Answers
Catalyst is a type of material that is used to speed up a chemical reaction, such that it is never used up.
The definition of a catalyst is a material that speeds up a chemical process without permanently altering its chemical composition.
The catalytic activity is defined as a chemical interaction between the catalyst and a reactant that produces chemical intermediates that may more easily react with one another or with another reactant to produce the final product that is required.
The catalyst is regenerated during the reaction between the reactants and the chemical intermediates.
The ways in which catalysts and reactants interact vary greatly and are frequently intricate in solid catalysts.
To learn more about catalysts, click:
https://brainly.com/question/1565029
#SPJ1
Related Questions
How do you solve this ?
Why is the ans C not B ?
Answers
Explanation:
Draw a free body diagram of the toolbox. There are two forces:
Weight force mg pulling down,
and applied force F pulling up.
Sum of forces in the y direction:
∑F = ma
F − mg = ma
45 N − 15 N = (3 kg) a
a = 10 m/s²
The answer should be B. It's possible the answer key has a mistake.
hich of the following is a minimal sum-of-products (SOP) equation that implements the same logic as the equation f(a, b, c) = a(b + c') + ac a. f = ab + ac b. f = ab + ac' + be c. f=a d. f = b(a + d) e. f = a(b + b)(b + c)
Answers
The minimal SOP equation that implements the same logic as the given equation is f = ab + ac.
What is SOP?The sum of product (SOP) is a type of logic circuit used to represent a logical expression. It is also known as a canonical sum of products and is a type of canonical form. An SOP expression is composed of one or more product terms. Each product term is the logical AND of one or more literals and is separated from other product terms with a plus sign. The sum of product form of a logic expression is a sum of the product terms of the expression.
To know more about SOP
https://brainly.com/question/30386797
#SPJ1
Hi please answer the question labeled d
If Q1 is 5 times larger than Q2 the force that Q1 exerts on Q2 is?
(greater than, smaller than, or exactly the same as) the force that Q2 exerts on Q1.
Answers
part a) If Q increases by 5 times its original value, the electrostatic force (F) will increase5 times as well.
part b) If r is halved (reduced by 2), the force will become four times stronger (since 2² = 4).
part c) If Q1 is positive and Q2 is negative, the charges will attract each other.
part d) If the force that Q1 exerts on Q2 is 5 times larger than the force that Q2 exerts on Q1 is same.
What is electrostatic force?The electrostatic force is described as the force of attraction or repulsion between two charged particles.
With regards to Coulomb's Law, we have that the electrostatic force between two charges separated by a distance is :
Force = k * (Q1 * Q2) / r²
Where:
F_ = electrostatic force
k = electrostatic constant
Q1 and Q2 = magnitudes of the charges
r = distance
for case a:
If one of the charges, Q1 or Q2, increases by 5 times then the electrostatic force will also increase by 5 times.
case b)
If the distance between the charges, r, is halved, the electrostatic force will become four times stronger because (1/r²).
for case c.
if Q1 is positive and Q2 is negative, the charges will attract each other because of magnetic laws.
for case d.)
If the force that Q1 exerts on Q2 is 5 times larger than the force that Q2 exerts on Q1 is same as there is a resulting stronger gravitational or electromagnetic force.
Learn more about coulomb's law at:
https://brainly.com/question/506926
#SPJ1
What is the approximate horizontal velocity at which the boy in the diagram
threw the ball?
a. +5m/s
b. +20m/s
c. +25m/s
d. +30m/s
Answers
Answer:
D
Explanation:
5+25=30
A copper atom has an atomic number of 29 and an atomic mass of 64. What is the structure of this atom?
A. It has a central nucleus composed of 29 protons and 35 neutrons,
surrounded by an electron cloud containing 29 electrons.
B. It has a central nucleus composed of 29 protons and 64 neutrons,
surrounded by an electron cloud containing 29 electrons.
C. It has a central nucleus composed of 35 protons and 29 neutrons,
surrounded by an electron cloud containing 29 electrons.
D. It has a central nucleus composed of 29 protons and 29 neutrons,
surrounded by an electron cloud containing 35 electrons.
Answers
Answer:
Explanation:
Atomic mass is nuetrons + protons.
Basically it's
? nuetrons + protons = 64
I did process of elimination:
b) It cannot be "b" because 29 + 64 doesn't equal 64.
c) It cannot be "c" because in a regular molecule the amount of protons equals to amount of electron(s).
d) 29 + 29 doesn't = 64.
Therefore, the answer is "A"
Answer: A
Explanation: Just took the test on a.pex
What kind of wave interactions is caused by a change in the speed of the wave
Answers
Answer:Refraction
Explanation:
or the bending of the path of the waves, is accompanied by a change in speed and wavelength of the waves.
The allowed energies of a simple atom are 0.0 eV, 4.0 eV, and 6.0 eV. Part A What wavelength(s) appear(s) in the atom's emission spectrum
Answers
Answer:
3.1 × 10^- 7 m and 2.1 × 10^-7 m
Explanation:
First we must convert each value of energy to Joules by multiplying its value by 1.6 ×10^-19. After that, we can now obtain the wavelength from E= hc/λ
Where;
h= planks constant
c= speed of light
λ= wavelength of light
For 6.0ev;
E= 6.0 × 1.6 ×10^-19
E= 9.6 × 10^-19 J
From
E= hc/λ
λ= hc/E
λ= 6.6 × 10^-34 × 3 × 10^8/9.6 × 10^-19
λ= 2.1 × 10^-7 m
For 4.0 eV
4.0 × 1.6 × 10^-19 = 6.4 × 10^-19 J
E= hc/λ
λ= hc/E
λ= 6.6 × 10^-34 × 3 × 10^8/6.4 × 10^-19
λ= 3.1 × 10^- 7 m
(a) The wavelength of the atom's emission spectrum when the energy is 4 eV is \(3.1 \times 10^{-7} \ m\)
(b) The wavelength of the atom's emission spectrum when the energy is 6 eV is
\(2.1 \times 10^{-7} \ m\)
The wavelength of the atom's emission spectrum is calculated as follows;
\(E = hf\\\\E = \frac{hc}{\lambda}\)
where;
λ is the wavelengthh is Planck's constantFor 4 eV;
\(\lambda = \frac{hc}{E} \\\\\lambda = \frac{(6.626 \times 10^{-34}) \times 3\times 10^8}{4 \times 1.602 \times 10^{-19}} \\\\\lambda = 3.1 \times 10^{-7} \ m\)
For 6 eV;
\(\lambda = \frac{hc}{E} \\\\\lambda = \frac{(6.626 \times 10^{-34}) \times 3\times 10^8}{6 \times 1.602 \times 10^{-19}} \\\\\lambda = 2.1 \times 10^{-7} \ m\)
Learn more here:https://brainly.com/question/9432100
I need to know the answer to this and I do not need an explanation
Answers
Answer:
3rd sentence
Explanation:
mary jogs for 15 min at 240 m/min, walks the next 10 min at 90 m/min
Answers
Answer: 4500 m
Explanation:
\(15 min. * \frac{240 m}{min.} = 3600 m\)
\(10 min. * \frac{90m }{min.} = 900 m\)
\(3600m +900m = 4500m\)
A charged Adam or particle is called a
Answers
Answer:
A charged atom or particle is called an ion :)
Calculating Displacement under Constant Acceleration
Use the information from the graph to answer the
question.
Velocity (m/s)
40
30
20
10
0
Velocity vs. Time
0 5
10
15
Time (s)
20
25
What is the total displacement of the object?
I
m
Answers
Answer:
1 km
Explanation:
displacement =velocity ×time
displacement =40m/s ×25s
displacement =1000m equivalent to 1km
A particle with mass
m = 3.80 kg
accelerates according to
a = (−3.40i + 1.70j) m/s2.
(a) What is the net force acting on the particle? (Express your answer in vector form.)
(b) What is the magnitude of this force?
Answers
The net force acting on the particle would be and the magnitude of the force would be -12.92i + 6.49j and the magnitude of the force would be 14.46 Newtons.
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
The net force on the particle = mass of the particle × acceleration
=3.80*(−3.40i + 1.70j)
= -12.92i + 6.49j
Thus, the magnitude of the net force on the particle would be 14.46 Newtons.
Learn more about Newton's second law, here
brainly.com/question/13447525
#SPJ1
100 PTS A scuba diver swims 220 m at an angle of 12 degrees below the surface of the water. What are the two components?
Answers
The diver is swimming to a distance of 220 m in a direction of 12 degree. Here, the magnitude of his displacement is 220 m and the direction is 12 degrees.
What is displacement?Displacement of an object describes how far it is from a starting point at which it was stationary. The long term displacement is called distance. Displacement is a vector quantity and having magnitude and direction.
All vector quantities have both magnitude and direction. Force, velocity, acceleration , work done etc are vector quantities.
The displacement of the swimmer is given here. Where his magnitude is 220 m and the direction is 12°. Thus, the two components given are magnitude and direction of displacement.
To find more on displacement refer here:
https://brainly.com/question/11934397
#SPJ1
The graph shows the velocity
of a T-Rex as a function
of time. The velocity
of the T-Rex between 2 and 4
seconds shown is
about...
Answers
The correct option is C, the velocity between 2s and 4s is 7 meters per second.
What is the velocity of the T-Rex between 2 and 4 seconds?Here we have the graph of the velocity of a T-Rex as function of time in seconds.
Here we need to find the average value between 2 seconds and 4 seconds.
At 2 seconds, the graph says that the velocity is 7m/s
And we can see an horizontal line that ends at 4s, so the veloicty at 4 seconds is 7m/s
Then the average velocity in that interval is that one (because it is constant)
Then the correct option is C.
Learn more about velocity at:
https://brainly.com/question/80295
#SPJ1
In what way did the cloud model resemble the Bohr model
Answers
Answer:
While Bohr's atomic model hypothesizes that electrons move in particular energy levels around the nucleus, the electron cloud model suggests that electrons move in an unpredictable pattern but are more likely to be in certain regions than others.
Explanation:
BRAINLIEST!!!
YOU HAVE 5 MINUTES!!!!
Design an easy do-it-yourself compost bin that can be put (exnfe ffpao)
together at home. You can describe it, draw and label it, or both!
Include the following in your design:
• drawing or description of design
• materials used for the bin
• size of the bin
• substances used to fill it
• household items that can go in it
• how long it takes before it is ready
• how you use the compost
2)
Compost bin design: Add these household items to
your compost bin:
Compost is ready to use in this
much time:
Use your compost this way:
Answers
The finished compost can be used to enrich soil for planting and gardening. Mix the compost into the soil or use it as a top dressing around plants.
Substances Used to Fill It:
A mixture of "brown" and "green" organic materials such as leaves, grass clippings, fruit and vegetable scraps, coffee grounds, and shredded paper can be used to fill the bin.
Household Items That Can Go in It:
Most fruit and vegetable scraps, eggshells, tea bags, coffee grounds, yard waste such as grass clippings and leaves, and shredded paper can be added to the compost bin. Meat, dairy, and fatty foods should be avoided.
How Long It Takes Before It Is Ready:
The compost should be ready to use in approximately 6 to 12 months, depending on the environmental conditions and the frequency of turning and mixing the compost.
How You Use the Compost:
The finished compost can be used as a nutrient-rich soil amendment for planting and gardening.
Compost Bin Design:
To add household items to your compost bin, simply add any of the following organic materials to the bin: fruit and vegetable scraps, coffee grounds and filters, tea bags, eggshells, yard waste such as leaves and grass clippings, and shredded paper.
Compost is ready to use in this much time:
The compost should be ready to use in approximately 6 to 12 months, depending on the environmental conditions and the frequency of turning and mixing the compost.
Use your compost this way:
The finished compost can be used to enrich soil for planting and gardening. Mix the compost into the soil or use it as a top dressing around plants.
For more question on compost
https://brainly.com/question/31910974
#SPJ11
1. Why is physics sometimes called the fundamental science?
Because it explains the basics of all sciences
Because it examines the rules that govern the universe
Because it does not require experiments or the scientific method
Because it was developed before any other branch of science
Because it is the easiest branch of science to understand
Answers
Explanation:
Because it is the easiest branch of science to understand
As Kate reads a science lesson about different types of animals, she wonders
how many types of animals there are in the world. Which active reading
strategy is Kate using?
Answers
Kate reads a science lesson about different types of animals, and she wonders how many types of animals there are in the world, it means that she is using the strategy of reading and using references.
What is an Active reading strategy?The mental processes that highly effective readers employ when approaching reading are known as active reading techniques. These reading techniques demand that the reader read critically, concentrate on the text to comprehend it, actively engage with the text, and be conscious of their own cognitive processes as they read. Active reading helps readers develop stronger critical thinking abilities, which makes things simpler to understand and helps readers retain information for longer.
There are various types of Active reading strategy, some of them are :
Analyzing the author's purposeQuestioningAnnotatingMaking predictionsTo get more information about Active reading Strategy :
https://brainly.com/question/2054906
#SPJ1
er 1
DOCS
3. A ball is thrown vertically upward from a window that is 3.6 m above the ground. The ball's initial speed is
2.8 m/s and the acceleration due to gravity is 9.8 m/s2
[ 6 marks]
(a) What is the ball's speed when it hits the ground?
to in
er 1
terit
er 1 TL
er 1 TE
comm
I
(b) How long after the first ball is thrown should a second ball be simply dropped from the same window so
that both balls hit the ground at the same time?
55.com
er 1 TE
nsubmi
Answers
Answer:
?
Explanation:
Marus traveled on a motorcylce distance of 1,298meters north to get to the nearest shopping center. He then turned back south and rode another 1,250 meters to meet his friend. What was his displacement?
Answers
Answer:
48 meters north
Explanation:
If you measure the distance between the point Marus started and the point where they stopped after traveling 1,250 meters back south, you get 48 meters. To make this a displacement quantity, you add 'north' to the end and get 48 meters north, considering this was the initial direction of the motorcycle.
Which of the following assumptions are required to conduct an experiment to accomplish the Experimental Inquiry goal of measuring Young's modulus? o The change in cross-sectional area that occurs when stress is applied can be safely neglected in calculating Young's modulus. o The material is uniform; in other words, the strain of one part of it is the same as the strain in another part when the same stress is applied. o The material is elastic; it is returning to its original length (and thickness) when the stress is no longer applied.
o Friction is negligible at the point where the stress is being applied to the material.
o The mass of the material is much less than the mass of the ring stand. o The force is being applied uniformly across the cross-sectional area of the material being stretched.
Answers
The material is uniform; in other words, the strain of one part of it is the same as the strain in another part when the same stress is applied.
What are the valid assumptions in the Young modulus model?The Young's modulus model assumes that the material is uniform and the properties are the same in all directions and that the material's properties are the same in all directions, and that it does not exhibit any directional dependence.
The Young's modulus model assumes that the deformation of the material is small, so that the change in length of the material is much smaller than its original length.
Learn more about Young Modulus:https://brainly.com/question/14458238
#SPJ1
Question 10 (1 point)
A water wave in a 17 m long pool takes 3 seconds to travel to one end of the pool.
What is the speed of the wave?
Answers
Answer:
5.67 m/s
Explanation:
The speed of a wave can be calculated as the distance traveled by the wave divided by the time taken:
Speed = Distance/Time
In this case, the distance traveled by the wave is the length of the pool, which is 17 m. The time taken by the wave to travel this distance is 3 seconds.
So, the speed of the wave can be calculated as:
Speed = 17 m/3 s
Speed = 5.67 m/s
Therefore, the speed of the water wave in the 17 m long pool is 5.67 m/s.
As part of astronaut training, a prospective astronaut is spun around in a human centrifuge such that the candidate experiences a centripetal acceleration that is 2.8 times the acceleration due to gravity on the surface of the earth. If the candidate is 11.05 m from the center, determine the candidate's speed in meters per second.
Answers
The candidate's speed (m/s), given that the candidate experiences a centripetal acceleration that is 2.8 times the acceleration due to gravity is 17.4 m/s
How do I determine the candidate's speed?We understood that the centripetal acceleration is related to speed and radius according to the following formula:
a = v² / r
Cross multiply
v² = ar
Take the square root of both sides
v = √ar
Where
v is the speeda is the centripetal accelerationr is the radiusWithe the above formula, we can determin the speed of the candidate. Details below:
Acceleration due to gravity (g) = 9.8 m/s²Centripetal acceleration = 2.8 × g = 2.8 × 9.8 = 27.44 m/s²Radius (r) = 11.05 mSpeed of candidate (v) =?v = √ar
v = √(27.44 × 11.05)
v = 17.4 m/s
Thus, the speed of the candidate is 17.4 m/s
Learn more about speed:
https://brainly.com/question/13923042
#SPJ1
Particles q₁, 92, and q3 are in a straight line.
Particles q₁ = -5.00 10-6 C,q2 = +2.50 10-6 C, and
q3= -2.50 10-6 C. Particles q₁ and q₂ are separated
by 0.500 m. Particles q2 and q3 are separated by
0.250 m. What is the net force on q2?
Remember: Negative forces (-F) will point Left
Positive forces (+F) will point Right
Answers
When three particles q1, q2, and q3 are in a straight line, the force experienced by q2 depends on the distance between the particles, the magnitude of the charges of the particles, and the relative position of the particles. The electric force on a charge q1 from a charge q3, which is at a distance r3 from the first charge, is governed by Coulomb’s Law.
In mathematical notation, Coulomb’s Law is expressed as:F = kq1q3 / r3²where F is the electric force, q1 and q3 are the magnitudes of the charges, r3 is the distance between them, and k is the Coulomb’s Law constant which is equal to 8.99 × 109 N·m2 / C2. The direction of the electric force can be positive or negative. If q1 and q3 are of the same sign, the force between them is repulsive, while if they are of opposite sign, the force is attractive.The electric force experienced by q2 due to the other two particles is the vector sum of the forces F13 and F23, which are given by:F13 = kq1q3 / r13²andF23 = kq2q3 / r23²where r13 is the distance between q1 and q3, and r23 is the distance between q2 and q3. The net force on q2 is given by:Fnet = F13 + F23The magnitude and direction of Fnet depend on the charges of the particles and the distance between them. If the two charges are of the same sign, then the force is repulsive and the net force will be in the direction of the force between them. If the two charges are of opposite signs, then the force is attractive, and the net force will be in the direction of the force between them.For such more question on Coulomb’s Law
https://brainly.com/question/506926
#SPJ8
-Cesar the monkey observed the swinging behaviors of his parents. He is now able to swing from branch to branch after much practice. The observation of his parents swinging and practicing what he saw mainly involved _____ neurons; the neurons that are the basis of
Motor
Mirror
Sensory
Reticular
Answers
The 3rd one I think . I did something similar a while ago
The observation of his parents swinging and practicing what he saw mainly involved sensory neurons.
There are five senses in the human body, they are;
SightSmellTouch TasteHearingInformation is passed to the central nervous system (CNS) from each of these senses.
The neurons that convey sensory information of sight, smell, touch, taste and hearing to the brain are called sensory neurons.
Thus, the observation of his parents swinging and practicing what he saw mainly involved sensory neurons.
Learn more: https://brainly.com/question/9911075
https://photos.app.goo.gl/wAXjG9NxWP2Wb55YA
Answers
The transfer of energy from one organism to the next in an ecosystem begins with a producer. A producer is an organism that produces its own food. A consumer is an organism in a food chain that obtains energy from producers or other consumers; consumers may be herbivores or carnivores.
Which food chain correctly describes the flow of energy in an ecosystem?
A) grass → grasshopper → fish → human
B) grasshopper → fish → human
C) human → fish → grasshopper
D) human → grasshopper → fish → grass
Answers
Answer:
A.)
Explanation:
The answer is food chain A, as plants produce their own food using photosynthesis, therefore making them producers.
A grasshopper then eats this grass, making it a consumer as it is obtaining its energy from the producer. It is then eaten by a fish and a human. This chain accurately describe the flow of energy in an ecosystem, as it goes, producer, consumer, consumer, consumer
Hope this helps a little
Answer:
sorry
Explanation:
patulong
Why is DNA a useful evolutionary clock?
Answers
You and your partner want to investigate how the mass of various sports balls will impact their force as they accelerate down a ramp. You know that objects with more force will roll farther than objects with less force, so for your investigation you will roll three different types of sports balls down a ramp and measure how far they travel before stopping. You can find information about each ball in the table below.
Please Please PLEASE! help me I need it less then 2 days
Answers
The mass of the ball is inversely proportional to acceleration of a ball.
What is friction?This question is incomplete but I will try to help you the much I can. Friction is the force that opposes motion. Friction depends on the nature of the surfaces in contact.
When the mass of the ball is large, the acceleration of the ball decreases since mass is inversely proportional to acceleration of a body.
Learn more about acceleration: https://brainly.com/question/2437624
Physics!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What is the formula for calculating distance?
QA: Speed x Time -- Speed/Time -- Time/Speed
Answers
Answer:
x=v.t
The answer: Distance= Speed x Time
And also
Time = Distance/Speed
Speed= Distance/Time