Two car A are B are moving along a straight road in the same direction with velocity of 25km/h and 30km/h respectively find the velocity of car B relativel to car A

Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.

Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity

Explain the difference in reactivity of the elements based on their electron configurations.