It's just speed, distance, time
Speed = D/T
Distance = SxT
Time = D/S
Therefore Speed (or velocity) = D/T = 55/1.4 = 39 MPH rounded up - FOR JOURNEY 1
Velocity = D/T = 55/2 = 22.5 MPH - FOR JOURNEY 2
To work out his average speed (velocity) you add these together and divide by 2
Average = (39+22.5)/2
Answer = 30.75MPH or 31MPH rounded up
Hope this helps :) + If I'm wrong I'm sorry lol
Answer:Because of their strong winds, jet streams play an important role in the economy of the aviation industry. When an airplane flies into a jet stream for any period of time, extra fuel must be used. Not only is the fuel expensive, but it takes up room where either passengers or cargo could be. Just the opposite occurs when an airplane flies with a jet stream at its back. Fuel and money are saved because the wind pushes the plane along.
Explanation:
Answer:
you will get charge
Explanation:
Most shocks happen because you and the car have picked up opposite charges. Leaving your seat separates these charges, creating the potential for a static shock. Touching the metal of the car as you get out lets the charge balance out by flowing harmlessly through your hand
The final speed when the mass is 40,000kg height is 2.5km and 500,000N of force is 176.8 m / s
According to Newton's second law of motion,
F = m a
F = Force
m = Mass
a = Acceleration
m = 40000 kg
F = 500000 N
a = F / m
a = 500000 / 40000
a = 12.5 m / s²
a = v / t
v = d / t
v = Velocity
t = Time
d = Distance
d = 2.5 km = 2500 m
a = d / t²
12.5 = 2500 / t²
t² = 200
t = 14.14 s
v = 2500 / 14.14
v = 176.8 m / s
Therefore, the final speed is 176.8 m / s
To know more about Newton's second law of motion
brainly.com/question/13447525
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Complete Question
The complete question is shown on the first uploaded image
Answer:
The slit width
Explanation:
Assuming the unit on the graph is cm
Given that the slit to screen distance is D = 200 cm = 20 000 m
The wavelength = 633 nm =
slit width a = ?
The width of the spot that is the width of the peak from the graph is
W = 1.6 × 2 = 3.2 cm
Where the 1.6 is the distance from 0 to the right end point of the peak
The change in y i.e has a formula
= Ltanθ
An the width of the spot is 2 ×
W = 2Ltanθ
Applying this formula qsinθ = m
where m = 1 because we a focused on the first zeros ,using small angle approximation we have y
Substituting this into W = 2ltanθ
Using small angle approximation
W = 2ltanθ = 2Lθ
and this is the slit width