Read the following article that appeared in a magazine. "Conservation of energy is important in today's society. Energy sources, such as oil atom,
and coal, which have been used for the development of an industrial society, cannot
be relied upon as heavily in the future. Renewable energy sources cannot provide
such large quantities of energy for society without causing problems.
(i)
Give two reasons why oil should not be relied on as a major source of energy
for the future.
(2) marker

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

The image below shows numerous volcanic mountains in the pacific northwest. what is the most likely cause of the volcanic and earthquake activity in this region?

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount