the two ways you could increase acceleration
Answer: mass(how much the object weighs) and force(how hard you push the object)
Explanation:
if 34.7 g of O2 reacts with iron to form 79.34 g of iron oxide, how much iron was used in the reaction?
A.
19.84 g
B.
44.64 g
C.
104.1 g
D.
114.04 g
Answer: B. 44.64 g
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
Mass of reactants = mass of iron + mass of oxygen = mass of iron + 34.7 g
Mass of product = mass of iron oxide = 79.34 g
As Mass of reactants = Mass of product
mass of iron + 34.7 g = 79.34 g
mass of iron = 44.64 g
Thus 44.64 g of iron was used in the reaction
how are magnetic field lines and electric field lines alike
As velocity increases, what happens to momentum?
A. It stays the same
B. It increases
C. It decreases
Answer:
B. it increases
Explanation:
Remember that momentum = mass * velocity. So momentum and velocity are directly proportional, so as velocity increases, so will momentum of the object.
Answer:
If velocity of an object increases then moment would also get increased.
Explanation:
Velocity and mass are directly proportional to momentum.
hope it helps!
In a circult, a battery is used to
1. slow down current
2. conduct current
3. raise the potential of electrons
4. convert electrical energy into some other form of energy
Answer:
4. convert electrical energy into some other form of energy
At what point in a waterfall, do the drops of water contain the most gravitational potential energy?
Answer:
The water above receives energy as it falls down the short waterfall. This energy was stored as potential energy in the gravitational field of the Earth and came out of storage as the water dropped. This energy which came out of the gravitational field ended up being expressed as the kinetic energy of the water. That is, the water gains kinetic energy as it drops. An ounce of water is going faster when it hits the bottom of the waterfall than it was when it went over the top of the waterfall
Explanation:
The drops of water contain the most gravitational potential energy at the top before they start falling.
At the top of the waterfall
GravitationAt the top of the waterfall, the water drops have the most gravitational potential energy before they start falling as the water at the peak of the waterfall is higher in the Earth's gravitational field and has gravitational potential energy. The potential energy is converted to kinetic energy when it falls. As a result, energy is not created; it was always there, stored as potential energy.
Potential energy is energy that is stored and is determined by the relative positions of various pieces of a system. Kinetic energy is the energy that an item or particle has as a result of its movement.
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Empty spaces are referred to as
Answer:
An unoccupied area or volume. The empty space at the sides of the page is called the "margin". ... Atoms are 99.999999999999% empty space.
Explanation:
Answer:
A vacuum.
Explanation:
A vacuum has an empty space and is used in Science.
Dinesh wants to launch a package over the garden wall to his friend on the other side. His plan is to set up a see-saw, put the package on one end and jump on the other end. Dinesh determines that he will land on the board with a force of 1,127 newtons, and the package weighs 322 newtons. The board he is going to use for the see-saw is 9 meters long. How close to the end of the board should Dinesh put the fulcrum?
Answer:
Dinesh should put the fulcrum 2 m from himself and 7 m from the package.
Explanation:
Let the fulcrum be x meters from Dinesh's end.
The sum of clockwise moment must balance the sum of anti-clockwise moment.
Taking a moment about the fulcrum
(Force exerted by Dinesh) × (Distance of Dinesh from the fulcrum) = (Weight of the package) × (Distance of the package from the fulcrum)
Force exerted by Dinesh = 1127 N
Distance of Dinesh from the fulcrum = x m
Weight of the package = 322 N
Distance of the package from the fulcrum = (9 - x) m
1127 × x = 322 (9 - x)
1127x = 2,898 - 322x
1127x + 322x = 2,898
1449x = 2898
x = (2898/1449) = 2 m
Hence, Dinesh should put the fulcrum 2 m from himself and 7 m from the package.
Hope this Helps!!!
What does ROCAPV mean?
Answer: Rancho de Area Comunes PV
Explanation: it means
Rancho de Area Comunes PV
In an AC Monte Roca PV System Profile, where the following are depicted:
Location
Commissioning
Production
Operator
PV system power
Module
And communication.
If the displacement is increasing as a function of time, then velocity:
A. is negative.
B. is zero.
O c. is decreasing.
D. is positive.
If the displacement is increasing as a function of time, then velocity is positive.
Since, V=d/t
so, Velocity is directly proportional to time.
A student measured the volume of three rocks. The diagram above shows the
results of her investigation. Which correctly orders the rocks from least to
greatest?
A. Rock A, Rock B, Rock C
B. Rock C, Rock A, Rock B
C. Rock B, Rock C, Rock A
D. Rock A, Rock C, Rock B
Answer:
option B is right
...............
Answer: A C B
Explanation:
If you look closely the water levels show which is bigger fun fact.
Anand gets into an elevator and travels 50 m straight up in a time of 5 s. He then travels in the opposite direction, straight down, for 70 m in a time of 6 s. What is his average speed and velocity, respectively, over the 11 s period?
A. 10.9 m/s, 1.82 m/s
B. 10.9 m/s, −1.82 m/s
C. 21.8 m/s, 10.9 m/s
D. −10.9 m/s, 5.2 m/s
Answer:
10.9 m/s, −1.82 m/s
Explanation:
We have,
Anand gets into an elevator and travels 50 m straight up in a time of 5 s. He then travels in the opposite direction, straight down, for 70 m in a time of 6 s.
Total time of journey is 11 seconds.
Total distance is 50 m + 70 m = 120 m
Total displacement is 50 m - 70 m = -20 m
Average speed, [tex]s=\dfrac{120\ m}{11\ s}=10.9\ m/s[/tex]
Average velocity, [tex]v=\dfrac{-20\ m}{11\ s}=-1.82 \ m/s[/tex]
So, the correct option is (b) 10.9 m/s, −1.82 m/s.
A flowerpot that has a mass of 1.5 kg is sitting on a windowsill 30 meters from the ground. Is the energy of the flowerpot potential of kinetic?
How much energy does the flowerpot have?
Answer:
Potential energy
441 joules
Explanation:
The flower pot is not moving so it does not have kinetic energy. Anything that is still and a distance from the ground does have potential energy.
Amount of energy: p=mggh
p=1.5(9.8)(30)=441 joules
The flower pot's energy is measured in potential energy since it is remaining stationary and the energy is stored, the flowerpot is not moving about so it is not kinetic energy.
The formula for potential energy is:
GPE = mgh
The m stands more mass, the g stands for gravitational energy (9.8m/s^2) and the h stands for height.
Our values for the following terms are:
M = 1.5kg
G = 9.8m/s^2
H = 30 meters
Now, we can plug it into our formula to solve for the amount of potential energy.
GPE = 1.5(9.8)(30)
First, let's multiply the gravitational energy and the height.
30 x 9.8 = 294
Then, multiply the mass by the result.
1.5 x 294 = 441
Therefore, the potential energy of the flowerpot is 441J.
A TV draws 0.867 A of current when connected to a 122 V outlet. It’s resistance is 140.71.
A.)How many electrons pass through the TV per minute?
B.)How much electrical energy does the TV convert to other forms of energy
per minute?
Answer:
Explanation:
current measures charge flowing per second .
A current of .867 A means charge of .867 coulomb is flowing per second
charge flowing per minute = .867 x 60
= 52.02 coulomb
one electrons carries a charge of 1.6 x 10⁻¹⁹ Coulomb
So no of charge flowing per minute
= 52.02 / 1.6 x 10⁻¹⁹
= 32.5 x 10¹⁹ .
B )
electrical energy consumed per minute
= V X I X t , V is volt , I is current and t is time .
= 122 x .867 x 60
= 6346.44 J .
_____________ radiation is the least harmful type of radiation.
Alpha
Beta
Gamma
Explanation:
Alpha radiation is the least harmful type of radiation.
plz give me brainliest
Please help, I have no idea what the answer to this is and I did not learn it in class ;-;
Answer:
Gravitation.
Explanation:
The space where the planets are is absolutely empty, so there is no friction. The planets may have some magnetism, but magnetic forces are negligible when compared to the Gravitational force over the planets due to the Sun mass. The equation which describes the Sun's force is: F = [tex]\frac{G.msun.mplanet}{r^{2} }[/tex] which is the famous Newton's gravitational law. Radiation from other stars doesn't contribute to the planets' motion, which is elliptical trajectory.
what are the 2 processes involved in parents passing on their genes?
Answer:Chromosomes are passed from parents to offspring via sperm and eggs. The specific kind of chromosome that contains a gene determines how that gene is inherited.
Explanation:
An object falling to the ground has decreasing kinetic
energy and increasing potential energy. Do you agree? Why or why not
PLEASE HELP AS SOON AS POSSIBLE
I WILL MARK YOU AS BRAINLIEST
Answer:
Energy exists in different forms, all of which can be classified as either potential energy or kinetic energy. Potential energy is energy stored in an object due to its position or arrangement. Kinetic energy is energy of an object due to its movement - its motion.
so it would be the other way around
Explanation:
Answer:
As an object falls it gains kinetic energy whilst losing potential energy.
Microwave,radio signal,light,earthquake which does not belong
Answer:
earthquake does not belong to electromagnetic waves
What is the velocity of a wave that has a frequency of 400 Hz and a wavelength of 0.5 meters?
Answer:
4.2
Explanation:
The early experiments with static charges were done by:
Newton
Gilbert
Michelson
Galileo
Answer:
the answer is b .Gilbert
Explanation:
hope it helps !
The absolute magnitude of a star is the amount of light received by Earth. true or false
Answer:
FALSE
Explanation:
Answer: false its the apparent
Explanation:
Matter in which particles are arranged in repeating geometric patterns is a ______.
Question 9 options:
solid
liquid
gas
plasma
solid is the state of matter which it's particles are arranged in such pattern
Yosef is playing with different kinds of rubber bands. Some are very narrow and some are quite wide. Yosef is curious about the rubber bands, and develops this scientific question: Does the width of a rubber band affect how easily it can be stretched?
He decides to develop a hypothesis to test this scientific question. What could Yosef's hypothesis be?
Answer:
He could have many different hypothesis, but here is one.
Explanation:
If rubber bands are wider, then the rubber bands will stretch further, because the wider a rubber band is the stronger it is.
PLEASE HELP The Hertzsprung-Russell diagram shown here suggests that the stars with BOTH the highest temperature AND greatest absolute
magnitude are
A) giants
B)Super giants
C) White dwarfs
D) stars similar to the sun
Answer:
White dwarfs because you look at where the highest temperature is and where is the highest magnitude. Fun fact, the sun will become a white dwarf.
Explanation:
The Hertzsprung-Russell diagram shown here suggests that the stars with Both the highest temperature and greatest absolute magnitude are:
C) White dwarfs
"Hertzsprung-Russell diagram"The Hertzsprung-Russell diagram shown here suggests that the stars with Both the highest temperature and greatest absolute magnitude are White dwarfs.
White dwarf stars (glow lesson D) are the ultimate developmental organize of moo to middle mass stars, and are found within the foot cleared out of the HR chart.
These stars are exceptionally hot but have moo radiances due to their little size.
Thus, the correct answer is C.
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ASAP if you Answer right I will mark the brainiest
Answer:
1. internal heat
2.none of above
3.haumea
4. its orbit is not elliptical
5.eris
6.ceres
7.is closer to sun than pluto
What is the basic premise of the universal gravitational law?
Answer:
Newton's law of universal gravitation is usually stated as that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Explanation:
Answer:
Each object in the universe that has mass attracts every other object that has mass
Explanation:
Its the correct answer on the quiz
10. Which of the following types of drug use is not found in Erich
Goode's list of drug use types?
A) Legal instrumental
B) Legal recreational
C) Legal nonrecreational
D) Illegal recreational
Legal nonrecreational types of drug use is not found in Erich Goode's list of drug use types. Hence, option (c) is correct.
What is Erich Goode's list of drug use types?American sociologist Erich Goode is an expert in the sociology of deviance. He has authored a lot of books on the subject generally as well as on particular aberrant subjects. At the State University of New York at Stony Brook, he was a professor.
Goode's four drug use patterns
Legal instrumental use: Using over-the-counter and prescription medications to treat or relieve symptoms.Legal recreational use: Using legal substances (such as coffee, alcohol, or tobacco) to induce a particular frame of mindIllegal instrumental use - Using non-prescription medications to carry out an action or achieve a target.Illegal recreational use: Using illicit substances to get high or have fun.Learn more about drug, refer the link:
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Study the image of a seismic graph.
Graph of P & S Wave Travel Times, showing Travel time in minutes across distance in kilometers for P and S waves. S wave starts at zero kilometers, zero minutes, and increases to 10,000 kilometers, 25 minutes. P wave starts at zero kilometers, zero minutes and increases to 10,000 kilometers, 13 minutes.
About how far does the S wave travel through Earth in 13 minutes?
2,000 km
4,000 km
6,000 km
8,000 km
Answer:
It is B. 4,000Explanation:
I just took the quiz on edge2020
Answer:
B
Explanation:
The south pole of a compass points to the geographic north pole.
true or flase ?
Answer:
true
Explanation:
When it comes to magnets, opposites attract. This fact means that the north end of a magnet in a compass is attracted to the south magnetic pole, which lies close to the geographic north pole. ... The earth spins around the geographic poles, but magnetic compasses point to the magnetic poles.
