1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
miv72 [106K]
3 years ago
15

The technological challenges of installing cellphones across the globe

Physics
1 answer:
Leona [35]3 years ago
3 0

Answer:

I don't know sorry For this question

You might be interested in
I NEED HELP ASAP!!! 100 points if you answer these 7 questions:
netineya [11]

Answer:

#1. B. Alfred Wegener

#2. C. Volcanic activity at the ocean bottom.

#3. B, C. Continental, Sea floor (oceanic).

#4. B. Folding

#5. B. Tectonics

#6. C. Point underground where the earthquake starts

#7. C. Flood waters carrying away soil

Explanation:

#1. Alfred Lothar Wegener was a German polar researcher, geophysicist and meteorologist. During his lifetime he was primarily known for his achievements in meteorology and as a pioneer of polar research, and is also known as the father of plate tectonics.

#2. The most prominent feature of ocean topography discovered in the 1960s was: Volcanic activity at the ocean bottom. The continents have always been in their current positions.

#3. Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. The two types of tectonic plates are continental and oceanic tectonic plates.

#4. Tremendous pushing forces exerted by two of Earth's plates moving together squeezed rock layers from opposite sides. This caused the rock layers to buckle and fold, forming folded mountains. Folded mountains are mountains formed by the folding of rock layers caused by compression forces.

#5. Plate tectonics is the scientific theory explaining the movement of the earth's crust. It is widely accepted by scientists today. Recall that both continental landmasses and the ocean floor are part of the earth's crust, and that the crust is broken into individual pieces called tectonic plates.

#6. The hypocenter is the point within the earth where an earthquake rupture starts. The epicenter is the point directly above it at the surface of the Earth. Also commonly termed the focus. See also epicenter.

#7. This process is known as erosion. In earth science, erosion is the action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location.

Hope this helps!

Have a nice day!

If you find my answer helpful

<em>Pls consider marking my answer as </em><em>Brainliest</em><em>! It would mean a lot!</em>

3 0
3 years ago
A car starts from rest and accelerates from u seconds until it reaches a speed of 10ms
9966 [12]
Distance = speed* time

10x10^-3 *u + 10x10^-3 * 2u = 125

0.01u + 0.02u = 125

0.03u = 125
u = 4166.66666.... s

acceleration = (final velocity - initial velocity)/time

(10x10-3 - 0)/4167 = 2.3998 * 10^-6 m s-2
6 0
3 years ago
List down the different phases of the Moon​
mixas84 [53]

Answer:

new Moon.

waxing crescent Moon.

first quarter Moon.

waxing gibbous Moon.

full Moon.

waning gibbous Moon.

last quarter Moon.

waning crescent Moon.

Explanation:

7 0
3 years ago
Read 2 more answers
Explain why it is not advisable to use small values of index in performing refraction through a prism experiment
horsena [70]
The refractive index is the ratio of the speed in a vacuum to the speed of light in the given medium. If the refractive index is too low, there will not be a large bending, or deviation, of the light beam from its original path.


The small deviation will make it difficult to carry out the experiment, and is more likely to cause errors. Therefore, larger refractive indexes should be used, in order to ensure that the bending of the light beams is easily traceable.
8 0
3 years ago
You and your friend Peter are putting new shingles on a roof pitched at 20°. You're sitting on the very top of the roof when Pet
dexar [7]

Answer:

vi = 3.95 m/s

Explanation:

We can apply the Work-Energy Theorem as follows:

W = ΔE = Ef - Ei

W = - Ff*d

then

Ef - Ei = - Ff*d   <em> </em>

If

Ei = Ki + Ui = 0.5*m*vi² + m*g*hi = 0.5*m*vi² + m*g*hi = m*(0.5*vi² + g*hi)

hi = d*Sin 20º = 5.1 m * Sin 20º = 1.7443 m

Ef = Kf + Uf = 0 + 0 = 0

As we know,   vf = 0  ⇒ Kf = 0

Uf = 0  since hf = 0

we get

W = ΔE = Ef - Ei = 0 - m*(0.5*vi² + g*hi)  ⇒   W = - m*(0.5*vi² + g*hi)   <em> (I)</em>

<em />

If

W = - Ff*d = - μ*N*d = - μ*(m*g*Cos 20º)*d = -  μ*m*g*Cos 20º*d    <em>(II)</em>

<em />

we can say that

<em />

- m*(0.5*vi² + g*hi) = -  μ*m*g*Cos 20º*d  

⇒ vi = √(2*g*(μ*Cos 20º*d - hi))  

⇒ vi = √(2*(9.81 m/s2)*(0.53*Cos 20º*5.1m - 1.7443 m)) = 3.95 m/s

<em />

6 0
3 years ago
Other questions:
  • You cannot get more work out of any machine than what you put into it. <br><br> 1)True<br> 2)False
    14·1 answer
  • Suppose a pendulum bob is swinging back and forth. If the highest point is 12.5 cm above the lowest point, what would be speed o
    11·1 answer
  • Copper has a specific heat capacity of 3.80 x 102 Jkg-1K-1 What temperature
    11·1 answer
  • A hydraulic cylinder causes the distance between points A and O to decrease at a constant rate of 3 inches per second. a) Determ
    12·1 answer
  • What is the function of brushes ​
    10·1 answer
  • Which type of bonds hold two or more water molecules together
    10·1 answer
  • What principle explains why lifting heavy objects is easier using ramps?
    13·2 answers
  • How are living things organized into domains and kingdoms? Check all that apply
    5·1 answer
  • PLEASE HELP ILL GUVE BRAINLIEST
    11·1 answer
  • A grandfather clock depends on the period of a pendulum to keep correct time.(ii) Suppose a grandfather clock is calibrated corr
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!