Answer:
a) C. 7.5 V
b) A. 2.5 V
Explanation:
First, we find the total resistance of the circuit. A voltage divider circuit is a series circuit. Therefore, its total resistance will be the sum of individual resistances:
[tex]R = R_{1}+R_{2}\\R = 100\ \Omega + 300\ \Omega\\R = 400\ \Omega\\[/tex]
a)
Now, we will apply the voltage divider rule on this circuit to find the voltage across the 300 Ω Resistor (R₂):
[tex]V_{2} = R_{2}\frac{V}{R}\\\\V_{2} = (300\ \Omega)\frac{10\ V}{400\ \Omega}\\\\[/tex]
V₂ = 7.5 V
Therefore, the correct option is:
C. 7.5 V
b)
Now, the voltage across the 100 Ω Resistor (R₁) will be:
[tex]V = V_{1}+V_{2}\\V_{1} = V-V_{2}\\V_{1} = 10\ V - 7.5\ V\\V_{1}=2.5\ V[/tex]
Therefore,the correct option is:
A. 2.5 V
if a circuit has three batteries each would 3 volts how much total voltage is it in the circuit?
how to use a circuit breaker
?
Answer:
circuit breakers work in a similar way to fuses, and also protect the circuit from damage if too much current flows but work in a different way. when circuit breakers detect a surge in current in a circuit, they break the circuit by opening a switch. one type of circuit breaker used instead of a fuse and an earth wire is a Residual Current Circuit Breaker (RCCB)
What's the net fore and gravity
Answer:
Force = Mass x Acceleration. Since the acceleration of gravity is always constant at 9.81 m/s2, the force of gravity is constant as well, according to Newton. If the object is sitting motionless on the ground, then the net force (sum of all forces) acting on it is zero
Explanation:
sorry if it doesn't help
In an experiment, some magnesium ribbon is weighed and its mass is recorded. It is then placed in a crucible and heated. Once hot
enough, it combines with oxygen to form magnesium oxide (Mgo). Observe the data table provided. Explain why the law of
conservation of mass appears violated.
les -
A)
The mass of the magnesium oxide was not calculated correctly.
B)
The mass of the oxygen does not equal the other two substances.
C)
The masses of the products and reactants look like they are equal.
D)
The mass of the magnesium oxide does not add up to the oxygen and
magnesium
Answer:
D. The mass of the magnesium oxide does not add up to the oxygen and magnesium.
Explanation:
The oxygen and magnesium should match the Magnesium Oxide.
Answer:
i agree the answer is (D)The mass of the magnesium oxide does not add up to the oxygen and magnesium
Can someone help me please?
how is a mixture different from a compound
Answer:
Compounds are two or more elements chemically combined in definite proportions by weight.
Mixtures are two or more substances not chemically combined.
Explanation:
Hope this helped Mark BRAINLIEST!!!
Answer:
A mixture can be separated by physical means
Explanation:
Does this graph represent constant or changing speed? How do you know? Find the average speed
name the instrument made on the basis of expansion of heat
Answer:
The instrument is thermometer
How is it that even light precipitation can still cause the collection of large amounts of water.
Answer:
the heat of the light.
Explanation:
no matter the light, there's always heat being produced from it. and heat makes liuqid rise
Can someone help me please? :/
Regular eclipses of the Sun and the Moon are best explained by which of the following?
1: The movement of Earth and the Moon around the Sun
2: The relative masses of the Sun, Earth, and the Moon
3: The different compositions of the Sun and the Moon
4: The rotation of Earth and the Moon on their axes
why do we use a circuit breaker ?
Answer:to protect an electrical circuit from damage caused by excess current from an overload or short circuit.
Explanation:
A 15 kg dog sits at the top of a hill. If the dog possesses 600 J of potential energy,
what is the height of the hill?
Answer:
4.08m
Explanation:
h = PE/mg
h = 600/(15)(9.8)
h = 600/147
h = 4.08m
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friction make non moving objects starts to move
truethere are different types of force which may help them to move
Which state of matter would be described as having low energy, with particles that are fixed in place and their only motion is vibrating? *
1 point
A.Liquid
B.Gas
C.Plasma
D.Solid
What is happening to the water molecules as it changes from ice to liquid water? *
1 point
A.They are losing energy, can’t move only vibrate
B.They are gaining energy, can move and slide past each other
C.They are moving at high speeds and are far from each other
D.They are gaining energy, moving slowly until they evaporate
Which state of matter has the highest energy level and is composed of freely moving charged particles? *
1 point
A.Gas
B.Liquid
C.Plasma
D.Solid
Which model(s) best represents the kinetic energy and particle arrangement of a gas? *
1 point
Captionless Image
A.Diagram A
B.Diagram B
C.Diagram C
D.Diagrams B and C
Which state of matter has the highest energy level and is composed of freely moving charged particles? *
1 point
A.Gas
B.Liquid
C.Plasma
D.Solid
Use the Phase Change Diagram to answer questions 5-10
What phase change process is occurring at #2? *
1 point
A.Vaporization
B.Freezing
C.Melting
D.Condensation
What state of matter is represented by the letter A? *
1 point
A.Plasma
B.Liquid
C.Solid
D.Vapor
What phase change process is occurring at #3 and what is happening in terms of energy? *
2 points
A.Vaporization, energy is added
B.Vaporization, energy is removed
C.Condensation, energy added
D.Condensation, energy is removed
What state of matter is represented by the letter B and what phase change process is happening at #1? *
2 points
A.B is solid, and it is freezing as energy is removed
B.B is liquid, and it is evaporating as energy is removed
C.B is solid, and it is melting as energy is added
D.B is liquid, and it is freezing as energy is removed
What state of matter is represented by the letter C, and what would it change into if enough energy is added? *
1 point
A.Gas, it would change to vapor
B.Liquid, it would change to gas
C.Gas, it would change to plasma
D.Gas, it would change to liquid
What phase change process is occurring at #4? *
1 point
A.Condensation
B.Vaporization
C.Freezing
D.Melting
How does temperature affect the particle arrangement and state of matter of a substance? *
1 point
Captionless Image
A.As temperature increases the energy of particles increases and the substance changes from solid to liquid to gas
B.As temperature increases the energy of particles decreases and the substance changes from gas to liquid to solid
C.As temperature decreases the energy of particles increases and the substance changes from gas to liquid to solid
D.As temperature decreases the energy of particles decreases and the substance changes from solid to liquid to gas
What is the major difference between the solid, liquid, and gas phases of matter? *
2 points
Your answer
Submit
An airplane flies with a constant speed of 620 miles per hour. How far can it travel
in 1/2 hour?
