Answer:
the answer is c
Explanation:
Light is part of a spectrum of electromagnetic energy that includes radio waves, microwaves, infrared radiation, visible light, ultraviolet "light", x rays, and gamma rays. Electromagnetic energy travels as waves that vary in wavelength.
Order:
Make an observation
Ask a question
Make a hypothesis
Test the hypothesis
Analyze the results and make conclusions
Communicate the results
Have a great day!
True is the answer.........
Radial Symmetry is shown by an adult Echinoderm.
Where Ao = starting amount, At = amount after time t, and k = rate constant
<span>You are given that the half-life is 33 seconds </span>
<span>Calculate the rate constant </span>
<span>ln(2/1) = kx33 sec </span>
<span>0.693 = kx33 </span>
<span>k = 0.0210 s^-1 </span>
<span>Now calculate the amount left after 43.2 sec </span>
<span>ln(100%/A1%) = 0.0210 x 43.2 </span>
<span>ln(100/A1) = 0.9074 </span>
<span>100/A1 = 2.478 </span>
<span>A1 = 40.4%</span>