On earth, yancy hits a golf ball as hard as he can.  the golf ball flies 150 meters before hitting the ground.  about how far would the golf ball fly if yancy hit it on the surface of mercury with exactly the same amount of force and in the same direction?

(ignore the air resistance on both planets.)

  a. 

more than 150 meters

  b. 

less than 150 meters

  c. 

150 meters

  d. 

150 yards

What are the differences between differing map projections ?

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

70 pts answer the following questions in full sentences and paragraphs, using at least 150 words, in the essay box below. 1. which organisms are carnivores? herbivores? omnivores? 2. if the ecosystem is balanced, which populations should be the largest? the smallest? 3. imagine a group of hunters kills half of the rabbit population. how will the other organisms be affected? 4. imagine disease kills 85 percent of the wolf population. how will the other organisms be affected? 5. imagine a foreign mountain lion species is introduced into the ecosystem. how will the other organisms be affected?