Answer:
310 miles
Explanation:
If an airplane can travel 620 miles in one hour, then to find how far it traveled in half of an hour, divide 620 by 2 (or multiply by 1/2).
620/2= 310 miles in 1/2 of an hour
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)
Answer:
a. bernoulli's principle
b. archimedes' principle
c. pascal's principle
Explanation:
Answer:
Bernoulli - a
Archimedes - b
Pascal - c
A ball has 2 kg*m/s of momentum when thrown with a velocity of 8 m/s outwards. Find the mass of the ball.
Answer:
As, we know momentum = mass × velocity that is p = mv
we have momentum (p) = 2 kg m/s
and velocity (v) = 8 m/s
so substitute values in p=mv
2 kg m/s = m × 8 m / s
m = 2 / 8 kg = 0.25 kg
Therefore, mass of substance is 0.25 kg.
2/8 in fractional form.....
Hope it helps
Please mark me as the brainliest
Thank you
what substance is made of components that are not chemically bonded we call that?
they are right it's mixture
Two forces,one of 12 N and another of 24 N,act on a body in such a way that they make an angle of 90degree with each other.Find the resultant of the two forces
Answer:
26.83 N.
Explanation:
If the angle between two vector is 90°, to get the resultant, we use Pythagoras theorem.
a² = b²+c²......................... Equation 1
Where a = R = Resultant, b = 12 N, c = 24 N.
Substitute these values into equation 1
R² = 12²+24²
R² = 144+576
R² = 720
√R² = √720
R = 26.83 N.
Hence, the result of the two force is 26.83 N.
Answer quick!!! (Edge 2021)
Haley noticed a small spot on her skin that turned out to be skin cancer. Which treatment is her doctor most likely to use?
A) Brachytherapy
B) Superficial external beam radiation therapy
C) Radiopharmaceuticals
D) High Intensity Focused Ultrasounds
The treatment most likely to use is Superficial External bean Radiation Therapy. Then the correct option is B.
What is the electromagnetic spectrum?The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is a packet of energy that travels and spreads out.
It has radio waves, infrared waves, visible light waves, ultraviolet rays, and microwaves.
They possess high energy even to penetrate deep within the material. the electromagnetic spectrum has a longer wavelength and less frequency.
Haley noticed a small spot on her skin that turned out to be skin cancer.
Surgery, radiation, chemotherapy, and hormone therapy can all be used to relieve signs and symptoms.
Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used.
The treatment most likely to use is Superficial External bean Radiation Therapy.
Then the correct option is B.
Learn more about the electromagnetic spectrum.
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An airplane flies with a constant speed of 680 km/h. How far can it travel in
1 hour?
The Law of Conservation states that energy ____ be created of destroyed, but ___
Answer:
Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.
Explanation:
hope this helps
True or False: A tree is an example of an object that contains chemical energy. help!! Please!! True False
Answer:
Is a tree an example of chemical energy?
Take, for example, an apple tree. The tree absorbs light energy from sunlight, converting the light energy into chemical potential energy stored in chemical bonds. The tree uses this energy to build leaves and branches and fruit. ... Then it takes that heat and converts it into motion, or kinetic energy
Explanation:
Which of the following describes how cooling
systems transfer thermal energy?
a. Thermal energy naturally flows from cooler
areas to warmer areas.
b. Thermal energy naturally flows from warmer
areas to cooler areas.
c. Work is done to transfer thermal energy from
warmer areas to cooler areas.
d. Work is done to transfer thermal energy from
cooler areas to warmer areas.
6. Which of the following best describes the situation?
Answer:
D
Explanation:
the man is pull the box that is the force and the box rubbing against the ground causes friction
Electric charge can be built up on what material in the form of static electricity?
A. insulators
B. conductors
C. Semiconductors
D.Superconductors
PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer this correctly!!!! (40pts)
Answer:
Distance
Explanation:
If i'm wrong then eXcUsE mE :')
True or false.
a-
Magnetic force is a force acting from a
distance.
The speed of an object in motion will _____ if the net force acting on it is opposite the direction that the object is moving.
Answer:
Decrease
Explanation: