Which notations are commonly used on force diagrams to show forces acting on another object?

Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?

Which of the following correctly describes the early view of catastrophism?

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.