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3 years ago

7

What is the name of the first satellite sent into space

1 answer:

irina1246 [14]3 years ago

6 0

On October 4, 1957, Soviet satellite Sputnik, the world's first artificial satellite, blast into space and transmitted information via radio signals to Soviet scientists for three weeks. Sputnik II was launched in November 1957 with a a dog called Laika aboard.

I think hope you find this helpful.

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Select the correct statement to describe when a sample of liquid water vaporizers into water vapor

AnnyKZ [126]

From what I know; When a sample of liquid water vaporizes into water vapor, the electrons in the water sped up due to heat.

4 0

3 years ago

What is formed when the rock making up a tectonic plate breaks and moves Select one of the options below as your answer:

dem82 [27]

A. a fault hopes this helps you guys

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3 years ago

An office window has dimensions 3.1 m by 2.1 m. As a result of the passage of a storm, the outside air pressure drops to 0.954 a

Virty [35]

Answer:

Net forces which pushes the window is 30342.78 N.

Explanation:

Given:

Dimension of the office window.

Length of the window = $3.1$ m

Width of the window = $2.1$ m

Area of the window = $(3.1\times 2.1) = 6.51\ m^2$

Difference in air pressure = Inside pressure - Outside pressure

= $(1.0-0.954)$ atm = $0.046$ atm

Conversion of the pressure in its SI unit.

⇒ $1$ atm = $101325$ Pa

⇒ $0.046$ atm = $0.046\times 101325 =4660.95$ Pa

We have to find the net force.

We know,

⇒ Pressure = Force/Area

⇒ $Pressure=\frac{Force }{Area}$

⇒ $Force =Pressure\times Area$

⇒ Plugging the values.

⇒ $Force =4660.95\times 6.51$

⇒ $Force=30342.78$ Newton (N)

So,

The net forces which pushes the window is 30342.78 N.

3 0

3 years ago

Opposite meaning of rebel<br>

RUDIKE [14]

Answer: Hello, The opposite of rebel is supporter, adherent.

Explanation:

7 0

2 years ago

What is the mechanical advantage of a 8 m ramp that rises 2 m to a stage?

Neko [114]

Answer:

Mechanical advantage = 4

Explanation:

Given the following data;

Distance of effort, de = 8m

Distance of ramp, dr = 2m

To find the mechanical advantage;

Mechanical advantage = de/dr

Substituting into the equation, we have;

Mechanical advantage = 8/2

Mechanical advantage = 4

5 0

2 years ago