Remember those aliens from exam #1? they're back! after the sun's missing mass and wrangling the earth back into its stable orbit, they decide to have some real turn after pirating cable tv for awhile, watching the discovery channel they come lo believe that humans are just crazy about mountains therefore, using their superior technology, they decide 10 drop a brand new mountain of 10* earth masses in the middle of west texas along 1-10 (co-latitude 60degree). before the addition of the mountain, consider the earth to be a rigid, uniform spherical mass spinning about its axis. alter the mountain has been added, show that it will take the north pole (along the axis of rotation) approximately 1000 years to move 100 miles from its original position,

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

not too sure thinking all accelerations are pointed down

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray