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A metallic bar 50 cm long has a uniform cross-sectional area of 4.0 cm(^2). If a tensile force…

An electron moves with a speed of 2.00 x 10(^7) ms(^{-1}) in an orbit in a uniform magnetic…

 A tennis ball projected at an angle 0 attains a range R = 78. If the velocity imparted…

 A tennis ball projected at an angle 0 attains a range R = 78. If the velocity imparted…

A particle is projected horizontally at 10 ms(^{-2}) from the top of a tower 20 M high. Calculate…

 (a) Define nucleon number (b) A radioactive isotope of Americium (Am —241) decays into a nucleus of Neptunium…

(a) Define:(i) the coulomb; (ii) resistance. (b) State the three effects of an electric current. (c) State the…

(a) Define:(i) the coulomb; (ii) resistance. (b) State the three effects of an electric current. (c) State the…

(a)(i) what is resonance? (ii) State two eXwilples of resonance. (iii) Differentiate between loudness and intensity of sound.…

(a) Define specific latent heat of vaporization. (b) (i) What are renewable energy sources? (ii) List four renewable…