Answer:
electromagnetic waves= LIGHT, TRAVELS IN A VACUUM, VIBRATIONS IN MAGNETIC FIELD
matter/mechanical= REQUIRES A MEDIUM, SOUND, COMPRESSIONS,
both= TRANSFERS ENERGY, AMPLITUDE, FREQUENCY, WAVELENGTH,
Explanation:
electromagnetic waves don't need particles/atoms to travel through whilst matter/mechanical waves do.
It would most definitely not be a hill or a cliff. I believe it would be a plain.
Answer:
i speak english not spanigh sorry :(
Explanation:
The power developed is 500 W ( to the nearest Watt)
Power(P) is the rate at which work is done. Work done (W) is the product of the force applied on the object and the displacement (s) made by the point of application of the force.
Therefore,
Substitute the given values of force , displacement and time
Thus the Power can be rounded off to the nearest value of 500 W