3 years ago

At the Sun Dagger in New Mexico, a dagger-shaped beam of sunlight pierces a spiral

1 answer:

7 0

Answer:

Explanation:

At noon on the summer solstice. The sun dagger was used to observe astrological readings in the ancient time

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8_murik_8 [283]

Answer:

we know a = F/ M

Explanation:

4 0

3 years ago

DedPeter [7]

Answer:

The electric field is 9.3 x 10^12 N/C and the direction is away from the charge.

Explanation:

charge, Q = 12.5 C

distance, d = 11 cm = 0.11 m

Let the electric field is E.

$E =\frac{K Q}{d^2}\\\\E = \frac{9\times 10^9\times 12.5}{0.11\times 0.11}\\\\E = 9.3\times 10^{12} N/C$

The direction of electric filed is away from the charge.

3 0

3 years ago

MatroZZZ [7]

Answer:

The advantage of the SI unit over CGS unit are:

S.I has broader base. It has seven base units and two supplementary units.
S.I is metric.
S.I is coherent.
S.I is rational, i.e. it gives one unit for one physical quantity .e g. for energy of any type i.e, mechanical or heat or electrical.There is only one unit Joule(J) but in M.K.S system unit for mechanical energy is joule.

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