Answer:
Height of the building = 35.78 m
Explanation:
Given that,
The time period of a pendulum is, T = 12 s
We need to find the height of the building. The formula for the time period of a pendulum is given by :
[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]
Where
l is the height of the building
[tex]l=\dfrac{T^2g}{4\pi^2}\\\\l=\dfrac{(12)^2\times 9.8}{4\times 3.14^2}\\\\l=35.78\ m[/tex]
So, the height of the building is 35.78 m.
Please help. Will give Brainlist.
Answer:
No and yes it's like a 30%or 20%
Explanation:
"researchers say that there is no proof that dimples are inherited."
meaning that if the mom or dad had dimples it might have a chance or no since a dominant trait not a recessive trait
Does the law of attraction actually have a basis in physics?
That is correct
There is not answer choices but I think its true
Are you good with compare and contrasting?
If so, look at my recent question please
1200 W, 2000 W, and 720 W devices will be operated on 220 V at the same time. Calculate the current through each device.
Answer:
I₁ = 5.45 A
I₂ = 9.1 A
I₃ = 3.27 A
Explanation:
Electrical power is defined as the product of current and displacement.
[tex]P = VI\\\\I = \frac{P}{V}[/tex]
where,
P = Power of Device
I = current passing through the device
V = voltage across the device = 220 V
FOR P₁ = 1200 W
[tex]I_1 = \frac{1200\ W}{220\ V}[/tex]
I₁ = 5.45 A
FOR P₂ = 2000 W
[tex]I_2 = \frac{2000\ W}{220\ V}[/tex]
I₂ = 9.1 A
FOR P₃ = 720 W
[tex]I_1 = \frac{720\ W}{220\ V}[/tex]
I₃ = 3.27 A
What is a scientific theory?
O Alaw that is always true
O A hypothesis about nature
O An educated guess based on observations
O An explanation of how the natural world works
Answer: An educated guess based on observations
Explanation: A scientific theory is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable accounts of the real world.
Hope This Helps!
Pls Mark Me brainliest
-ur gurl Lizzie
Which statement correctly describes magnetic field lines around a bar magnet?
Answer:A
Explanation:I believe the correct answer would be they join north pole to south pole. The direction of these lines always goes from the direction of north to south pole. These lines forms loops in order to favor the way which requires or has less resistance.
They point away from the north pole and towards the south pole, is the statement correctly describing magnetic field lines around a bar magnet.
What is a bar magnet?A bar magnet is a rectangular section of an item that has permanent magnetic qualities and is made of iron, steel, or any other ferromagnetic material or ferromagnetic composite.
It has two poles, one north, and one south, and when hanging freely, the magnet aligns itself such that the north pole faces the earth's magnetic north pole.
They point away from the north pole and towards the south pole, the statement correctly describes magnetic field lines around a bar magnet.
Hence statement B correctly describes magnetic field lines around a bar magnet.
To learn more about the bar magnet refer to the link;
https://brainly.com/question/708941
For each 1 degree Celsius that temperature incileases, the speed of
sound ___ by 0.6 m/s.
Answer:
A: For each 1 degree Celsius that temperature decreases, the speed of sound decreases by 0.6 m/s. So sound travels through dry, -20 °C air at a speed of 319 m/s
Explanation:
22) Net force is the total of all forces acting on an object. When a force is balanced and the object does not move, the net force is equal to what: A) 0 B) 10 C) 100 D) The weight of the object
Answer:
A) but be sure and read the answer.
Explanation:
If the object does not move at all, (that's an important restriction) the net force = 0. That being so, the acceleration must be 0 as well. But there is no law saying that there cannot be a constant motion and that's why the restriction is important.
Biology of awerness. Based on information in the articale, what is the most likely reason all organisms adapted to havea the trait of awarenes
Answer:
Awareness was selected because it was beneficial to organisms in particular environments.
Explanation:
Based on the article, natural selection is a phenomenon that recognizes and allows traits that are useful to an organism and that would be favorable for it to be passed from one generation to another.
Natural selection marked awareness as a useful trait that would be beneficial for organisms because it helped them adapt well to the particular environments that they found themselves. For example, this ability helped an organism to be able to recognize where it could get food and light in its environment.
