Distance=average velocity x time =((12+8)/2) x 3 =30m
Answer:
The optimum length of the antenna is 2.27 m
Explanation:
Given:
Broadcasting frequency Hz
From the formula of wavelength in terms of frequency,
Where speed of light
m
For finding the length of antenna,
m
Therefore, the optimum length of the antenna is 2.27 m
Recall that
It takes the car about 3.2 s to reduce its speed from 14.6 to 10.8 m/s, since
Next, recall that
Then the car undergoes a displacement of about 41 m, since
Energy is released in this reaction possibly in the form of heat thus it is an exergonic and or exothermic reaction.
Explanation:
The energy is sometimes transferred as heat, inflicting the reaction mixture and its surroundings to become hotter. The temperature increase may be detected employing a measuring device. Some samples of exothermic reactions are: Combustion .An chemical reaction may be a chemical process that releases energy by lightweight or heat.
<u>Answer</u>
81.94 m
<u>Explanation</u>
The centripetal force of an object moving in a circular path is given by:
F = mv²/r Where m is the mass of the object, v is the constant velocity and r is the radius of the curve.
F = mv²/r
3,300 = (1600×13²)/r
3,300 = 270,400/r
r = 270,400/3,300
= 81.94 m