Answer:
The absolute pressure of air inside the tank is 164.7 psi.
Explanation:
Given that,
Atmospheric pressure = 14.7 Psi
Gauge pressure = 150 psi
We need to calculate the absolute pressure of air inside the tank
Using formula of absolute pressure
Where, 
= gauge pressure
=atmospheric pressure
Put the value into the formula
Hence, The absolute pressure of air inside the tank is 164.7 psi.
Answer:
The ball will continue to move at a constant speed forever until another force stops it.
Explanation:
Newton's first law of motion can be seen as a law of inertia. It explains that an object at rest or in a state of uniform motion will remain in that state unless it is acted upon by an external force.
Following the above, when the ball is thrown into space, the ball will continue to move with the velocity with which it was thrown until it comes in contact with another object that stops it. If this does not happen, it will continue to drift forever at that velocity.
Initial angular velocity wi = 0
final angular velocity wf = 2.9 x 10⁴ rev/min
wf = 2.9 x 10⁴ (2*3.14 rad)/(60 sec)
wf = 3.035 x 10³ rad/sec
time t = 3 sec
angular acceleration α
wf = wi + αt
3.035 x 10³ = 0 + α(3)
α = 1012 rad/s²
(b) angle covered is θ
θ = wi*t + (1/2)αt²
θ = 0*3 + (1/2)(1012)(3²)
θ = 4554 rad
