Answer:
0.283m
Explanation:
Speed (v) = wavelength × Frequency (f)
Wavelength = speed/ frequency
Wavelength = 343/ 1210 = 0.283m
Which is a drawback of solar energy?
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A. It depends on the climate.
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B. It is not a renewable resource.
C. It is difficult to use for electricity.
D. It can be a source of water pollution.
Answer:
a. collectivism
Explanation:
the practice or principle of giving a group priority over each individual in it.
A good example of this is culture. Collectivism in cultural terms refers to a culture that privileges family and community over individuals. For example, children in collectivist societies are likely to take care of elderly parents if they fall ill and will change their own plans in the event of a family emergency.
Answer:
Frequency, f = 0.63 Hz
Period, T = 1.58 s
Speed of a wave, v = 1.34 m/s
Explanation:
The equation of a wave is given by :
...(1)
y is in mm
x is in meters
t is in seconds
The general equation of a wave is given by :
...(2)
(i) Compare equation (1) and (2) we get :
Since,
(ii) Period of wave is :
(iii) Speed of a wave,
Stars are not really planets because they are far, far away from our solar system.
Hope this is helpful~
