Which of the following statements about the mouthpiece of a telephone is correct? It converts sound energy into?
A. acoustic energy B. mechanical energy C. electrical energy D. heat energy Correct Answer: Option C C. electrical energyA stone of mass 2.0kg is thrown vertically upward with a velocity of 20.0 ms‾¹, calculate the initial kinetic energy of the stone.
A. 200J B. 400J C. 800J D. 1600J Correct Answer: Option B B. 400J Explanation K.E = ½Mv²=12×2×20² = 400JWhich of the following source of energy is renewable?
A. petroleum B. charcoal C. hydro D. nuclear Correct Answer: Option C C. hydroA force acting on a body causes a change in the momentum of a body from 12 kg ms‾¹ to 16kg ms‾¹ in 0.25. Calculate the magnitude of the impulse.
A. 28.0Ns B. 20.0Ns C. 4.0Ns D. 0.8Ns Correct Answer: Option C C. 4.0Ns Explanation Ft = I = MY – Mv I = 16 – 12 = 4NsWhich of the following statements about simple harmonic motion is correct? The
A. total mechanical energy is always conserved B. linear acceleration is directed to any variable point C. linear acceleration varies inversely with displacement D. period of oscillation varies linearly as acceleration due to gravity Correct Answer: Option A A. total...Products
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Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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Co-Ownership Structures and Land Acquisition Methods in Nigeria
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Rights in Community Land and Fundamental Land Concepts in Nigeria
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Customary Land Control and the Origins of Nigeria's Land Use Act
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Land Ownership Principles and Transaction Laws in Nigeria
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