(a) The net force upward force of the helicopter is -35,880 N.
(b) The weight of the helicopter is 45,080 N.
(c) The lift-force exerted by the air on the propellers is 9,200 N.
The given parameters:
- <em>mass of the helicopter, m = 4600 kg</em>
- <em>acceleration of the helicopter, a = 2 m/s²</em>
The net force upward force of the helicopter is calculated as follows;
The weight of the helicopter is calculated as follows;
The lift-force exerted by the air on the propellers is calculated as follows;
Learn more about Newton's 2nd Law here: brainly.com/question/3999427
ANSWER:
The easiest way to get a fairly accurate measure of your water flow rate is to time yourself filling up a bucket. So for example if you fill up a 10 litre bucket in 1.5 minutes, then your flow rate will be: 10/1.5 = 6.66 Litres per minute.
Number 1 is D number 2 is C
Answer:
16.6 ms or 0.0166 s
Explanation:
If Q is the final charge, Q' is the initial charge, C the capacitance ,R is the resistance , t the time taken and τ the time constant,
[tex]Q = Q'( 1- e^{-t\div \tau })
τ = R C = (1.20×10³) (20×10⁻⁶) = 0.024 s
15 = 30 ( 1- e^{-t\div \ 0.024 })
( 1- e^{-t\div \ 0.024 }) = 15 ÷ 30
⇒ - e^{-t\div \ 0.024 }) = 0.5 -1
⇒ e^{-t\div \ 0.024 }) = 0.5
Taking logarithm to the base e on both sides of this equation,
⇒ t = 0.0166 seconds = 16.6 milli seconds