When i wave a charged golf tube at the front of the classroom with a frequency of two oscillations per second, i produce an electromagnetic wave of frequency 2hz. what is the wavelength of this wave? (a) 6.7 × 10−9m (b) 1.5 × 108m (c) 3.0 × 108m (d) 6.0 × 108m

To solve this problem it is necessary to apply the concepts related to Wavelength depending on the frequency and speed of light.

The equation that meets these parameters is given by

Where,

c = Speed of light

f = Frequency

Our values are given as

velocity of light in free space

f = 2Hz

Replacing we have that

Therefore the correct answer is B.

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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