friction is a force that always acts an opposition movement

friction is a force that always acts an opposition movement 英语翻译if we know that a force of 4N acts on an object while it 英语翻译1.Work is done on an object only when a net force acts o 20 The direction _______ a force acts is changeable. 英语翻译The gravitational force that acts on a 1200 kg space pro The direction a force acts can be 1.Romanticism was an artistic movement that------out of a re The child acts as if he _____ an adult A. is B. was C. were 2.What is the net force on an apple that weighs 1 N when it 英语翻译A:The force of the earth,s gravitational pull acts verti A heart that loves is always young. A heart that loves is always young