by Sunday | Jan 4 | Physics WAEC
A. 164N B. 160N C. 158N D. 172N Correct Answer: Option B B. 160N Explanation ω = 2πF = 2π × 2 = 4πrad−1 Centripetal force = mrω2 ⇒ 0.5 × 2 × (4π)2 ⇒ 160N
by Sunday | Jan 4 | Physics WAEC
A. decreased B. increased C. unchanged D. oscillating Correct Answer: Option A A. decreased Explanation In unstable equilibrium, potential energy decreases as the height decreases.
by Sunday | Jan 4 | Physics WAEC
A. equipotential energy B. maximum potential energy C. minimum potential energy D. maximum kinetic energy Correct Answer: Option C C. minimum potential energy Explanation Potential energy = mgh = (mg)h = force × distance ⇒ 0 × d =...
by Sunday | Jan 4 | Physics WAEC
A. 0.05kg B. 0.20kg C. 0.80kg D. 1.00kg Correct Answer: Option A A. 0.05kg Explanation Mr (90 – 50) = 0.2(100 – 90) 40Mr = 0.2 × 10 Mr = 2 40 = 0.05kg
by Sunday | Jan 4 | Physics WAEC
A. 20 m/s B. 30 m/s C. 40 m/s D. 50 m/s Correct Answer: Option C C. 40 m/s Explanation From two parts 20m apart a = 10m, x = 6m, A = 5 V = ω √(A²−X²) = 5 √(10²−6²) = 40m/s
by Sunday | Jan 4 | Physics WAEC
A. receives from our eyes B. disperses C. absorbed D. reflect Correct Answer: Option D D. reflect Explanation Colours presented by objects are the ones reflected
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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