2. At the start of an experiment, a lab cart is moving with a velocity of 0.5 m/s to the right. At the end of the experiment, the cart has increased its speed to 2.0 m/s to the right. Calculate the average velocity (that's
magnitude and direction) of the cart. For credit, show work in detail.

Distinguish between a transverse wave and a longitudinal wave.

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?