Why is respiration an exothermic reaction? a. a large amount of energy is released into its surroundings b. the heat content, q, of the reaction is positive c. a large amount of energy is required to activate the reaction d. there is no exchange of energy between the system and the surrounding

as technology advances, new experiments often expose problems in accepted theories. c

hope i

-lavira: )

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.