A 73 kg skateboarder on level ground travels at 6.4 m/s towards a ramp. What is the maximum height attained by the skateboarder on the ramp?

Fill in the blank. the number of each type of element in the compound (other than 1) is represented by a small number to the right of the element symbol.

What type of nuclear decay causes the atomic number of an element to increase by 1?

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight