Explanation:
you made an error while putting the unit of velocity
acceleration = change in vel in time
a = (∆v/t)
the initial vel (u) =0m/s
the final vel (v) = 5,500m/s
time (t) = 8min + 30sec = 480 + 30
510s
a = (5,500 - 0)/510
5,500/510
a = 10.78m/s²
The aero plane would only move forward when the thrust force exceeds the drag force.
<h3>What is a projectile?</h3>
The term projectile has to do with a motion that follows a curved trajectory through air. The motion of an airplane that is dropping relief packages to flood victims is a good example of a projectile.
Excluding the horizontal and vertical forces, there are four important forces that act on the airplane;
- Drag force
- Gravity
- Lift
- Drag
- Thrust
The aero plane would only move forward when the thrust force exceeds the drag force.
Learn more about balance of forces:brainly.com/question/19127263
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Omitting the 1 will not change the value of the number, but will change the units at the end of the problem
Explanation:
a magnet should look something like this, so the south pole will be the side that is "receiving" the arrows from the north pole
Answer:
The frequency increases with a shorter horn <em>(Option B)</em>.
Explanation:
The length of the horn determines the distance along which the wave travels; simply called the wavelength. Therefore, a short horn tube will produce a short wavelength and vice versa.
Sound waves have various characteristics that define pitches in musical instruments and these characteristics are interdependent on each other.
in this case, the frequency and the frequency and the wavelength are related.
The relationship between the wavelength and its frequency is given as:
<em> </em><em>c = f λ </em><em> </em>
<em>where 'c' is the speed of sound through the instrument; 'f ' is the frequency and 'λ' is the wavelength.</em>
Let's assume that the speed at which the musician blows air into the mouthpiece remains constant, an increase in wavelength will cause a decrease in frequency. Conversely, as the tube of the horn becomes shorter the frequency increases.