Un muelle se alarga 30 centímetros cuando ejercemos sobre el una fuerza de 24 N a) calcula el valor de la constante elástica del muelle b) calcula el alargamiento del muelle al aplicar una fuerza de 60 N
Answer:
(a) k = 80 N/m (b) x = 75 cm
Explanation:
The question says that, "A spring is elongated 30 centimeters when we exert a force of 24 N on it a) calculate the value of the spring constant b) calculate the elongation of the spring when applying a force of 60 N"
Given that,
Force exerted on the spring, F = 24 N
Elongation in the spring, k = 30 cm =0.3 m
(a) We know that, the force on the spring is given by :
F = kx
Where
k is spring constant
So,
[tex]k=\dfrac{F}{x}\\\\k=\dfrac{24}{0.3}\\\\k=80\ N/m[/tex]
(b) When F = 60 N,
[tex]x=\dfrac{F}{k}\\\\x=\dfrac{60}{80}\\\\x=0.75\ m\\\\x=75\ cm[/tex]
Hence, this is the required solution.
a group of engineers have launched a space probe from earth that will land on the surface of Mars. how will the force of gravity from mars affect the space probe?
A) the force of gravity from Mars will not pull on the space probe until it reaches the planets surface.
B) the force of gravity from Mars will stop pulling on the space probe when it reaches the planet
C) the force of gravity from Mars will pull more strongly on the space probe as it gets closer to Mars.
D) the force of gravity from Mars will pull on the space probe the same amount no matter how far away it is
Answer:D
Explanation:
The force of gravity from Mars will pull on the space probe the same amount no matter how far away it is, so option D is correct.
What is gravity?All material objects in the universe are subject to the force of gravity, also known as gravitation. The force of gravity tends to draw any two non-zero mass objects or particles toward one another. Subatomic particles and galaxy clusters are both affected by gravity, as are objects of all sizes.
Due to the law of gravity, or gravitation, which draws all objects with mass in its vicinity toward it, Mars' gravitation is a natural occurrence. Due to the planet's lesser mass, its gravity is weaker than that of Earth. On Mars, the gravitational acceleration fluctuates, but on average it is 3.72076 m/ s² (or around 38% of Earth's).
Therefore, the force of gravity from Mars will pull on the space probe the same amount no matter how far away it is.
To know more about gravity:
https://brainly.com/question/9722860
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When rutherford bombarded thin gold foil with a-particles,he found that some a-particles were deflected through large angles. Which statement explains this deflection?
Answer:
the nucleus of the atom you have conserved almost all its mass in a very small volume
Explanation:
In Rutherforf's experiment, most alpha particles had few deflections, eg a few of them were deflected at small angles, a much smaller number deflected at large angles, and very few were deflected.
The explanation that I found for this is that if all the mass and the positive charge of the atom is in a small volume, they could specifically calculate this the relationship of the volumes,
V_atom / V_nucleo = 10⁴
Therefore, the phrase that explains the observing phenomenon is that the nucleus of the atom has concentrated almost all its mass, very small emolument and in that same volume is all the positive charge of the atoms.
In summary, the phrase that describes the process is:
the nucleus of the atom you have conserved almost all its mass in a very small volume
Deanna stirred a teaspoon of sugar into a glass of warm water. The sugar completely dissolved in the water. Select 3 statements below that are TRUE about the dissolved sugar.
A) The sugar chemically combines with the water to form a new substance
B) The sugar can be separated from the water
C) The sugar molecules are spread out amongst the water molecules
D) The sugar turns into water molecules
E) The sugar melts
F) The sugar and water form a mixture
G) The sugar loses mass
H) The sugar breaks down into the individual atoms that make up sugar
I) The sugar disappears and no longer exists
Please don't give me links for the answers or random words bc i will report u and u will lose points!
Answer:
B, C, F
Explanation:
B: Sugar can be separated from the water by evaporating the water. This will leave large chunks of sugar.
C: Sugar gets spread out among the water.
F: Sugar water is a homogeneous mixture. Can't see the individual components because of the dissolving.
Hoped this helped! :)
If you are on offense but do not have the ball, what should you be doing?
Answer:
try to stay open, dont just stand there, u gotta keep moving around. maybe set a screen for ur teamate so they can get to the basket quickly, but regardless, stay open and stay moving
Explanation:
u talking about basketball right?
What star has the lowest surface temperature
Answer:
Brown dwarf has the lowest temperature
*20 points* will give brainliest!
