Answer:
Electrolytic manganese dioxide (EMD) is used in zinc-carbon batteries together with zinc chloride and ammonium chloride. EMD is commonly used in zinc manganese dioxide rechargeable alkaline (Zn RAM) cells also. For these applications, purity is extremely important.
Explanation:
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Answer:
<em>The energy of an individual photon that comes out of the laser pointer is 1.91 eV</em>
Explanation:
The energy of a photon can be obtained using the expression below
E = hc/λ
where E is the energy;
h is the Planck's constant = 6.626 x 10-34 Js;
c is the speed of light = 3.00 x m/s (speed of light);
λ is the wavelength = 650 nm =650 x m.
E = (6.626 x 10-34 Js) x (3.00 x m/s) /650 x m
E = 3.058 x J
1 joule = 6.242 x eV
3.058 x J = 3.058 x J x 6.242 x eV = 1.91 eV
Therefore the energy of an individual photon that comes out of the laser pointer is 1.91 eV
Answer:
<em>An object is said to be rated </em><em>1 Watt </em><em>when it performs a work worth </em><em>1 Joule </em><em>in </em><em>1 second.</em>
Explanation:
<em>We know that power is rate of doing work or Work done in a given period of time.</em>
<em>Power is simply given by the formula:</em>
<em>Power=(Work)/(Time)</em>
<em>The SI unit of Power, Work and Time are Watts, Joules and Seconds respectively.</em>
<em>Hence, 1 Watt=1 Joule/ 1 Second</em>
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Answer:
Increasing the resistance
Explanation:
Answer:
The work remains the same
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