Answer:
a. 45 N. / b. 0.08 m/s^2. / c. 102 N
F = ma
F = 15(3)
F = 45 newtons
F/m = a
20/250 = a
0.08 m/s^2 = a
R = ma
R =1.5(68)
102 N
Answer:

Explanation:
The acceleration of the aircraft can be found by using Newton's second law:
F = ma
where
F is the net force on the aircraft
m is the mass
a is the acceleration
For the aircraft in this problem,
F = 1184 N
m = 350 kg
Solving the formula for the acceleration, we find

Explanation:
Noise is sound with a continuous structure. Music is composed of sounds with a fundamental frequency and overtones. Noise is composed of sounds with frequencies that range continuously in value from as low as you can hear to as high as you can hear — not necessarily at equal intensity, however.