-493.4138 that's what I got when you subtract 15.54 from 508.9538
Answer:
Yes, Roberto will have twice the kinetic energy
Explanation:
The equation for kinetic energy is Ke = 1/2(<em>m</em>)v^2
The variable <em>m</em> is not squared by anything, which means it is directly proportional to the equation. If you were to multiply <em>m</em> by 2, it would in turn multiply the entire equation by 2, getting you an outcome with twice as much kinetic energy.
Hello.
The answer is <span>remains the same.
</span>The total amount of energy stays the same because the 1st Law of Thermodynamics states that energy can neither be created nor destroyed, it can only change forms. <span>So the chemical energy is just being converted into heat and light.
</span>
Have a nice day
Answer:
The velocity of the cart when it reaches its greatest y coordinates is 10.135m/s
Explanation:Vx=0
0=6.8m/s+(6.2m/s^2)t
t=6.8/6.2
t= 1.1secs
Vy= 12m/s +(-1.7m/s^2 )t
Vy=12 +(-1.7×1.1)
Vy=12 -1.865)
Vy=10.135m/s