The potential energy of the object is 78.4 J
Explanation:
The gravitational potential energy (GPE) of an object is the energy possessed by the object due to its position in a gravitational field.
For an object near the Earth's surface, the GPE is given by:
where
m is the mass of the object
is the acceleration of gravity near the Earth's surface
h is the height of the object relative to the surface
For the object in this problem,
m = 2 kg
h = 4 m
Substituting, we find its GPE:
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Answer: one of the answers should be increase the number of turns of wire on the nail
Explanation: the more you wrap the Wire on a nail, its electromagnet would increase
If you only asked me what does an animal need to survive in my house,
I couldn't answer that one either, until you tell me what animal you're
talking about.
Now you want to talk about aliens, of which #1): We have no evidence
that they even exist, and #2): If they do exist,we have no idea what kind
of a planet they live on, and #3): We have no idea what the environment
might be like on that planet.
So, to answer your question, I would say this:
In order to survive on Jupiter, an alien species would need exactly the
same things that Earthly humans would need there ... They would need
some set of materials and devices that could be used to duplicate the
conditions of atmosphere, temperature, pressure, gravitation, and
radiation in which their species evolved and to which it adapted, in
whatever place they came from.
Explanation:
The number of images formed by two adjacent plane mirrors depends on the angle between the mirror.
