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scoundrel [369]
3 years ago
13

The communications system has evolved greatly in the last 20 years. People are now able to communicate more quickly and easily u

sing computers, cellular phones, and other devices. Identify one possible side effect this change may have. Explain your answer.
Identify one physical or social system that would be affected by an increase in the average age of Canada’s population. Describe how this change would affect the system.
Physics
2 answers:
Leya [2.2K]3 years ago
3 0

Answer:

Explanation:

transportation might be affected if there's an increase of populatio in canada

Olin [163]3 years ago
3 0
Though the communications systems have evolved greatly in the last 20 years it has caused a social issue. People spend too much time on their phone and and care too much about what others think.
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Which of the following describe a neutron?
Leokris [45]
Neutral charge, because neutron means neutral
5 0
4 years ago
Determine the vector sum of the displacements Δd1 = 2.4 m [32° S of W]; Δd2 = 1.6 m [S]; and Δd3 = 4.9 m [27° S of E].
sergeinik [125]

Answer:

3.44 metres

Explanation:

To determine the vector sum of the displacements Δd1 = 2.4 m [32° S of W]; Δd2 = 1.6 m [S]; and Δd3 = 4.9 m [27° S of E], resolve the given parameters into x - component and y - component.

Resolving into x - component

- 2.4cos32 + 4.9cos27 = 2.3306

Resolving into y - component

- 2.4sin32 - 4.9sin27 - 1.6 = - 2.553

The vector sum of the displacement will be

Sqrt( 2.3^2 + 2.6^2) =

Sqrt ( 11.81)

3.44 m

Therefore, the vector sum of the displacements is 3.44 metres

6 0
3 years ago
How can jet streams impact weather
CaHeK987 [17]

Jet streams, which are rapidly moving ribbons of air 6 to 9 miles above the Earth, influence the weather by separating warm and cold air and pushing weather systems around the globe. The movement of a jet stream affects temperatures and precipitation.



HOPE THIS HELPS

6 0
3 years ago
A 26 cm object is 18 cm in front of a plane mirror. A ray of light strikes the object and is reflected off the mirror at a 42-de
natita [175]
The angle of reflection is the angle between the reflected ray and the normal.
In this case the angle of reflection is 42 degrees

Characteristics of images formed in a plane mirror include
The image is upright
The image is virtual
the image is the same size as the object
The image is at the same distance from the mirror as the object
The image is formed behind the mirror

A plane mirror forms an image which is the same size as the object
Therefore since the object is 26 cm long , the image would still be 26 cm.
4 0
3 years ago
Read 2 more answers
Suppose a vertebra is subjected to a shearing force of 420 N. Find the shear deformation in m, taking the vertebra to be a cylin
vazorg [7]

Answer:

1.34103\times 10^{-7}\ m

Explanation:

F = Shearing force = 420 N

L_0 = Initial length = 2.6 cm

d = Diameter = 3.6 cm

r = Radius  = \frac{d}{2}=\frac{3.6}{2}=1.8\ cm

E = Young's modulus = 80\times 10^9\ N/m^2

A = Area = \pi r^2

Change in length is given by

\Delta L=\frac{FL_0}{AE}\\\Rightarrow \\\Rightarrow \Delta L=\frac{420\times 0.026}{\pi 0.018^2\times 80\times 10^9}\\\Rightarrow \Delta L=1.34103\times 10^{-7}\ m

The shear deformation of the vertebra is 1.34103\times 10^{-7}\ m

8 0
3 years ago
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