Answer:
MA = length of resistance arm/length of the effort arm
MA = length of resistance arm/length of the effort arm
From left to right, follow the dots in line 1 with your finger. Count a steady beat out loud, and time your motion so your finger crosses a dot at the end of each beat. Don’t pause at the dots, and move as smoothly as you can. A good way to count is to say or think “1 Mississippi, 2 Mississippi,” and so on. Is your finger moving at a constant rate, or is the rate changing?
Answer:
A) The rate changes as i move my finger
I’m not the greatest at physics my strong points are writing but I really need to do this to pass science this trimester pls help!
There’s more questions but I can only add 5 questions so- haha ima put the rest in different questions!
PLS HELP!!! Which are examples of a phase change? (Select all that apply.)
evaporating water
cutting wood
frying eggs
melting butter
Answer:
evaporating water, frying eggs, melting butter.
Explanation:
Answer:
Evaporating water
Melting butter.
Explanation:
For a phase change to occur, heat energy needs to be released or absorb, and the process can be reversible. A phase change can cause physical changes but no new substance is formed.
These are examples of phases changes:
Melting: solid to a liquid (Melting butter)Freezing: liquid to a solidVaporization/Evaporation: liquid to a gas (Evaporating water)Condensation: gas to a liquidSublimation: solid to a gasDeposition: gas to a solid→Frying eggs in a chemical change (not reversible, a new substance is formed).
→Cutting wood is a physical change.
(*) My little brother (5th grade) just took the test and -evaporating water & melting butter- were the right answers.
(**) Hope this helps others who are looking for the answer of this question :)
Where do earthquakes occur?
Answer:
Over 80 per cent of large earthquakes occur around the edges of the Pacific Ocean, an area known as the 'Ring of Fire'; this where the Pacific plate is being subducted beneath the surrounding plates. The Ring of Fire is the most seismically and volcanically active zone in the world.
Explanation:
hope this helps
Finally, repeat the procedure for line 3. Count a steady beat, and time the motion of your finger so it crosses a dot at the end of each beat. Is your finger moving at a constant rate or a changing rate along line 3?
Answer:
it is changing rate along line 3
