Answer: 75 degrees.
180-75= 105 degrees. 105 is the angle of number 5.
Because the two lines are parallel 4 =75 and 3 is 105.
Density=mass/volume, 9.86=mass/150, so mass=150×9.86=1479g=1.479kg.
Answer:
7.68 s
Step-by-step explanation:
The vertical motion formula is:
<u>Where:</u>
h(t): is the final height = 0
h(0): is the height of the cliff = 104 foot
v(0): is the initial velocity = 110 ft/s
g: is the gravity = 9.8 m/s² = 32.15 ft/s²
Hence, from the vertical motion formula we can find the time that will take the rocket to hit the ground:

We have two solutions:
t₁= -0.84 s
t₂ = 7.68 s
We will take the positive value, thus the time that will take the rocket to hit the ground is 7.68 s.
I hope it helps you!
C = 2*pi*r, so 28pi = 2*pi*r. Divide both sides by 2 to get 14*pi = pi*r, then divide by pi to get 14 = r, or r = 14.
:)