18. A robotic space probe of mass 7600 kg is traveling through space at 120 m/s. Mission control determines that a change in course of 30.0° is necessary and instructs the probe to fire rockets perpendicular to its direction of motion. If the escaping gas leaves the craft’s rockets at an average speed of 3200 m/s, what mass of gas should be expelled?

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Q: neatness. * I3 R,=10 2 D loop A R= 40 12.0 V E I2 loop B R,= 40 36.0 V F A B

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A: Here the option  (b) is correct. i.e 32m above ground level.

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Q: Q5 A force of 12 N pulls a block of mass 3.5 kg through a rope of mass 0.5 kg . The block is resting…

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A: Givenq1 = +12 nC = +12 ×10-9 Cq2 = -12 nC = -12 ×10-9 C

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