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
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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
What star has the lowest surface temperature
Answer:
Brown dwarf has the lowest temperature
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
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!
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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?
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
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]
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
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;
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The filament is broken in a light bulb. The circuit is now
a. open circuited
b. closed circuited
c. neither closed nor open
Answer:
It is A. Open Circuit.
Explanation:
Filament heats up and produces the light. If the filament breaks, the current does not flow and the circuit will be open. The ammeter will reach zero when this happens.
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
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! :)
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.
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6. An excited dog runs full-speed toward his owner who has just returned home from
school. If he runs north along their driveway for a distance of 45 m and takes 5.2 s to get
there, what is his average velocity?
Please answer in comments with work !!:)
Answer:
v = 8.65 m/s
Explanation:
Given that,
Distance covered by the doge, d = 45 m
Time taken, t = 5.2 s
We need to find its average speed. The total distance covered divided by the total time taken is called the average speed of an object. So,
[tex]v=\dfrac{45\ m}{5.2\ s}\\\\=8.65\ m/s[/tex]
So, the average speed is 8.65 m/s.
when the net force of opposite forces is zero , the forces are
A. not even
B. unequal
C. unbalanced
D. balanced
PLEASE HELP!! NO LINKS OR RANDOM WORDS!! If you were looking at the Moon from space (so that you could see all sides of it), how much of it would be lit by the sun at any given time?
1) All of it
2) Half of it
3) It varies depending on the Moon's phase.
4) It varies depending on the time of the year.
Answer:
3) It varies depending on the Moon's phase.Explanation:
I shall give you the ruler.change to passive
Answer:
The ruler shall be given to you.
I tried but that's basically how it should look.
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
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
pls help me !!! <3333
Answer:
1. Is a different pitch, has a different speed
2. is brighter or dimmer, has a different energy
Explanation:
What is the length of a string with a mass of 2.5 kg, with a
tension of 20 N, if the speed of wave on the string is 2 m/s?
Answer:
.5 m
Explanation:
It is correct lol.
*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.
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 :))
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:
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:
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.
If the work required to speed up a car from 11 km/h to 21 km/h is 6.0×103 J , what would be the work required to increase the car’s speed from 21 km/h to 33 km/h
Explanation:
We need convert the velocities first to m/s and we get the following:
v2 = 21 km/hr = 5.8 m/s
v1 = 11 km/hr = 3.1 m/s
We need to find the mass of the car also for later use do using the work-energy theorem:
[tex]delta \: w = \frac{1}{2} m(v \frac{2}{2} - v\frac{2}{1} )[/tex]
6.0x10^3 J = (0.5) m [(5.8)^2 - (3.1)^2]
or
m = 499.4 kg
Now we determine work needed delta W to change its velocity from 21 km/hr to 33 km/hr
v2 = 33 km/hr = 9.2 m/s
v1 = 21 km/hr = 5.8 m/s
delta W = (0.5)(499.4)[(9.2)^2 - (5.8)^2]
= 1.3 x 10^4 J
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!
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
A car with a mass of 2000 kg accelerates at 6 m/s'at a green light. What is the car's force?
Answer:
Car's force is 12000 N.
Explanation:
→ Force = Mass × Acceleration
→ Force = 2000 kg × 6 m/s²
→ Force = 12000 N