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2 years ago

How is high speed internet transmitted around the world?

Physics

1 answer:

Degger [83]2 years ago

7 0

Answer:

How is high-speed internet typically transmitted around the world? over telephone wires b. through fiber optic cables c. beamed wirelessly to homes d via satellites

Explanation:

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What is the kinetic energy of a bike with a mass of 24 kg traveling at 3 m/s?

erastovalidia [21]

Answer:

KE = 1/2mv^2

KE = 1/2(24)(3^2)

KE = 12(9)

KE = 108 J

Let me know if this helps!

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2 years ago

Name 2 ways that sound waves and electromagnetic waves are different. Describe specifically.

Vlad1618 [11]

Answer:Sound waves are longitudinal waves that is, are transmitted in the same direction of oscillation of the particles in the medium. Electromagnetic waves are transverse ie, the electric and magnetic fields, which are perpendicular to each other, oscillate perpendicularly to the direction of wave propagation.

Explanation:

6 0

2 years ago

The equivalence between gravitational and inertial mass is explained in : the set of all of the events that happened on Earth

xxTIMURxx [149]

Answer:

The correct answer is theory of general relativity.

Explanation:

According to the statement of equivalence the gravitational mass force on an object standing on the surface of earth is same as the pseudo force that acts on it if it accelerated at acceleration equal to acceleration due to gravity.

According to Einestine both the forces are indistinguishable as both the forces produce same effects. Thus both are equivalent and thus gravity is a phenomenon that can be analysed in a radically different way which gives some strange results such as bending of light, existence of black holes,e.t.c

6 0

2 years ago

If 1 gallon of a liquid weighs 4 pounds how much would one ounce weight (keep in mind that liquid ounces are different than weig

Bas_tet [7]

Answer:

64 ounces

Explanation:

Pound is the unit of mass in the imperial system of units. It is used in the United States. Its calibration is done with the SI unit of mass which is kilogram. 1 lb = 0.45359237 kg

1 gallon = 4 pounds

1 pound = 16 ounces weight

So,

4 pounds = 16 × 4 = 64 ounces weight

So, 1 gallon is equal to 64 ounces weight.

1 gallon = 128 fluid ounces.

3 0

2 years ago

Suppose the space shuttle is in orbit 300 km from the Earth's surface, and circles the earth about once every 90

Valentin [98]

The centripetal acceleration of the space shuttle is $9.0 m/s^2$ (0.9g)

Explanation:

The period of revolution of the space shuttle is

$T=90 min \cdot 60 = 5400 s$

From the period, we can calculate the angular speed of the space shuttle, which is given by

$\omega = \frac{2\pi}{T}=\frac{2\pi}{5400}=1.16\cdot 10^{-3} rad/s$

Now we can calculate the centripetal acceleration of the space shuttle, given by

$a=\omega^2 r$

where

$\omega=1.16\cdot 10^{-3} rad/s$ is the angular speed

$r=6.40 \cdot 10^6 m +300\cdot 10^3 m = 6.7\cdot 10^3 m$ is the distance of the shuttle from the Earth's centre (it is the sum of the Earth's radius, 6400 km, and of the altitude of the space shuttle, 300 km)

Substituting and solving, we find

$a=(1.16\cdot 10^{-3})^2(6.7\cdot 10^6)=9.0 m/s^2$

And since $g=9.8 m/s^2$ , this can be rewritten as

$a=\frac{9.0}{9.8}=0.9g$

Learn more about centripetal acceleration:

brainly.com/question/2562955

#LearnwithBrainly

7 0

2 years ago