Answers If a source of sound is moving, a stationary listener will hear a sound of… If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called A. Doppler effect B. Resonance C. Ultra sound D. Diffraction of sound E. Rarefaction Correct Answer: Option A Explanation
Answers Find the maximum and minimum points of the curve (y = 2x^{3} – 3x^{2} -… (a) Find the maximum and minimum points of the curve (y = 2x^{3} – 3x^{2} – 12x + 4).… Read More
Answers (begin{array}{c|c} text{Class Interval} & Frequency & text{Class boundaries} & Class Mid-point \ hline 1.5 -… (begin{array}{c|c} text{Class Interval} & Frequency & text{Class boundaries} & Class Mid-point \ hline 1.5 – 1.9 & 2… Read More
Answers If the distance between two point charges its increased by a factor of four, the… If the distance between two point charges its increased by a factor of four, the magnitude of the… Read More
Answers If (overrightarrow{OX} = begin{pmatrix} -7 \ 6 end{pmatrix}) and (overrightarrow{OY} = begin{pmatrix} 16 \ -11… If (overrightarrow{OX} = begin{pmatrix} -7 \ 6 end{pmatrix}) and (overrightarrow{OY} = begin{pmatrix} 16 \ -11 end{pmatrix}), find (overrightarrow{YX}).… Read More
Answers The name of the president of the Nigerian Labour Congress elected in 1983 is The name of the president of the Nigerian Labour Congress elected in 1983 is A. Mr Wahab Goodluck… Read More