: Cho mạchđiệncósơđồnhưhìnhvẽ: Biết, E1 = E2 = E3 = 3V, r1 = r2 = r3 = 1
R1 = R2 = R3 = 5
, R4 = 10
Tính suất điện động và điện trở trong của bộ nguồn và cường độ dòng điện
trong mạch chính
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The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the displacement of a string particle and x is the position of the particle on the string. the wave is traveling in the +x direction. what is the speed v of the wave?

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? your

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply