Question

A force F= ( -3i+j+5k) N is acting at a particle at a point p, whose position vector is r = (7i+ 3j+k) m. Find the torque of force about the origin point​

Answer 1

Answer:

if an object of 7 cm heght is placed at a distance of 12 cm from a convex lens of focal length 8 cm foind the position,nature and height of image

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