Answer:
A) The rate changes as i move my finger
an 8 500 kg airplane is flying at 220 km/h at 13.0 above the ground brainly
Answer:
what to do in the question
Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
A. .25
B. 2.5
C. 5
D. 20
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 :)
What is the process that occurs when snow heats up and turns into a liquid?
Evaporation
Melting
Freezing
Condensation
What is the equation for the mechanical advantage of a lever?
MA = length of effort arm / length of resistance arm
MA = length of resistance arm/length of the effort arm
MA = length of effort arm + length of resistance arm
MA = length of effort arm * length of resistance arm
I think it is the second one, is that correct? HELP!
Answer:
MA = length of resistance arm/length of the effort arm
MA = length of resistance arm/length of the effort arm
HELPPPPP ASAP PLZZZZZZ WILL MARK BLAINIEST!
Use your model to explain how one of these metamorphic rocks: gneiss, marble, or quartzite could become igneous or sedimentary rock and how that rock could become a third type of rock.
my model: I could add to my model if it is needed in the answer.
A person walks 20 meters to the east and then 20 meters to the west. Find distance and displacement.
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!
Help please T^T i shall give the right answer brainliest
Answer:
B
Explanation:
Answer:
ur answer is a i belive
Explanation:
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
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
explain why severe storms occur along front
Answer:
Violently rising air ahead of cold fronts often leads to powerful thunderstorms.
Explanation:
Answer:
Stormy weather as the warm air mass at the surface rises above the cool air mass,
Explanation:
vigorous rising motion is often produced, leading to the development of showers and occasionally severe thunderstorms.
Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. ... These clouds form in the warm air that is high above the cool air. As the front passes over an area, the clouds become lower, and rain is likely.
