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3 years ago

How many seconds would it take a radio wave to travel from the planet Venus to

Physics

1 answer:

xz_007 [3.2K]3 years ago

4 0

Answer:

La distancia media de Venus al Sol es de 108.159.260,51 Km

La distancia media de la Tierra al Sol: 149.597.870,691 Km

La diferencia entre una y otra distancia media te darÃ¡ el promedio de distancia de la Tierra a Venus: 41.438.618,181 Km.

Siendo la velocidad de la luz: 299.792,458 Km / seg

Divides: 41.438.618,181 Km / 299.792,458 Km / seg = 138,22433 segundos

138,22433 seg / 60 seg = 2,30374 minutos

Este tiempo es el que tarda la onda de radio en viajar del planeta Venus a la Tierra.

La velocidad de la onda de radio se conviene en considerarla igual al de la velocidad de la Luz en el vacÃo.

Explanation:

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two 200 pound lead balls are separated by a distance 1m. both balls have the same positive charge q. what charge will produce an

Anna [14]

Answer:

The charge is $q = 3.14 *10^{-4} \ C$

Explanation:

From the question we are told that

The mass of each ball is $m = 200 \ lb = \frac{200}{2.205} = 90.70 \ kg$

The distance of separation is $d = 1 \ m$

Generally the weight of the each ball is mathematically represented as

$W = m * g$

where g is the acceleration due to gravity with a value $g = 9.8 m/s^2$

substituting values

$W = 90.70 * 9.8$

$W = 889 \ N$

Generally the electrostatic force between this balls is mathematically represented as

$F_e = \frac{k * q_1* q_2 }{d^2}$

given that the the charges are equal we have

$q_1= q_2 = q$

$F_e = \frac{k * q^2 }{d^2}$

Now from the question we are told to find the charge when the weight of one ball is equal to the electrostatic force

So we have

$889 = \frac{9*10^9 * q^2}{1^2}$

=> $q = 3.14 *10^{-4} \ C$

5 0

3 years ago

A machine had a mechanical advantage of 4.5 what force is out out by the machine if the force applied to the machine is 800n

mrs_skeptik [129]

<h3><u>Answer</u>;</h3>

D. 3600 N

<h3><u>Explanation</u>;</h3>

Mechanical advantage is the ratio of force output from a machine divided by the force input into the machine.

That is;

Mechanical advantage = Output Force/Input Force

In this case;

Input force = 800 N

Thus; Output force = M. A × input force

= 4.5 × 800

= 3600 N

Therefore; the output force by the machine is 3600 N

5 0

3 years ago

A circular coil that has =130 turns and a radius of =11.5 cm lies in a magnetic field that has a magnitude of 0=0.0725 T directe

Levart [38]

I think is the half of 130

7 0

3 years ago

Oil can be used to reduce friction.

WINSTONCH [101]

Answer:

If you're asking if this is true or false, the answer is true.

Explanation:

7 0

3 years ago

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The sound waves used for sonar are _____.

Stella [2.4K]

Acoustic Energy

Sonar uses the echo principle by sending out sound waves underwater or through the human body to locate objects

4 0

4 years ago

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