C. The object is accelerating as the direction of the object is changing
Answer:
<em>SI Units</em>
Meter
Kilogram
Kelvin
<em>US Customary Units and English Units</em>
Gallon
Mile
Pound
Degrees Fahrenheit
Explanation:
The SI units or International System of Units are the widely used metrics of measuring a physical quantity. It has specific abbreviations.
The US customary units is a measurement system where it is widely used in the united states. This system of unit also has abbreviations.
There are also conversion scales that are used to convert a unit from one metric system to the other.
For example, the conversion of mile to SI unit is given by the formula
1 mile = 1609.4 meters
Similarly,
1 pound = 0.453592 Kg
Statements A, B, and C are true.
Statement <em> D is false</em>.
The solution would be like this for this specific problem:
Given:
diffraction grating
slits = 900 slits per centimeter
interference pattern that
is observed on a screen from the grating = 2.38m
maxima for two different
wavelengths = 3.40mm
slit separation .. d =
1/900cm = 1.11^-3cm = 1.111^-5 m <span>
Whenas n = 1, maxima (grating equation) sinθ = λ/d
Grant distance of each maxima from centre = y ..
<span>As sinθ ≈ y/D y/D =
λ/d λ = yd / D </span>
∆λ = (λ2 - λ1) = y2.d/D - y1.d/D
∆λ = (d/D) [y2 -y1]
<span>∆λ = 1.111^-5m x [3.40^-3m] / 2.38m .. .. ►∆λ = 1.587^-8 m</span></span>
