Answer:
physical change
Explanation:
it doesnt change it chemically
Answer:
Ripping paper is physical
Explanation:
The way you know if it is physical or not is does it change physically, any physical change
No chemical changes occurred because the chemical matter didn't change nor did the actual object, it's not like the paper turned into a hotdog so it would be physical (if that makes any sense ;))
what happens first during cellular respiration
Answer:
glcolysis
Explanation:
Glcolysis uses glucose to create ATP within the cytoplasm of the cell.
Answer:
the answer is glycolysis
Explanation:
A new material formed in a chemical reaction is called a?
atom
element
product
reactant
Help I don't understand how to do this I need answerssss
Answer: what is this sorry
In the Inca civilization what was the quipo used for?
It involved knots in strings called quipu. The quipu was not a calculator, rather it was a storage device. Remember that the Incas had no written records and so the quipu played a major role in the administration of the Inca empire since it allowed numerical information to be kept.
Need Answer Quick
Copper is used in wiring because its metallic bonding gives its _______ a high degree of freedom and the material a high conductivity.
electrons
neutrons
protons
Answer:
Electrons
Explanation:
All unauthorized experiments are prohibited. True or false
Answer:
true....................
What does the force of gravity between two objects depend on?
A. The masses of the two objects and the distance between them
B. Only the mass of the smaller object and its distance from the
larger object
C. Only the masses of the two objects
D. The mass of the smaller object and the speed at which it's moving
Answer:
A
Explanation:
Answer:
Explanation:
The formula for the force of gravity is
F=G * m1 * m2 / r^2
G is a constant. It does not change with the use of the formula. There are 2 masses, so the force depends on the masses.
The right hand side is divided by r^2. that's a distance. So that's the other quantity influencing the Force.
B: incorrect. Both objects have masses. That determines the force between them.
C: incorrect. It's also the distance between them.
D: incorrect. The formula contains nothing to indicate that velocity is important.
The answer is A
You are a marine biologist who wants to study what type of zooplankton (microscopic animals that live in the ocean and feed larger organisms) inhabit a particular area of the Pacific Ocean. You have taken your samples, but now need to collect your data. What advantage would using a compound light microscope have over using a dissecting microscope? can anyone help me
Answer:
The advantage of the compound light microscope over the dissecting microscope is the magnification power of the telescope. Compound light microscope magnifies from 40x up to 1,000x while dissecting microscope magnifies up to 40 x only. In this regard, more magnification power is advantageous to view smaller objects.
ANALYZE A ball of clay is manipulated into different shapes in each of the images
below. Does the amount of mass and matter in each of the images below change as
the size and shape of the clay ball is changed? Explain your reasoning.
Answer:
The amount of mass and matter in all the transformations of the clay ball will remain the same or constant
Explanation:
From the law of conservation of mass we have, for an enclosed system to and from which there is no transfer of matter or energy, mass cannot be created nor destroyed, and remains constant at the given value, but the matter which make up the mass can be changed into different forms
Therefore, the clay ball can be transformed into different shapes and will still posses the same initial mass before the transformation, provided there are no transfer of matter or energy from the clay ball system.
how do you do this? i got 48 yards but 16 feet isn't 48 yards so what am i doing wrong?
Answer:
16 feet is 5.3 repeating yards
Explanation:
Why hydrocarbons are regarded as parent organic compounds?
Answer:
hydrocarbons always consist hydrogen and carbon and the simplest organic compounds are also made up of hydrogen and carbon
Which of the following elements has the greatest metallic character?
Rb
Mo
Au
B
Answer:
Au. fifififiof
Explanation:
djdjdjndsksidndndnendnnd
Answer:
Rb
Explanation:
are carbon atoms alive and why? (plz)
Answer:
yyes they are lovely . . . . .
Answer:
No they are not alive
Explanation:
Since they are just atoms how would they be alive? They also make up all living things so how would they be made of themselves
2) 2,047m2 + 42m = ?
