Height of the rocket will be <span>h(t)=−<span>12</span>g<span>t2</span>+<span>v0</span>tsinθ+<span>h0</span></span> where
<span>g=9.8<span> m/s2</span></span>
<span><span>v0</span>=86 m/s</span>
<span><span>h0</span>=0 m</span>
<span>θ= angle formed with the vertical
</span>
That's a parabola. You'll solve that for <span>h(<span>tf</span>)=0</span> to find the time of flight.
The horizontal component of the rocket's velocity will be <span><span>vx</span>=<span>v0</span>cosθ</span>. You know that <span>x=<span>vx</span><span>tf</span>=104 m</span> where <span>tf</span> is the time of flight. You can use that relationship to write an expression for <span>tf</span> in terms of <span>v0</span> and θ. Substitute that into the first equation and solve for θ.
Once you've got the parabola figured out, you can easily find the maximum height by finding the vertex, and you've already found the duration of the flight.
According to Ohm's law for a portion of the circuit we have:
U=RI=>I=U/R=9/4=2.25 A
Answer:
Explanation:
Average rate = gallons / minutes
If 12.5gallons in 5mins
Xgallons in 1mins
12.5/5 = 2.5gallons per minute
4 because its not yet moving. It has kinetic energy, it just hasn’t been used yet.
