PLEASEE HELPP ME THIS IS DUE TODAY ILL DO ANYTHING & BRAINLIEST :( (look at the pictures for the question)

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

What is meant by the statement" the melting poin of glycerine is 13 degree celsius