Answer: It's 2,089m2
Explanation:
What is an organism and microorganisms?plz help ASAP!
Round to 3 significant figures.
21.4501
Answer:
it is twenty-one point four five zero one or 2.14501 × 101.
Explanation:
your welcome
A sample of helium gas has a volume of 1.25 L and a temperature of 22 °C, under a constant pressure. What is the new volume if the temperature is increased to 45 °C?
Answer:
the new volume is 1.35L
Explanation:
The computation of the new volume in the case when the temperature rises to 45 degrees is shown below:
GIven that
Volume = 1.25L
And, the temperature is 22 degrees celsius
So, [tex]T_1[/tex] = (275 + 22)k
= 297 k
Now
[tex]T_2[/tex] = (275 + 45)k
= 320 k
Now as it is a constant pressure
So, the new volume is
[tex]\frac{V_1}{T_1} = \frac{V_2}{T_2} \\\\V_2 = \frac{V_1}{T_1}\times T_2 \\\\= \frac{1.25}{297}\times 320[/tex]
= 1.35L
hence, the new volume is 1.35L
1. How many miles are in 1,000,000 centimeters?
Answer:
I looked it up and it said 6.214
After developing a hypothesis, a scientist is ready to test it by A. gathering facts and evidence. B. conducting an experiment. C. posing questions about an observation. D. communicating with other scientists.
Answer:
B.
Explanation:
Some one plz help me out ASAP!
Answer:
can you help me with my science
What is an element?
What is it represented by?
What is it made up of?
Give an example
Answer:
what is an element?
element is a pure substance which cannot be broken down by chemical means
what is it represented by?
By its symbol and atomic number
what is it made up off?
It is made up of it's owm type of atom.
Example
carbon,oxygen,hydrogen,gold,silver,iron
can someone pls help
Answer:
1.2km=1,200,000! hope this helps
what is the electron configuration for ground-state Boron
Answer:
The remaining electron will go in the 2p orbital. Therefore the B electron configuration will be 1s22s22p1.
Which of the following is NOT a trait of a scientist?
We
Curiosity
O Creativity
Logical
O inaccurate
Answer:
I think inaccurate is not a trait.
Explanation:
N 2 , O 2 , and Cu are elements. True False
Answer:
True
Explanation:
N2 is nitrogen.
O2 is oxygen.
CU is copper.
They are all elements. Hope this helps!
what area of chemistry are marine chemist
Answer:
As a marine chemist, you study the chemical properties of different bodies of water with the goal of making them safer and cleaner. For this to happen, you determine the potential effects of foreign chemicals, as well as the impact of aquatic transportation and construction, on rivers, lakes, and oceans.
Explanation:
The dimensions of water tank are 1.0 m wide by 3.25 m long by 1.50 m tall what is the volume of the water tank t
Answer:
4.9 m^3
Explanation:
volume= 1.0 x 3.25 x 1.50= 4.875 -> 4.9m^3
how many eggs are produced at a time in human body?
Answer: Well, at birth, there are approximately 1 million eggs. And at the time of puberty, only 300,000 remain.
Explanation:
Answer:
only one egg will be produced by a single ovary in a month. the ovaries function in an alternate manner., ie., one ovary will release an egg in one month and the other ovary will release the ovum next month.
please help me with this multiple choicee!!!
Answer:
Answer : it's 8.8kg
Explanation:
that's what's it should be.
Trying to find the energy in calories but, I don't understand the last part of the formula. Please help!
energy in calories = (mass of water)(change in water temperature)(0.001 Cal/g·°C)
Food Item: Peanut
Mass Of Food (g): 0.3
Mass Of Water (g): 51.4
Initial Water Temperature (°C): 21.2
Final Water Temperature (°C): 39.8
Energy (calories): ???
Answer:
Energy: (51.4)(39.8-21.2)(0.001) = 0.956Cal/g°C
