Question

Three identical blocks each having a mass m are pushed by a force F on a
frictionless table. (answer the following questions)
1) what is the acceleration of the blocks?
ii) what is the net force on the block P? F-R,
iii) what force does P apply on Q.
iv) what forces Q apply on R?

Answer 1

Answer:

The power of the lens is known as the inverse of the focal length of the lens measured in meter(m). Power of lense = 1/ focal length in meter. A concave lens has a negative focal length. Therefore, it is a concave lens.An open ended distribution means that one or more of your classes (or bins) is open-ended. In other words, it doesn’t have a boundary. In this frequency distribution table, a height of 57″ or less (in the first row) means this is an open ended distribution.