Answer:
6.944m/s
Explanation:
Answer:
6.94444
Explanation:
Answer:
To determine the value of atmospheric pressure, we can use the concept of hydrostatic pressure. By comparing the lengths of the air column in the capillary tube when held horizontally and vertically, we can equate the pressure difference to the difference in height of the mercury column. Using the given values and the density of mercury, we can calculate the atmospheric pressure.
B)terrestrial planets and asteroids
C)dwarf planets like Pluto
Answer:
12620
Explanation:
Answer:
(6.77 x 10³) + (5.85 x 10³) = 12620= 1.2620 x 10⁴
Explanation:
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The electromagnetic waves reach Earth, while the mechanical waves do not.
Both the mechanical waves and the electromagnetic waves reach Earth.
Neither the mechanical waves nor the electromagnetic waves reach Earth.
Answer:
The electromagnetic waves reach Earth, while the mechanical waves do not.
Explanation:
Sun's radiation that reaches the Earth belongs to the Infra red, Visible and the Ultraviolet range of frequencies of the electromagnetic spectrum. Sun's rays travel through vacuum before entering the earth's atmosphere.
These rays can travel through vacuum. The speed with which electromagnetic waves travel is the same as the speed of light .
The mechanical waves are the longitudinal and the transverse waves. They require a medium to travel. In the absence of a material medium they cannot travel. Material media are like air, water, oil, glass etc.
That's why even though both mechanical and electromagnetic waves are generated by the Sun, it is the electromagnetic waves that reach the earth.
b. Fluorescence
c. Phosphorescence
d. Oil lamps
Penn Foster STudents: Oil Lamps