Astronauts in orbit are weightless. 

Energy can neither be created nor destroyed only converted into different forms. 

The cultural development of the West saw little interaction with North Africa and Asia until the Age of Exploration.

The invention of the printing press accelerated existing critiques of religious authority, rather than initiating them.

The medieval Church uniformly suppressed all forms of intellectual inquiry during the Middle Ages.

The revival of long-distance trade in the High Middle Ages contributed to the growth of towns and the decline of serfdom.

Which artery and vein supply the anterior tip of the tongue? 

The Sternocleidomastoid muscle divides the neck into an anterior and posterior triangle 

Infections within the different layers of cervical fascia may affect other organs within the body. In particular, infections in the retropharyngeal space might spread to the thorax.  How would this, if at all, affect speech? 

In a softball game, a 0.200 kg softball traveling at 12.0 m/s at an angle of 50.00 below the horizontal is hit by a batter.  Just after the hit, the ball is traveling at 45.0 m/s at an angle of 35.00 above the horizontal.  Video shows the collision time between the bat and ball was 25.0 ms.  Determine the magnitude of the force exerted on the ball by the bat.