Match the letters to the numbers for 30 points!
1.ca
2.h2o
3. nuclear decay
4. nuclear synthesis
5. η
6. positive charge
7. e
8. number of protons in nucleus
a. element
b. proton
c. fusion
d. compound
e. fission
f. atomic number
g. neutron
h. electron

How much work would be needed to raise the payload from the surface of the moon (i.e., x = r) to an altitude of 5r miles above the surface of the moon (i.e., x = 6r)?

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.