Answer:
hope this helps you
Explanation:
Example 1: A 20 kg object has a velocity of 4.5 m/s in the positive x direction. ... What is the momentum of a 3000 kg truck traveling at 25 m/s? 2. A 1500 kg ferryboat has a momentum of 25000 kg∙m/s. ... *A 0.01 kg bullet has a speed of 700 m/s before it strikes a 0.95 kg wooden block ... We will be going outside so please.
Simple conversions
You bought your pig and it weighed 82 pounds. By fair your goal weight is 267 pounds. Your pig will gain 1 pound for every 3 pounds of feed. How much feed will you need to get your pig to it's goal weight? (show your work) (5) Feed costs $21.37 per 50 pound bag. How much will your feed cost be, to get your pig to it's goal weight? (5) MUST SHOW ALL WORK.
Number of feed = 555 pounds
Feed cost = $237.21
Further explanationThe main composition of algebraic expressions are:
• 1. phrases/terms
• 2. variable
• 3. constants
• 4. arithmetic operations
• 5. coefficients
• 6. exponent
Initial weight = 82 pounds
Goal weight = 267 pounds
The difference in weight that must be achieved :
[tex]\tt 267-82=185~pounds[/tex]
The pig will gain 1 pound for every 3 pounds of feed⇒ 1 pound weight=3 pounds of feed
The amount of feed must be given:
[tex]\tt 185~pounds~weight\times 3~pounds~feed=555~pounds~of~feed[/tex]
Feed costs $21.37 per 50 pound bag, so for 555 pounds :
[tex]\tt (555~pounds\div 50)\times \$21.37=\$237.21[/tex]
9.8 x 10^-6 regular notation
Answer:
0.0000098 should be the answer
Explanation:
Many plants in rainforests have leaf tips that come to a point, so precipitation drains off the leaf. This helps to keep the plant safe from harmful germs. Based on this info, what resource is prevalent in a rainforest?
Answer:
rainfall/water
Explanation:
The possession of drip tips by the leaves of plants in the rainforest is a form of adaptation against high rainfall. Without the drip tips on leaves, water will persist on the surface of leaves, and in conjunction with the warm climate, promotes the growth of pathogens such as fungi and bacteria.
Hence, the possession of drip tips on leaves is an indication of the prevalence of water in the rainforest region.
What are the three conditions that can cause a chemicl reactions, give examples?
Help me plz
which of the following was an important discovery that marie curie made while studying? large atoms gain mass through radioactivity
atoms can change into different atoms with new properties
all radioactive elements give off the same amount of energy
the number of protons and neutrons in an atom never changes
i need this quick!! i cant find it anywhere online and i need help
Answer:Using a makeshift workspace, Marie Curie began, in 1897, a series of experiments that would pioneer the science of radioactivity, change the world of medicine, and increase our understanding of the structure of the atom
Explanation:
Answer: B
Explanation:
What is the formula for the compound formed by lead(II) ions and Chlorine ions?
Answer:
Pb(CrO4)Al2(SO4)3
Explanation:
Where is nature can you find isomers?
11 points!!!
Answer:
Isomers are defined as the molecules or polyatomic ions which have similar molecular formula but different in arrangements of atoms.
Isomers can be found in food items carrying glucose (C6H12O6), galactose or fructose, they all have the same chemical formula but differ structurally and chemically.
Glucose is found in vegetables and milk, galactose found in dairy products, and Fructose is found in fruit juices.
ANSWER THESE 5 MULTPLE CHOICE QUESTIONS!!!
I'LL GIVE 30 POINTS AND A BRAINIEST:)
Answer: 1, magnesium & mg
2, two energy shells
Explanation:
If you could give a gift to anyone in the world, what would that gift be and to whom would you give it to?
( By the way, money is no object.)
Answer:
I would give the person I care about the most all my love, time, attention, and respect. It's the only thing that I can give to anyone.
Explanation:
Answer:
I would give it to my mom.
