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GrogVix [38]
3 years ago
9

An electron has ___________​

Physics
2 answers:
katrin [286]3 years ago
5 0

Answer:

The charge of the electron is equivalent to the magnitude of the elementary charge (e) but bearing a negative sign. Since the value of the elementary charge is roughly 1.602 x 10^-19 coulombs (C), then the charge of the electron is -1.602 x 10^-19 C

Explanation:

Sauron [17]3 years ago
3 0

Answer:

An electron has a negative electric charge.

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At what speed, as a fraction of c , is a particle's total energy twice its rest energy
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E_0=m_0 c^2
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The total energy of a relativistic particle is
E=mc^2 =  \frac{m_0 c^2}{ \sqrt{1- \frac{v^2}{c^2} } }
where v is the speed of the particle.

We want the total energy of the particle to be twice its rest energy, so that
E=2E_0
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\frac{1}{ \sqrt{1- \frac{v^2}{c^2} } }=2
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Read 2 more answers
(b) If TH = 500°C, TC = 20°C, and Wcycle = 200 kJ, what are QH and QC, each in kJ?
BigorU [14]

Answer:

QC = 122 KJ

QH = 2.64 x 122 = 322 KJ

Explanation:

TH = 500 Degree C = 500 + 273 = 773 K

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Use the formula for the work done in a cycle

Wcycle = QH - QC

200 = QH - QC    ..... (1)

Usse

TH / TC = QH / QC

773 / 293 = QH / QC

QH / QC = 2.64

QH = 2.64 QC     Put it in equation (1)

200 = 2.64 QC - QC

QC = 122 KJ

So, QH = 2.64 x 122 = 322 KJ

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