calculate the distance at which an object should be placed in front convex lens of focal length 10 cm to obtain an image double its size​

iron would move it is magnetic there is a mag field around the current in the wire

false br

it doesn't. it was imagined up in the middle ages.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.