Answer:
The error in tapping is ±0.02828 ft.
Explanation:
Given that,
Distance = 200 ft
Standard deviation = ±0.04 ft
Length = 100 ft
We need to calculate the number of observation
Using formula of number of observation

Put the value into the formula


We need to calculate the error in tapping
Using formula of error


Put the value into the formula


Hence, The error in tapping is ±0.02828 ft.
Answer:
Explanation: Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water (refractive index of 1.3; see Figure 2) and 200,000 kilometers per second in glass (refractive index of 1.5).
A pair of scissors .....................................
it means the number of molecules of oxygen
Explanation:
yeah
Answer:1688.393 joules
Explanation:
force along 15°(f) =380N
Φ=15°
Distance=4.6m
Time=9.5s
work=horizontal component force(F) x distance
Horizontal component force=f x cosΦ
Horizontal component of force=380 x cos15
Horizontal component of force =380x0.9659
Horizontal component of force=367.042N
Work=force horizontal component x distance
Work=367.042 x 4.6
Work=1688.393
Work=1688.393 joules