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- Charge are mostly concentrated at the outermost part of a hollow conductor - Charge are also mostly concentrated at the pointed ends or places with high density point.

3 \times 10\(^{8}\) m/s

Resultant is the representing vector for multiple forces.

P = 0.2cm, L = r = 23cm VR = 2\pir P = 2\piL P = 2\pi\times23 0.2 = 230\pi

Latent heat or specific latent heat = L Heat energy = mL or L = H m = energy mass

m = 0.354g, T\(_1\) = 273^\circC = 273 + 273 = 546K P\(_1\) = 114cmHg, V\(_1\) = 2667cm\(^3\) at STP T\(^2\) = 273K, P\(_2\) = 76cmHg, V\(_2\) = ? \(\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_1}\) = 2000.25cm\(^3\)

Conduction takes places in gases when air is pumped out of a discharged tube under reduced pressure.

Newton's First law of motion describes the straight motion of a body.

Iris is similar to diaphragm.

Potential energy at the highest point = mgh PE = 4 \times 10 \times 40 = 1600J

m = 500kg, W = mg = 500 \times 10 = 5000N F = 2000N \mu = Force at constant velocity weight = 2000 5000 = 0.4

Gravitational potential energy is the energy an object possesses because of its position in a gravitational field. Since the force required to lift it is equal to its weight, it follows that the gravitational potential energy is equal to its weight times the height to which it is lifted. (i.e, P.E\(_g\) = \omegah, where \omega = mg)

- Waves are produced by vibration - Waves transmit energy along the medium - Particles of a medium vibrate with the wave motion without the entire medium - Some waves require medium for transmission (mechanical).

P = F A = mg A = (ρ \times v) \times g A = ρ \times (A \times h) \times g A P = 100 \times 2 \times 10\(^{-2}\) \times 10 = 20 N/m\(^2\)

The bob of a pendulum will have maximum kinetic energy and minimum potential energy at the lowest point of its swing.