Answer:
q = 0.036 C
Explanation:
Given that,
Current passes through a defibrillator, I = 18 A
Time, t = 2 ms
We need to find the charge moved during this time. We know that,
Electric current = charge/time
Put all the values,
So, 0.036 C of charge moves during this time.
Doppler shift due to random motion of galaxies ,an aging of light as gravity weakens with time ,the difference in temperature and star formation in old and new galaxies
The ancient Greeks, in a theory that was suggested around 450 BC, believed that everything was from from four elements. These elements included earth, water, air and fire. Later, Aristotle supported this theory.
Therefore, the first option is correct.
There is no kinetic energy.
Kinetic energy = 1/2(m)v^2
There is no velocity; therefore, there is no kinetic energy.
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>
