Explanation:
A wavefront is the long edge that moves, for example, the crest or the trough. Each point on the wavefront emits a semicircular wave that moves at the propagation speed v. These are drawn at a time t later, so that they have moved a distance s = vt.
<u>Answer</u>:
"Chemical bonds are formed or broken" is NOT true about physical properties.
<u>Explanation</u>:
Any characteristic that could be determined without changing composition of the substance is called as physical properties.A object can be observed or described using a physical property. Physical properties of a substance include only size, shape and physicality in a general aspect.
It does not include how its chemical properties like bonds or which type of elements combined to form a compound likewise. Hence formation or breaking of chemical bonds does not determine the physical properties
Answer:the human impact had some enivornmental effects.
Explanation:
For Climate it has no impact.
Air Quality, it had minor and temporary impacts from construction activities.
While for the Topography,
Geology and Soils Minor, localized
impacts within project
footprint where observed and there was a potential major impacts within the footprint of the lake.
Surface Water Hydrology, it has minor short term adverse impact and a major, long term adverse impacts to Rough River hydrology between the dam and new outlet works Increased risk of major, long
term changes to hydrology upstream of dam. For the Groundwater there was no significant adverse impact. While the Vegetation had minor adverse impact Minor adverse impact.
Aquatic Resources had long-term beneficial impact.
<span>A rock is dropped from a sea cliff and hits the water 3.2s later. How high is the cliff?
t = sqrt(2y/g)
3.2 = sqrt(2y/9.81)
y = 50.23 m
</span><span>How long would it take sound to travel the same distance?
t = 50.23 / </span><span>343 m/s
t = 0.15 s
</span><span>How long would it take light to travel this distance?
t = 50.23 / </span><span>299 792 458 m / s
t = 1.68x10^-7 s</span>
