How old is Lilly? 

The next 2 questions refer to this scenario: Suppose we have discovered a new solar system, comparable to our own, orbiting the star Toon. It contains at least four planets (shown in the diagram—not necessarily in order or to scale). We have been able to obtain some of the information regarding this solar system: m = mass in units of Earth masses (Me) r = radius of planet in Earth radii (re) R = mean distance from center star in units of the Earth’s orbit’s radius (Re). Toon Sylvester Mickey Donald Taz m=2.50x1030kg r =8.00x108m m=2.0 Me r=1.0 re R=1.0 Re m=1.00 Me r=1.0 re R=2.0 Re m=1.00 Me r=0.5 re R=4.0 Re m=4.0 Me r=2.0 re R=6.7 Re

Which best represents the sum X + Y + Z?

(Seyfang, 6 pt)  Short answer question:  Briefly describe (a) how people can get infected by Naegleria fowleri and (b) the disease this parasite can cause. (c) What are the preventions people can take to avoid infection with N. fowleri?

The magnitude of the normal force will be the greatest on which segment of the incline?

Assuming that the orbit of the space station is a circle, and that there are no other changes in the satellite’s orbit other than the boost given by the rocket, the orbit of the satellite will be

The next 3 questions refer to this scenario: The diagram depicts two pucks on a frictionless table. Puck II is four times as massive as puck I. Starting from rest, the pucks are pushed across the table by two equal forces.

The next 3 questions refer to this scenario: Two children, a boy and a girl, are riding in a car with their mother. The girl is sitting in the back seat, and is securely fastened in her seat belt. The boy is sitting in the front seat, and is not wearing his seat belt. The car is moving at 25 mph on a straight road when the mother suddenly brakes to avoid hitting a dog that has run into the street. The car quickly comes to a stop, without swerving to either side.

Suppose the same rocket is reloaded with fuel, and launched from a spaceship that is far away from any planets or stars. What happens to the rocket in this case after it has burned all of its fuel?

We measure the marginal ________ of a good by what a ________.