0 = -16t^2 + 100 subtract 100 from each side
-100 = -16t^2 divide both sides by -16
100/16 = t^2 take the positive root of both sides
10/4 = t = 2.5 seconds
Hope this helps :)
Answer: 96.138 J
Explanation:
Use equation for potential gravitational energy : Ep=mGh
Ep1=mGh1
Ep2=mGh2
-------------
Ep1= 3.5*9.81*1.2
Ep1=41.202 J
Ep2=3.5*9.81*4
Ep2=137.34 J
Ep=Ep2-Ep1
Ep=137.34-41.202
Ep= 96.138 J
the answer to the question is false
Answer:
In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. ... For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes.
D. definition of perihelion: the point in the orbit of a planet, asteroid, or comet at which it is closest to the sun. (the sun is an example of the star)