Answer:
The number of grains of sand on all the beaches on Earth
Explanation:
if we assume grain of sand has an average size , then the number of grains of sand on all the beaches on Earth is roughly 
The total number of stars in the observable universe is roughly equivalent to 1 billion trillion. which is roughly equal to the number of grains of sand on all the beaches on Earth.
It's a graph of a vehicle's fuel efficiency ... what operating speeds make it use more or less gas to go 1 mile.
Answer:
They are equal
Explanation:
Multiply the mass by the velocity.
Verrrrry interesting question !
Force= (mass) x (acceleration)
(49.5kg) x (1.3 m/s²) =
<u> Net</u> force on the box is <u>64.25 newtons upward</u>.
That's the <u>net</u> force. It's the combination of the tension in the rope
pulling the box up, and the force of gravity pulling the box down.
Force of gravity = "weight" = (mass) x (gravity) =
(49.5) x (9.8) = <u>485.1 newtons downward</u>
The tension in the rope must be enough to balance the downward force
of gravity PLUS provide another 64.25 newtons upward.
<em>Tension =</em> (485.1) + (64.25) = <em>549.35 newtons</em>
The correct option is this: KINETIC ENERGY JUST BEFORE REACHING THE GROUND IS LESS THAN THE GRAVITATIONAL POTENTIAL ENERGY AT THE TOP OF THE BUILDING.
When the object was on the top of the building, it has potential energy. This potential energy was converted to kinetic energy when the object started falling. In the process of falling, friction was present, which means that some of the energy will be converted to heat as a result of the friction. Therefore the kinetic energy of the falling object will be less than its potential energy, because some of the energy has been spent on friction.<span />
