If the wavelength<span> is given, the energy can be determined by first using the wave equation (c = λ × ν) to </span>find<span> the frequency, then using Planck's equation to </span>calculate<span> energy. Use the equations above to answer the following questions. 1. Ultraviolet radiation has a frequency of 6.8 × 1015 1/s.</span>
Final velocity is equal to initial velocity plus at (where a is acceleration and t is time), so Vf = Vi + at
Using that formula;
Vf = 0 + 12.27(3.19)
Vf = 39.14 m/s
Note: you started from rest, so your initial velocity is 0.
Answer:
C. 5.35 × 10^-5
Explanation:
5.35 × 0.00001 = 0.0000535
Hope this helped!
Answer:
Description 1 matches C.
Description 2 matches A.
Description 3 matches D.
Description 4 matches B.
Explanation:
Description 1 matches C. From graph C, we can see that the <em>distance remains constant at a particular value</em>. Hence, the car is <em>not traveling</em> and hence it is <em>stopped.</em>
Description 2 matches A. <em>Speed is determined by the gradient of a distance-time graph</em>. A depicts a <em>linear graph</em> which tells us that the <em>gradient is constant </em>and hence the car is at <em>constant speed</em>. The fact that the<em> distance is increasing</em> shows that the<em> car is moving forward</em>.
Description 3 matches D. Graph of D becomes <em>less steeper as time progresses</em>. This tells us that the <em>gradient of the graph is decreasing </em>and hence the <em>speed of the car is decreasing.</em>
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Description 4 matches B. Graph B shows <em>distance being decreased.</em> This tells us that the <em>car is coming back</em>.
