Answer: 78400 J
Explanation:
The gravitational potential energy is the energy that a body or object possesses, due to its position in a gravitational field. That is why this energy depends on the relative height of an object with respect to some point of reference and associated with the gravitational force.
In the case of the Earth, in which the gravitational field is considered constant, the value of the gravitational potential energy 
will be:
Where:
is the mass of the skydiver
the acceleration due gravity
the height of the skydiver
Hence:
Answer:
0.21632 m
Explanation:
f = Frequency = 260 Hz
= Wavelength = 0.6 m
v = Velocity = 
T = Tension = 225 N
m = Mass of string = 
L = Length of string
Velocity of wave is given by
The length of the string is 0.21632 m
No pollution is in the air, dripping a gum wrapper on the floor is littering
The amount of electric current in the coil and the number of turns of wire
in the coil directly determine the strength of the electromagnet.
But the voltage of the battery determines the amount of current through
the wire, so the battery voltage is also indirectly involved.
A mechanical wave such as sound needs a medium to travel through. This is why they say that in space, no one can hear you scream (because space is a vacuum and no medium exists). On the contrary, light can exist in wave or particle form. This is why we have the ability to see beyond the realms of the Earth.