Comparing Cells
i need to know a few things about the primary function and organelles present in..
protists cells
fungus cells
plant cells
and, animal cells
Answer:
Protists cells: ribosomes, mitochondria, and chloroplasts.
Fungus cells: cell walls, nuclei, mitochondria, endoplasmic reticulum, Golgi apparatus, endosomal vacuoles, various types of vesicles, and peroxisomes.
Plant cells: chloroplast, cell wall, plastids, and a large central vacuole.
Animal cells: nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles.
Answer:
1) Ribosomes: Are the organelles responsible for synthesizing all the proteins the protist will need
Mitochondria: which are the organelles responsible for turning food into energy the cell can use
Chloroplasts, which are the organelles that are able to capture sunlight
____________________________________________________________
2) Mitochondria: Developmental and morphogenetic switches such as hyphal differentiation and biofilm formation, adaptation to stress, cell wall biosynthesis and structure.
Endoplasmic reticulum: harbors several of the enzymes involved in the biosynthesis of ergosterol, an essential membrane component
Golgi apparatus: performs crucial functions in the sorting and processing of proteins destined for secretion
____________________________________________________________
3) Chloroplast: Allow plants to capture the energy of the Sun in energy-rich molecules and carries out the process of Photosynthesis.
Cell wall: The cell wall surrounds the plasma membrane of plant cells, providing structure and protects the plant from mechanical and osmotic stress.
Plastids: responsible for manufacturing and storing of food. These often contain pigments that are used in photosynthesis
Vacuole: Simply helps maintain water balance, usually large and takes up most of the space in a plant cell.
____________________________________________________________
4) Nucleus: Controls and monitors the activities of the cell and carries the genes, structures that contain the hereditary information for their offspring.
Mitochondria: Generates most of the chemical energy needed to power the cell's biochemical reactions.
Endoplasmic reticulum: Serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins.
Golgi apparatus: Helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.
Vesicle: Transport vesicles help move materials, such as proteins and other molecules, from one part of a cell to another
Vacuole: Are generally small and help dispose waste products in the cell.
Ribosomes: Link together specific amino acids to form polypeptides and they export these to the cytoplasm.
8. When a plate cracks, the crack is called a
These faults can store
just like a spring. When
this Is released, you get an
Answer:
an earthquake
Explanation:
the energy is being released
pls help me !!! <3333
Answer:
1. Is a different pitch, has a different speed
2. is brighter or dimmer, has a different energy
Explanation:
how is grounded theiry different from other qualitative research methods?
Answer:
(u mean theory* i think)
Grounded theory differs from either qualitative content analysis or thematic analysis because it has its own distinctive set of procedures, including theoretical sampling and open coding. In contrast, the procedures in the other two are not specified at the same level of detail.
thenks and mark me brainliestt :))
What is the rule you would write describing how light reflects off a mirror?
Answer: The angle of incidence equals the ray of reflection. So this law states that any ray of light that strikes an object will reflect off the object such that the striking or incident angle is identical to the reflecting angle (as measured from the normal).
Explanation:
The speed limit on many roads in a town 13.5 m/s outside schools this is limit is often reduced by one third
calculate the reduced speed limit
Answer:
4.5 m/s
Explanation:
13.5 x 1/3
energy flows from the sun to _______ to consumers and eventually to _______
a. animals, plants
b. omnivores, plants
c. producers, detrivores
d. plants, animals
Answer:
the answer is c. producers, detrivores
Three objects, carrying charges of 4.0 x 10^6 C, 6.0 x 10^6 C, and +9.0 x 10^6 C, respectively, are placed in a line, equally spaced from left to right by a distance of 0.50m. Calculate the magnitude and direction of the net force acting on each charge that results from the presence of the other two
Answer:
[tex]F_1=540*10^{-12} N[/tex]
[tex]F_2=-1080 * 10^{-12} N[/tex]
[tex]F_3=-2268 * 10^{-12} N[/tex]
Explanation:
From the question we are told that
Charge on objects
[tex]Q_1=4.0 * 10^6 C[/tex]
[tex]Q_2= 6.0 * 10^6 C[/tex]
[tex]Q_3= +9.0 * 10^6 C[/tex]
Distance apart [tex]d=0.50m[/tex]
Generally the equation for Force on individual Charge is mathematically given by
For Q_1
[tex]F_1=\frac{d*Q_1Q_2}{r^2}+\frac{ d*Q_1Q_3}{4r^2}[/tex]
[tex]F_1=\frac{k*(4.0 * 10^6 C)(6.0 * 10^6 C)}{0.5^2}+\frac{ d*(4.0 * 10^6 C)( +9.0 * 10^6 C)}{4(0.5)^2}[/tex]
[tex]F_1=540*10^{-12}[/tex]
For Q_2
[tex]F_2= \frac{k}{0.5^2[Q_1 + Q_3]Q_2}[/tex]
[tex]F_2= \frac{k}{0.5^2[4.0 * 10^6 C + 9.0 * 10^6 ]*6.0 * 10^6 C}[/tex]
[tex]F_2=-1080 * 10^{-12} N[/tex]
For Q_3
[tex]F_3=\frac{kQ_3}{r^2[Q_1/4+Q_2}[/tex]
[tex]F_3=\frac{k(+9.0 x 10^6 C)}{(0.5)^2[(4.0 x 10^6 )/4+(6.0 x 10^6 C)}[/tex]
[tex]F_3=-2268 * 10^{-12} N[/tex]
explain why water buckets are narrow at the base and wider at the top
Answer:
This is to optimize storage and transport.
