What would researchers have to demonstrate to convince you that they had discovered life on another planet? Which characteristics must the entity they discovered possess?

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.