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Find its speed after falling 70 m g if it falls 2 xs farther, by how much will the speed change Since if y is doubled, v will be increased by 2xs 2 A marble dropped from a bridge strikes the water in 60 s Calculate a the speed with which it strikes the water (this isV = 61î Mm/s Solution The force on a moving charge is given by Equation 292 (called the Lorentz force) F = q(E v × B) (a) For a stationary proton, q = e and v = 0, so F = eE = (16 × 10 −19 C)(74î 28ˆ j ) kN/C = (118î 0448ˆ j ) fN (b) For the electron, q = −e and v = 61î Mm/s, so the electric force is the negative of870 A 115V 1000VA IS = = We will now calculate the primary voltage referred to the secondary side and use the voltage regulation equation for each power factor (1) 08 PF Lagging = EQ =115∠0°V °A ′ VP VS Z IS j =11∠14° V Gravity Wave Diagnosis Using Empirical Normal Modes In Journal Of The Atmospheric Sciences Volume 56 Issue 15 1999 VjA 70 'ã "¯^ V[g