Science People I Need Your HELP???????!!!!!!!!!!!?

Question

i am working on my science test review that i was absent for so i know nothing about. can you anwser these questions and fast?

what is the difference between a Dissecting Microscope and a Light microscope besides on has a light?

Orbital motion is a combination of foward motion and
A) frictional resistance B) free fall
C) horizontal acceleration D) weightlessness

for all simple machie , when the output force is greater than the imput force,
A) a mechanica; advantage of less than 1 results
B) the directions of the input force and output force must be the same
C) the input force is exerted over a smaller distance than the output force
D) the input force is exerted over a larger distance than the output force


if you know any of those anwsers reply fast. test is tomarrow

Answer 1

Dissecting probably allows you to see through the specimen
B
D

I'd asume.

Answer 2

What good are links when you want 'answers'.

A light microscope, the specimens must let the light through it, the light is on the bottom and shines through the specimen. Usually has one tube to look through and has higher magnifications.
A dissecting microscope shines a light on top of the specimen, which is opaque. Usually has two tubes (one for each eye) and lower magnifications, since the specimens are usually larger.

Answer 3

"Scientists" attack Christianity and "Christians" attack technology. How can technology be used to purpose non-repeatable phenomena. Did "guy" exist 7,000 years in the past? It relies upon on the kind you define "guy." in case you define "guy" as somebody who can checklist background, the respond would desire to be "no." while i develop into attending college, a protracted time in the past, C-14 relationship develop into stated as an "absolute" relationship technique and constrained to 50,000 years in the past. Now it truly is seen a relative relationship gadget. It has alway been considered as such by potential of physicists and extends previous 60,000 years. C14 is created by potential of bombarding the nitrogen loose on the precise of the ambience with cosmic potential. If there is way less loose nitrogen, there is way less C14 created. much less C14 in an merchandise shows an older age. technology would not attack something. the 2d it does, it ceases to be technology. Scientists who take aspects like that turns into clergymen of "technology" quite than observers of experiments and technology is all approximately repeatable technology. right it is the weak point of all relationship systems. no one has ever examined them for 2 hundred,000 years... or perhaps 60,000 years. the thought the forces that govern those systems are static is without data. Even the assumption of time has its limits. without mass/gravity, time would not exist, in accordance ot Steven Hawkings. yet, then, the Biblical relationship is likewise in line with assumptions by potential of a few nineteenth century bishop. How long is an afternoon if the earth would not rotate on the situation of the sunlight... or if there is not any sunlight. Then there is the situation of randomness. If a pail of ice unexpectedly began to boil, could it truly is a miracle or an twist of destiny of possibility? technology could say it develop into an twist of destiny of possibility possibly in easy terms to take place as quickly as in one thousand billion trillion buckets of ice. in some unspecified time contained sooner or later, that that's possibility and that that's supernatural attain a nexus.