What is the power output of an electric motor that lifts a 2.0 kilogram block 15 meters vertically in 6.0 seconds

Potential energy is the energy by virtue of object's height & kinetic energy by virtue of it's motion!

Hope this helps!

We are given that: <span>
Speed of sound in air = 343.06 m/s and frequency f = 349.23Hz. 
Calculating for wavelength using the formula:</span>

Wavelength λ = c / f<span>

<span>wavelength λ = 343.06 / 349.23 = 0.98233 m = 98.233 cm</span></span>

Answer:

So very hard

Thank you

Sorry

first one is negative

second is none

third is posotive

last one is negative

left to right order

<span>Most objects move at a constant speed because of friction and acceleration. The constant speed keeps them in place, and keeps a balance. </span>