Why are all galaxies moving away from us?

1 answer:

7 0

Galaxy million of star and planet. gravitional wave field all the universe some planet explosive itself moving other places . Black holes Mass gravity field

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A series RL circuit with L = 3.00 H and a series RC circuit with C = 3.00 F have equal time constants. If the two circuits conta

Tems11 [23]

Answer:

(a) R = 1Ω

(b) τ = 3

Explanation:

The time constants of the given circuits are as follows

$\tau_{RL} = \frac{L}{R}\\\tau_{RC} = RC$

If the two circuits have equal time constants, then

$\frac{L}{R} = RC\\R^2 = \frac{L}{C} = \frac{3}{3} = 1\\R = 1\Omega$

Therefore, the time constant in any of the circuits is

$\tau = RC = 3$

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It's acceleration is 9.8 m/s^2 in the negative y direction, from the time it leaves the hand until it hits the floor.

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Calculate the number of vacancies per cubic meter at 1000°C for a metal that has an energy for vacancy formation of 1.22 eV/atom

Daniel [21]

To solve this problem, it is necessary to take into account the concepts of the number of vacations N_v at a given temperature as well as the calculation of the number of atom sites per cubic meter.

For definition the number of atomic sites per cubic meter is given as,

$N = \frac{N_A\rho}{A}$