Answer:
Without friction, the equation of motion for a pendulum of length L is,
md2θdt2+mgsin(θ)L=0.
Or for small oscillations, (i.e., sin(θ)≈θ),
md2θdt2+mgθL=0.
Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to this differential equation is,
θ(t)=θ0cos(gL−−√t).
Frictional force adds an additional damping term into the equation of motion,
md2θdt2+λdθdt+mgθL=0,
where λ is a coefficient of kinetic friction.
Assuming an initial angle θ0 and a pendulum that starts at rest, the solution to the damped differential equation is,
θ(t)=θ0e−12λmtcos((gL−λ24m2−−−−−−−−√)t).
(Note: If you would like to consider closed form solutions for large angles, I would recommend consulting the mathematics section. The solutions to that problem are called elliptic integrals of the first kind.)
Friction decreases the total time that a pendulum is in motion.
If we consider a pendulum in motion, in accordance with Newton's law, the pendulum will continue moving unless it is acted upon by an external force.
In the case of the pendulum, the external force that acts on it is the air resistance or friction. As a result of this friction, the pendulum will eventually come to a stop.
In the real world, the surface of objects cause friction which causes moving objects to stop.
Learn more: https://brainly.com/question/18754989
Explain
4. When are chemical
properties observable?
identify the parts of the heart in the corresponding spaces. once you have identified the parts of the heart, label the image provided
Answer:
no image provided to answer
Explanation:
How many types of pollination are there?
Answer: two
Explanation: Although there are many different types of pollinators, there are just two main types of pollination—self-pollination and cross-pollination.
What did belt mean by “ I saw the handiwork…starting with the road itself”
Answer:unsure
Explanation:
unsure
I- what is epitope? II- what is virus? a living organism? why? types of virus? classification of Corona virus. III- what is vaccine? purpose of vaccination? goal, in terms of immunity? what is Pfizer vaccine? how does it work? please I will need your help thanks
Answer:
1.the part of an antigen molecule to which an antibody attaches itself.
2.A virus is an infectious agent that can only replicate within a host organism. Viruses can infect a variety of living organisms, including bacteria, plants, and animals. Viruses are so small that a microscope is necessary to visualize them, and they have a very simple structure.
3. Vaccination is a simple, safe, and effective way of protecting you against harmful diseases
immunity: Protection against a disease
C0VID-19 mRNA vaccines give instructions for our cells to make a harmless piece of what is called the “spike protein.” The spike protein is found on the surface of the virus that causes C0VID-19. First, C0VID-19 mRNA vaccines are given in the upper arm muscle.
Explanation:
True/false: If the earths axis were perfectly vertical at 0 degrees we would not have any seasons
Answer: its true
Explanation:
the seasons are caused because of the tilt. without it, then there are no seasons at all. and because the tilt faces the sun and without that tilt then no seasons
What is the fluid compound of blood
Answer:
The liquid component of blood is called plasma, a mixture of water, sugar, fat, protein, and salts.
Explanation:
gooogle
What process takes place in plant and animal cells that involves chemical reactions with oxygen and releases stored energy? cell division meiosis cellular respiration photosynthesis
Answer:
cellular respiration
Explanation:
I did the test-
C. cellular respiration
Explanation: Becuase yes.
* I got the quiz*
HEYYYYYYYYYY PLEASE HELP!!!!!
Answer:
Velocity
Explanation:
Given the change in positive (direction) over time we are given the velocity formula.
V = Change in direction/Change in time
Since we are given a direction we can rule out speed as well as direction in itself. We can also rule out acceleration because that is the change in Velocity divided by change in time.
How are atoms, elements, and compounds related?
Answer:
Atoms join together to form elements, elements join together to form compounds.
hope this helps <3
what do most organisms contain?
Answer:
Living organisms on Earth are made of a mixture of carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorous. This includes water, which has the chemical name H2O and contains two hydrogen and one oxygen atoms.
**** hope this helps brainly if possible thx!
Explanation:
Which environmental factor would cause the greatest decrease in the number of species of plants and animals living in some of the lakes in the United States?
Global warming
Ozone destruction
Acid rain
Increase in dissolved oxygen levels
What led to the extinction of the Pinta Island tortoises?
Answer:
19th century They were extinct do to Hunting
Explanation:
They were extinct do to Hunting
The thin layer at Earth's surface where life exists is called the
Answer:ma
Ksssmmsma
Explanation:Manama
Am
Replicate the following sequence:
GTA..... TAG.... ATC.....CTC
Answer:
CAT,ATC,TAG,GAG
Explanation:
hope that helps:)
Question 4
2 Points
Suppose the total concentration of potassium (K+) in the cell is 10 times less than the concentration of K+ in the
extracellular fluid. The cell would need to use
to move K+ out of the cell.
