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likoan [24]
3 years ago
13

B. how does the separation between galaxies compare to the separation between stars? based on your answer, discuss the likelihoo

d of galactic collisions in comparison to the likelihood of stellar collisions.
Physics
1 answer:
leva [86]3 years ago
4 0
Galaxies are much further apart than stars. This is the reason why they are less likely to collide and the likelihood of galactic collision is much smaller  than the likelihood of stellar collision. Example for galaxy collision is the collision of the Milky Way galaxy with Andromeda. It is estimated that the collision will be <span>in about 4.5 billion years. </span> 
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Two containers hold an ideal gas at the same temperature and pressure. Both containers hold the same type of gas, but container
sergeinik [125]

Answer:

B. The same as that for container A

Explanation:

To calculate the average Kinetic Energy per molecule,

K_{avg} = 3/2 K_{B} T

Where K_{avg} is the average kinetic energy per molecule and K_{B} is the Boltzmann constant

From the above equation it is seen that K_{avg} only depends on the temperature of the gas

And since the temperatures of both gases are equal, their average kinetic energy per molecule is the same

7 0
3 years ago
The most important barriers to diffusion today are physical features of Earth's surface.
nikdorinn [45]

Answer:

False

Explanation:

Physical features of earth's surface like mountains, deserts and oceans are not the barriers in today's modern world. Technological improvements in the transportation and communication has removed these barriers. So they are not barriers anymore.

7 0
3 years ago
Si pudieras viajar a la Luna:
Nostrana [21]

Answer:

i) Distancia, ii) La cinta métrica es impracticable.

Explanation:

i) El concepto físico que se construye únicamente del punto de salida y el punto de llegada a la Luna es el concepto de desplazamiento, definido como la distancia en línea recta de un punto en el espacio con respecto a un punto de referencia (la Tierra en este caso).

La distancia puede involucrar trayectorias curvilíneas entre los puntos mencionados.

ii) Por último, el uso de una cinta métrica es impracticable debido a la cantidad de material a utilizar y los efectos gravitacionales, electromagnéticos y mecánicos que inducen a una deflexión o una ruptura de esa cinta debido a la magnitud de la distancia entre las superficies del planeta y el satélite, respectivamente.

En este caso, es mejor utilizar la medición con tecnología láser, basadas en el fenómeno del electromagnetismo.

4 0
3 years ago
Two cars are moving with velocities 70km/hr and 50km/hr in east and west direction respectively.
viva [34]

Answer:

70 + 50 = 120 km/hr

Explanation:

The driver of either car would see the other car approaching or departing at 120 kph

5 0
3 years ago
0.002 written in scientific notation
Oliga [24]

Answer:0,002 = 2 x 10⁻³

Explanation:

0,002 = 2 / 1000 = 2 / 10³ = 2 x 10⁻³

3 0
3 years ago
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