Acceleration will be 9.81 if it goes downwards. If it accelerates upwards it will be -9.81m/s^2
Answer:
180.4 m
Explanation:
The package in relation to the point where it was released falls a certain distance that is calculated by applying the horizontal motion formulas , as the horizontal speed of the plane and the height above the ground are known, the time that It takes the package to reach its destination and then the horizontal distance (x) is calculated from where it was dropped, as follows:
h = 100 m
x =?
Height formula h:
Time t is cleared:
t = 4.51 sec
Horizontal distance formula x:
x = 40 m / sec x 4.51 sec
x = 180.4 m
Answer: 183.8Hz
Explanation:
Given that,
wavelength of sound (λ) = 1.85 m
frequency of the sound (F) = ?
Recall that the speed of sound (V) in air is a constant with a value of 340m/s
So, apply the formula
V = F λ
340 m/s = F x 1.85 m
F = 340m/s / 1.85m
F = 183.8Hz
Thus, the frequency of the sound that is
generated is 183.8 hertz
C) No valid conclusion is suggested by these observations.
Explanation:
From the experiment, no valid conclusion can be drawn from the observations.
The tests are simply based on heat loss by a material.
- In conduction, heat is lost by contact between materials in which heat flows from one to another.
- Convection is a form of heat loss in which heat flows by density in fluids
- The test carried out does not provide proof and comparison between heat loss by conduction and convection.
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