Explanation:
I would give her a lot tbh, but something not too crazy... would be a really nice/pretty necklace or some sort of jewelry.
i would give her a lot, because she deserves so much, she shouldn't have been through the things that she did. And I love her a lot! soo... yeah!
Have a nice day! ( ﾟдﾟ)つ Bye
And make sure that she is, and some other people are always happy, because they deserve so much better
Suppose you are working in a chemistry lab and trying to make a solution of a substance called Sodium Chloride (which is a solid) of a definite amount and volume. Mention which lab apparatuses you would need to complete your work perfectly.
Answer:
a weighing balance, a measuring cylinder, a spatula, a beaker/flask, and a stirrer
Explanation:
The lab apparatus that would be needed to prepare a solution of sodium chloride would be a weighing balance, a measuring cylinder, a spatula, a beaker/flask, and a stirrer.
The weighing balance would be used to weigh out the required amount of sodium chloride. The beaker or flask would be placed on the weighing balance and its weight zeroed. The spatula would then be sued to take out the sodium chloride from its container into the beaker till the required amount is reached. The measuring cylinder would then be used to measure out the required volume of water which would be added to the salt in the beaker. The stirrer would then be used to stir the mixture in order for the salt to dissolve.
6. Which of the following molecules has a central atom with precisely two unshared
pairs of electrons?
methane, CH4
ammonia, NH3
hydrocyanic acid, HCN
water, H20
CLEAR ALL
Answer:
water, H20
Explanation:
From the given choices, only water has two unshared or lone pairs of electrons in its central atom.
The formula of water is:
H₂O
H is hydrogen with 1 electron
O is oxygen with 8 electrons and 6 valence electrons
To form the covalent bond, the 6 valence electrons are involved. Two out of the 6 bonds with the two oxygen.
The remaining 4 gives the two lone pairs.
Products do what? what do products do in science
Answer:
In chemistry, a product is a substance that is formed as the result of a chemical reaction. In a reaction, starting materials called reactants interact with each other.
Explanation:
can anybody help me with a question in chemistry?
In a chemical reaction _________ are the substances present after the reaction?
(PLEASE HELP! I NEED TO GET THIS DONE BY 11:00 PM! SOMEONE TELL ME HOW TO GIVE BRAINILIST BEACAUSE THE PERSON THAT GETS THIS I WILL GIVE BRAINALIST! BUT I DONT KNOW HOW TO SO TELL ME PLEASE! HELPPPPPPPPPPPPPPPP!)
P.S(sorry about the long yelling and again... im in middle school so I am just going to pick chemistry because I don’t know which subject this is, it just says photosynthesis)
Answer:
The substances present after the reaction are called products.
Explanation.
They are called reactants at the start of the reaction.
Given the following equation...
Fe + H2SO4 → Fe2(SO4)3 + H2
What is the charge (oxidation number) of Fe in Fe2(SO4)3 in 334 g of Fe2(SO4)3 ? (use atomic masses rounded to the nearest whole number.)
Answer:
The charge is +3
Explanation:
In Fe₂(SO₄)₃ the global charge is 0.
As we know, the sulfate ion, SO₄, has a charge of -2, as there are 3 SO₄ ions in the molecule, the global charge is -2*3 = -6. To solve for the charge of Fe we can use:
2Fe - 6 = 0
2Fe = +6
Fe = +3
The charge of the Fe of Fe₂(SO₄)₃ is +3Answer:
+3
Explanation:
The alkaline earth metal family element that has the largest atomic radius can be found in which period on the periodic table?
a)
7
b)
1
c)
2
d)
6
Answer:
c. 2
Explanation:
The alkaline earth family is the second most reactive group, and it's elements can't be found free in nature. They are called "alkaline" earth metals because they form "alkaline" solutions, hydroxides, when they react with water
What state has the highest average speed limit on rural freeways
Answer:Alaska
Explanation:
2. The state of matter with a definite shape and volume is.
A. matter
B. solid
C. liquid
D. gas
Answer:
solids
Explanation:
Solid is A substance with definite volume and shape. Solids do not flow and therefore do not conform to the shape of their containers. Liquid - A substance with definite volume but without definite shape
Answer:B-Solids
Explanation:
What is Newton's 1-3rd laws of motion? Give examples for each
Answer:
In the first law, an object will not change its motion unless a force acts on it
In the second law, the force on an object is equal to its mass times its acceleration
In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Explanation:
Hope this helped :)
Which elements belong to the same group?
