2008 - JAMB Physics Past Questions and Answers - page 5

If 2P is added P, the beam will bend at R side. So to keep it in equilibrium. P should be moved nearer to 0

VR = No. of pulleys = 4

Efficiency = ^M.A/_V.R x 100% = load

Effort x 100%_V.R

∴80 = 1200 x 100 x 1100__Effort4

∴ Effort = 1200 x 100 = 375N_80 x 4

At melting point there is no change temperature

Particles of the transmitting medium in transverse wave oscillate in a direction perpendicular to the propagation of the wave

Magnifications = ^V/_U = 4

∴ V = 4U
¹/_V + ¹/_U = ¹/_f
¹/_4u + ¹/_U = ¹/₁₂
⁵/_4U = ¹/₁₂

4U = 12 x 5 = 60

∴ U = 15 cm

The resistors are in series

∴ Reff = R₁ + R₂ + .....

= 4 + 4 + 4 + 4 + 4 + 4 = 24 Ω

Left = L₁ + L₂ + L₃

= 5mH + 10mH + 20mH = 35mH

1.223 x 10^-11m

for the conversion of mass 14 + 4 = 17 + x

∴ X = 18 - 17 = 1

for conservation pf charge:7 + 2 = 8 + y

y = 9 - 8 = 1

Thus, the element is ₁¹X which is equal to hydrogen nucleus ( proton)

0, 0, 1, 1, (\bigcirc{2}), 4, 4, 4, 4

median = 2