How to draw a ray diagram of an object 1cm high that is placed 2cm in front of a convex lens of focal length 6cm?

J. j. thomson’s experiment disproved the theory that an atom

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?

2. circled insects have mutations, or changes to their dna. how many of the offspring insects in this generation have mutations?