a pin place in contact with one surface of a glass block of thickness 1.5cm and refractive index 1.5 is viewed along the normal to the opposite surface. by how much does the pin appear to be displaced?

The heliocentric and the geocentric models of the solar system included these central principles

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.