Why might you want to use a single fixed pulley?

a to reduce the force needed to raise objects

b to raise or lower heavy objects

c

to raise or lower lightweight objects

d

to reduce the weight of lifted objects

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

“in 1492 columbus sailed the ocean blue” is an example of: a)explicit memory b) procedural memory c) semantic memory d)episodic memory