Explanation:
A 80 kg person buys a scale at a mall that reads weight in Newtons and can’t wait to try it out, so they open the scale on an elevator. What would the scale read if the elevator was moving upward at 6.2 m/s2?
Answer:
The scale read 1280 N.
Explanation:
Given that,
The mass of a person, m = 80 kg
We need to find the scale reading when the elevator is moving upward at 6.2 m/s².
We know that, when an elevator moves up, the reading on the scale is given by :
N-mg=ma
N=m(a+g)
Put all the values,
N = 80(6.2+9.8)
= 80(16)
= 1280 N
Hence, the scale read 1280 N.
A racer covers one lap of a 1200 meter track at a speed of 27 meters per second. How long does it take to ride one lap?
Answer:
44.44 seconds
Explanation:
You just do 1200/27
plz help This is for Rock formations...only 5 sentences if not more
For this assignment, consider the processes that create coastal rock formations. While these processes create beautiful and interesting rock formations, they are also often highly destructive. Think for example what could happen to a town that is near the sea and has buildings being exposed to the same forces that create sea cliffs, arches, and stacks. How do you think those buildings stand up against the forces of the waves? Make a discussion posting to describe what you think happens to buildings exposed to sea erosion and then suggest ways that the destruction associated with this force can be stopped for people who live in towns near the coast.
After you make your post, comment on at least one of the posts of your classmates.
plz help This is for Rock formations...only 5 sentences if not more
Answer:
The coastal zone is not a stable and constant environment, but a dynamic place that can change rapidly in response to natural processes such as seasonal weather patterns. Waves, winds, currents, tides and storms are the major forces on the coast.
Explanation:
If two 100 ohms resistors are placed in series, their total resistance is what?
1) 10 000 ohms
2) 200 ohms
3) 100 ohms
4) 50 ohms
Answer:
add the Resistance
2(100)= 200
2) 200 ohms
If two 100 ohms resistors are placed in series, their total resistance will be 200 ohms
What is series combination ?When two or more resistors are connected end to end consecutively , they are said to be connected in series combination .Total resistance in series combination is calculated as the algebraic sum of individual resistances
General formula = R (equivalent ) = R1 + R2 + R3 + .......
let R1 = 100 ohms
R2 = 100 ohms
R(equivalent resistance in series combination )= R1 + R2
R = 100 + 100
R = 200 ohms
If two 100 ohms resistors are placed in series, their total resistance will be b) 200 ohms
learn more about series combination
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When a 0.400 A current flows
across a resistor, the voltage drops
by 42.0 V. What is the resistance?
(Unit = Ohm)
Answer:
105
Explanation:
Trust brother
A bicycle possesses 1000 units of momentum. What would be the bicycle's momentun if,it's velocity is doubled?
Explanation:
p = mv ---> let v --> 2v (velocity is doubled) then
p' = m(2v)
= 2(mv)
= 2p
so the momentum also doubled
please help me
I’m taking a test and I don’t understand this at all
Answer:
4 CM
Explanation:
The dotted car means thats were it started, the car to the right is were it stops. count the lines from the start of the dotted car to the start of the shaded car. hope that helped!