A passive transport
B
facilitated diffusion
C) osmosis
D active transport
Answer:
C
Explanation:
Because thex=y so a reverse review is nice to =15
Which would conserve more energy if all humans ate only vegetables or ate only meat
Answer:
There would be more conservation of energy if human beings it only meat.
Explanation:
this is because meat consists of a significant portion of the fat. The amount of of energy that is liberated per molecule of fat is almost twice the amount of energy that is liberated by carbohydrate or protein. As a result of this the total energy consumption will be more if human being consumes only fat. however it takes more time to digest fat as compared to that of carbohydrate and protein.
Answer:
There would be more conservation of energy if human beings it only meat.
Explanation:
This is because meat consists of a significant portion of the fat. The amount of energy that is liberated per molecule of fat is almost twice the amount of energy that is liberated by carbohydrates or protein.
As a result of this the total energy consumption will be more if human being consumes only fat. However, it takes more time to digest fat as compared to that of carbohydrates and protein.
Giving brainliest!!!!!!!!! This is the last question on the test so i bumped up the points ;)
Answer:
D
Explanation:
All living organisms have to have cells
Fill the blacks: ice is ____but has___ hydrogen bonds than liquid water
A- more dense- less
B- none of the thiss
C- less dense- less
D- more dense - less
E- less dense - more
Answer:
e
Explanation:
i took the test
How did flooding lead to an increase in fires in the Mojave Desert, thus decreasing the Joshua tree population?
Answer: Flooding gave rise to more plant material, which became fuel for fires.
Answer:
Flooding gave rise to more plant material, which became fuel for fires.
Explanation:
What is the connection between the liquid state of water and hydrogen bonding?
Answer:
In the liquid state, the hydrogen bonds of water can break and reform as the molecules flow from one place to another. When water is cooled, the molecules begin to slow down. Eventually, when water is frozen to ice, the hydrogen bonds become permanent and form a very specific network.
Explanation:
_____ is an example of transient evidence at the crime scene on Willow Lane.
a wild dog living in the woods behind the house
the bleeding man on the driveway
a hot cup of coffee near the dead body
Answer:
a hot cup of coffee near the dead body
Explanation:
Answer:
C
hot cup of coffee
Explanation:
edge 22
How would the equilibrium change if the ocean became more acidic?
Answer: more H2CO3 is made
Explanation:
Acidic water of the ocean creates instability in the ocean ecosystem.
What happens when ocean become acidic?If the acidity of ocean increases the corals can't build skeletons and the shellfish also can't build the shells which they need for protection.
Corals are particularly important because they provide homes for many other sea creatures so we can conclude that acidic water of the ocean creates instability in the ocean ecosystem.
Learn more about equilibrium here: https://brainly.com/question/517289
as the ball falls back toward the floor, it's____energy increases and its_____decreases
Answer: as the ball falls back toward the floor, it's kinetic energy increases and its gravitational potential energy decreases
Answer:
As the ball falls back toward the floor it’s kinetic energy increases and it’s potential
Explanation:
Warm water rises because it is ............ than cool water.
a) warmer
b) cooler
c) more dense
d) less dense
**Answer and I will give you brainiliest**
Answer:
I'm pretty sure the answer is D.) Less Dense
Explanation:
Answer:
d) less dense
Explanation:
When fluids (liquids and gases) are heated, they expand and therefore become less dense. Any object or substance that is less dense than a fluid will float in that fluid, so hot water rises (floats) in colder water.
What can be told about the age of the fossils in the diagram?
Answer:
I think it is a because the oldest things would be farther down in the ground and the youngest would be upper to the ground if that makes sense
PLEASE I NEED HELP!!! 100 POINTS!!!
Food sample "E" tested positive for which tests?
AIDS is the fifth and most severe phase of HIV infection
Answer:
HIV is the virus that causes Aids
last stage is Full blown stage
What are
"sungrazers"? Why is this a good, descriptive name to use?
Under what circumstances would molecular motion stop?
Answer:
All molecular motion stops at 0 degrees Kelvin or -273.15 degrees Celsius.
Explanation:
It is based on molecular motion, with the temperature of 0K, also known as absolute zero, being the point where all molecular motion ceases. The freezing point of water on the Kelvin scale is 273.15K, while the boiling point is 373.15K