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3 years ago

10

In which scenario will the two objects have the greatest gravitational force

1 answer:

Alekssandra [29.7K]3 years ago

5 0

Answer:

It is C

Explanation:

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Ejemplo de un modelo verbal usado en química

Vinil7 [7]

Answer:

Cuando hablamos de comunicación no verbal nos referimos a todas aquellas formas de comunicación que no emplean la lengua como vehículo y sistema para expresarse. Es decir, todas aquellas vías de transmisión de un mensaje que no requieren de las palabras ni del lenguaje verbal.

La comunicación verbal es aquella en la que se utilizan las palabras. El mensaje que se transmite se articula y expresa a través de la comunicación oral, o escrita. La comunicación verbal, surge de la necesidad de comunicarse

Explanation:

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3 years ago

A. Una onda armónica que se propaga por un medio unidimensional tiene una frecuencia de 500Hz y una velocidad de propagación de

Natasha2012 [34]

Answer:

0.117 m

Explanation:

First of all, we can find the wavelength of the wave in the problem, by using the wave equation:

$v=f\lambda$

where:

v = 350 m/s is the speed of the wave

f = 500 Hz is the frequency of the wave

$\lambda$ is the wavelength

Solving for $\lambda$ ,

$\lambda=\frac{v}{f}=\frac{350}{500}=0.7 m$

This means that the distance between two consecutive points of the wave having a difference of phase of

$\phi=2\pi$

is 0.7 m.

Here we want to find the distance between two points that have a difference of phase of

$\phi'=\frac{\pi}{3}$

So, we can set up the following rule of three:

$\frac{d}{\phi}=\frac{d'}{\phi'}$

where d' is the distance we are looking for. Solving for d',

$d'=d\frac{\phi'}{\phi}=(0.7)\frac{\pi/3}{2\pi}=\frac{1}{6}(0.7)=0.117 m$

7 0

3 years ago

A rocket moves upward from rest with an acceleration of 40 m/s2 for 5 seconds. It then runs out of fuel and continues to move up

Snezhnost [94]

Answer:

Maximum height of rocket = 2538.74 m

Explanation:

We have equation of motion s = ut + 0.5 at²

For first 5 seconds

s = 0 x 5 + 0.5 x 40 x 5² = 500 m

Now let us find out time after 5 seconds rocket move upward.

We have the equation of motion v = u + at

After 5 seconds velocity of rocket

v = 0 + 40 x 5 = 200 m/s

After 5 seconds the velocity reduces 9.8m/s per second due to gravity.

Time of flying after 5 seconds

$t=\frac{200}{9.81}=20.38s$

Distance traveled in this 20.38 s

s = 200 x 20.38 - 0.5 x 9.81 x 20.38² = 2038.74 m

Maximum height of rocket = 500 +2038.74 = 2538.74 m

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3 years ago

The strength of a magnetic field around a wire carrying a current of 20 A is 0.004 T. What is the strength of the

Alex777 [14]

Answer:

D. 0.008 T

Explanation:

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3 years ago

3.How can you find the velocity of the object just before impact without directly measuring it?

e-lub [12.9K]

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4 years ago