The uses of fossil fuel causes:
- <em>A</em><em>l</em><em>l</em><em> </em><em>o</em><em>f</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>a</em><em>b</em><em>o</em><em>v</em><em>e</em>
<u>F</u><u>o</u><u>s</u><u>s</u><u>i</u><u>l</u><u> </u><u>f</u><u>u</u><u>e</u><u>l</u><u>s</u><u> </u><u>b</u><u>u</u><u>r</u><u>n</u><u> </u><u>a</u><u>n</u><u>d</u><u> </u><u>i</u><u>n</u><u>c</u><u>r</u><u>e</u><u>a</u><u>s</u><u>e</u><u>s</u><u> </u><u>i</u><u>n</u><u> </u><u>g</u><u>l</u><u>o</u><u>b</u><u>a</u><u>l</u><u> </u><u>t</u><u>e</u><u>m</u><u>p</u><u>e</u><u>r</u><u>a</u><u>t</u><u>u</u><u>r</u><u>e</u><u> </u><u>b</u><u>e</u><u>c</u><u>a</u><u>u</u><u>s</u><u>e</u><u> </u><u>i</u><u>t</u><u> </u><u>e</u><u>m</u><u>i</u><u>t</u><u>s</u><u> </u><u>g</u><u>r</u><u>e</u><u>e</u><u>n</u><u>h</u><u>o</u><u>u</u><u>s</u><u>e</u><u> </u><u>g</u><u>a</u><u>s</u><u>e</u><u>s</u><u>.</u><u> </u><u>A</u><u>n</u><u>d</u><u> </u><u>t</u><u>h</u><u>e</u><u> </u><u>e</u><u>x</u><u>t</u><u>r</u><u>e</u><u>m</u><u>e</u><u> </u><u>c</u><u>l</u><u>i</u><u>m</u><u>a</u><u>t</u><u>e</u><u> </u><u>c</u><u>h</u><u>a</u><u>n</u><u>g</u><u>e</u><u> </u><u>d</u><u>e</u><u>c</u><u>r</u><u>e</u><u>a</u><u>s</u><u>e</u><u>s</u><u> </u><u>b</u><u>i</u><u>o</u><u>d</u><u>i</u><u>v</u><u>e</u><u>r</u><u>s</u><u>i</u><u>t</u><u>y</u><u> </u><u>and</u><u> </u><u>last</u><u> </u><u>but</u><u> </u><u>not</u><u> </u><u>the</u><u> </u><u>least</u><u> </u><u>it</u><u> </u><u>increases</u><u> </u><u>pollution</u><u> </u><u>because</u><u> </u><u>burning</u><u> </u><u>of</u><u> </u><u>fuels</u><u> </u><u>emit</u><u> </u><u>gases</u><u> </u><u>like</u><u> </u><u>Carbon-dioxide</u><u> </u><u>etc</u><u>.</u><u>.</u><u>.</u><u>~</u>
Answer:
6.54 × 10⁻⁵ Pa-s
Explanation:
Since the shear force, F = μAu/y where μ = viscosity of fluid between plates, A = area of plates, u = velocity of fluid = 0.6 m/s and y = separation of plates = 0.02 mm = 2 × 10⁻⁵ m
Since F = μAu/y
F/A = μu/y where F/A = force per unit area
Since we are given force per unit area, F/A = 1.962 N per unit area = 1.962 N/m²
So, μ = F/A ÷ u/y
substituting the values of the variables into the equation, we have
μ = F/A ÷ u/y
μ = 1.962 N/m² ÷ 0.6 m/s/2 × 10⁻⁵ m
μ = 1.962 N/m² ÷ 0.3 × 10⁵ /s
μ = 6.54 × 10⁻⁵ Ns/m²
μ = 6.54 × 10⁻⁵ Pa-s
Answer:
26.17 V
Explanation:
In a alternator , an ac voltage is produced whose magnitude of voltage varies sinusoidally.
Maximum voltage induced = nBAω
where n is no of turns , B is magnetic field , A is area of the coil and ω is angular velocity .
Rate of rotation n = 1000rpm = 1000/60 rps = 16.67 rps
angular velocity ω = 2π n = 2π x 16.67 = 104.68 rad / s
Putting all values in the given equation above
Max voltage = 250 x .1 x .01 x 104.68
= 26.17 V
Answer:
they are metals
Explanation:
they don't need to gain electrons they need to get rid of them