A hiker travels south along a straight path for 1.8 hours with an average velocity of 0.59km/hr, then travels south for 2.9 hours with an average velocity of 0.85 km/hr. what is the hiker’s displacement?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

The ability to make things happen is also called a. heat b. force c. matter d. energy