon dioxide combined with water produces an acid called carbonic acid. In time, carbonic acid dissolves rock.</span><span>Although both types of weathering are natural processes, humans and animals often unwittingly speed things up. Animals, such as dogs trampling across rocks and soil, speed up the process and air pollution caused by people increase the rate of weathering.</span></span>