N, P, As,Sb
Ne, F, Ar,Kr
Rb, Sr, Y, Zr
K, Ca, Mg, Be
HELP!!! name two properties of metals
Answer:
1) Ductile
2) Malleable
please mark brainlest if right
Explanation:
the properties of a compound are ____ the properties of the element that form it
d = 24 g/ml
v = 1200 ml
m = ?
Answer:
28,800 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volume
From the question we have
mass = 24 × 1200
We have the final answer as
28,800 gHope this helps you
What is the meaning of plate tectonics
Answer:
A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest.
Define and give an example of convection
Answer:
Boiling water- When water boils, the heat passes from the burner into the pot, heating the water at the bottom. This hot water rises and cooler water moves down to replace it, causing a circular motion. ... ice melting - Ice melts because heat moves to the ice from the air.
Explanation: mark me brainlliest pls (also hopes this helps!!)
A radioactive nucleus can change from one element to another. How does this happen?
A radioactive decay is occurring by the emission of charged particles such alpha or beta to form a new stable atom with changes mass number and atomic number.
What is radioactive decay?Heavy unstable radioactive elements undergo nuclear decay by which they form a stable isotope or new atom with changed atomic number. There are two types of nuclear decays mainly. They are alpha decay and beta decay.
During alpha decay isotopes with higher mass number undergo alpha emission and forming a new species with mass number reduced by 4 units and atomic number reduced by 2 units.
In the case of beta- decay, electrons are emitted from the atom and then forming a new atom with atomic number increased by one unit. For an electron capture process, an electron is captured to the atom forming an element with atomic number reduced by one.
To find more on radioactive decay, refer here:
https://brainly.com/question/1770619
#SPJ2
what is the mass of 1.46 mole of zinc?
Answer:Zinc grams to moles
Molar mass of Zinc(Zn) = 65.38 g/mol. This means 1 mol of Zn is 65.38g . To find the number of moles of Zn, we divide the given amount of Zn by the molar mass of Zn. Hence, 1.34 g of Zn contains 0.020 moles of Zinc
Explanation:
1 mole is equal to 6.023 × 10 ²³ molecules. The mass of 1.46 mole of zinc is 1.34 grams.
What do you mean by mole ?The term mole is defined as the amount of substance of a system which contains as many elementary entities.
The mole concept can be used to convert between mass and number of particles.
One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.
Molar mass of Zinc(Zn) = 65.38 g/mol.
This means 1 mol of Zn = 65.38g .
To calculate the number of moles of Zn, we divide the given amount of Zn by the molar mass of Zn.
Hence, 1.34 g of Zn contains 0.020 moles of Zinc.
To learn more about the mole, follow the link;
https://brainly.com/question/26416088
#SPJ2
what is the balanced equation of K3PO4 + HCI -> KCI + H3PO4?
Answer:
K₃PO₄ + 3HCl ⇒ 3KCl + H₃PO₄
Explanation:
practice these, it gets easier. goal is to match the amount of reactants and products on both sides of the equation. cheers!
Explain how cross cutting principles (intrusions, inclusions, faults) help to determine the relative age of a rock layer.
Answer:
The principle of cross-cutting relationships states that a fault or intrusion is younger than the rocks that it cuts through. ... So the fault must be the youngest formation that is seen. The intrusion (D) cuts through the three sedimentary rock layers, so it must be younger than those layers
Explanation:
please write the process (how soap is made?.......................
Answer:
When oil and lye are combined and heated, the result is soap. This chemical reaction is called saponification. Without lye, saponification isn’t possible, so lye is necessary to create soap.
