Kinetic energy is dependent on Its position
Answer:
Explanation:
The frequency of an electromagnetic wave is given by:
where
is the speed of light
is the wavelength
Red light has a wavelength of
So by using the formula above we can calculate its frequency:
Answer:
Explanation:
Work is the product of force and displacement. Work is positive if force and displacement moves in the same direction. Work is negative if force and displacement moves in opposite direction. Take for example, a load is to move from point A to point B in the forward direction. if you apply force on the load from point A to B work done on the load is positive. If it happens that the force you apply is to the opposite direction, the work done will be negative.
Answer:
Explanation:
The mechanical Energy associated with a body, is the sum of the potential(Energy due to its position) energy and the kinetic energy(energy due to its motion).Hence ewe can write as
The expression for the potential Energy is
while the expression for the Kinetic Energy is
since the Height,h=12m,
mass,m=1200kg,
acceleration,g =9.8
and velocity,v=4.8m/s
we can compute the Mechanical energy in kJ as
The correct answer is elastic potential energy.
I hoped this helped!