4.50 x 1010Hz
5.0 x 109Hz
4.5 x 109Hz
2.0 x 106Hz
Correct answer is D
f = \(\frac{V}{\lambda} = \frac{3 \times 10^8}{150}\)
= 2.0 x 10\(^6\) Hz
transverse
longitudinal
stationary
electromagnetic
Correct answer is B
No explanation has been provided for this answer.
What type of motion does the skin of a 'talking' drum perform when it is struck with a drum stick?
Random
Rational
Translational
vibratory
Correct answer is D
No explanation has been provided for this answer.
113,000J
117,200J
234,400J
420,000J
Correct answer is B
mc\(\theta\) + ML = 50 x 4.2 x 20 + 50 x 2260
= 117,200J
60oC
40oC
25oC
10oC
Correct answer is C
120 x 4.2(50 - \(\theta\)) = 200 x 4.2(\(\theta\) - 10)
\(\theta = \frac{33600}{1344} = 25^oC\)