Properties of matter questions | form five Physics

During the rain, 64 rain drops combined into a single drop. Calculate the ratio of the total surface energy of the 64 drops to that of a single drop.

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UNSOLVED

Define Young`s Modulus of a material.

Answer / Solution

UNSOLVED

Why work is said to be done in stretching a wire?

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UNSOLVED

A steel wire AB of the length 60cm and cross sectional area 1.5x10^-6 m² is attached at B to copper wire BC of length 39cm and cross sectional area 3.0x10^-6m². If the combination of the two wires is suspended vertically from a fixed point at A, and supports a weight of 250N at C; find the extension (in millimeter) of the

1. Steel wire
2. Copper wire

Answer / Solution

UNSOLVED

Based on the kinetic theory of gases determine

1. The average translational kinetic energy of air at a temperature of 290K.
2. The root mean square seed (r.m.s) of air at the same temperature as in (i).

Answer / Solution

UNSOLVED