Answer:
a) Magnitude of the average velocity from t = 0 to t = 2 s = 2.24 m/s
b) Magnitude of the average velocity from t = 0 to t = 5 s = 3.16 m/s
Explanation:
a) Velocity is rate of change of position.
A particle's position coordinates (x, y) are (1.0 m, 3.0 m) at t = 0
A particle's position coordinates (x, y) are (5.0 m, 5.0 m) at t = 2.0 s
Displacement = (5-1)i + (5-3)j = 4i + 2j
Change in time = 2s
Velocity
Magnitude of velocity
b) Velocity is rate of change of position.
A particle's position coordinates (x, y) are (1.0 m, 3.0 m) at t = 0
A particle's position coordinates (x, y) are (14.0 m, 12.0 m) at t = 5.0 s
Displacement = (14-1)i + (12-3)j = 13i + 9j
Change in time = 5s
Velocity
Magnitude of velocity
Answer:
Pteropods are little mollusks (related to snails, slugs and squid) that drift around in ocean currents, feeding on nutrient-rich plankton. Their rich diet makes them delicious to many fish. Seals eat many fish, and sharks eat seals and fish, so there it is: not even 6 degrees of shark separation.
Explanation:
Answer:
1. The change from a liquid state to a gaseous state: boiling (evaporation)
2. The change from a gaseous state to a liquid state: condensation
3. The change from a solid state to a liquid state: melting
4. The change from a liquid state to a solid: freezing
5. The change from a solid state to a gaseous state: sublimation
6. The change from a gaseous state to so solid: deposition
7. A change of state: phase change
Explanation:
<em>A change of state is a physical change a substance suffers, it changes it physically but not chemically. In the image I added you can observe how these changes occur between the solid, liquid and gaseous states.</em>
I hope you find this information useful and interesting! Good luck!
The medium whose light have the longest wavelength is air.
<h3>What is wavelength?</h3>
The wavelength is the distance between the adjacent crest or trough of the sinusoidal wave. The wavelength is the reciprocal of the frequency of the wave.
Wavelength λ = v/f
where v is the speed of wave in medium.
Given is the chart shows the speed at which light travels through different media.
Medium Speed of light in m/s
Water 2.25 x 10⁸
Air 2.99 x 10⁸
Glass 1.97 x 10⁸
Diamond 1.24 x 10⁸
The speed of light is directly proportional to the wavelength. Greater the speed, greater will be the wavelength.
From the chart, air has the highest speed of light.
Thus, the medium whose light have the longest wavelength is air.
Learn more about wavelength.
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