Answers
Gas and plasma are indeed phases of matter, but they have distinct characteristics and applications.
Gas vs plasmaGas is a state of matter where particles have high energy and are free to move around, filling the space they occupy. Gaseous substances, like air, are typically composed of neutral atoms or molecules.
Plasma, on the other hand, is an ionized gas consisting of positively and negatively charged particles. It is formed when gas is heated to extremely high temperatures or exposed to a strong electric field. Plasma is found in stars, lightning, and fluorescent lights, and it also plays a crucial role in technologies like plasma TVs and fusion reactors.
The similarity in names can be attributed to the ionized nature of plasma. In plasma, particles become charged, similar to the positive and negative ions found in the human body's blood plasma. Both terms derive from the Greek word "plasma," meaning "something molded or formed."
This connection may have influenced the choice of naming the ionized state of matter and the component of blood plasma using similar terminology.
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Related Questions
In a certain process a gas ends in its original thermodynamic state. Of the following, which is possible as the net result of the process?
A. It is adiabatic and the gas does 50 J of work.
B. The gas does no work but absorbs so J of energy as heat.
C. The gas does no work but rejects 50 J of energy as heat.
D. The gas rejects 50 J of energy as heat and does 501 of work.
E. The gas absorbs 50 of energy as heat and does 50」ot work.
Answers
Answer:
E. The gas absorbs 50 of energy as heat and does 50」ot work
Explanation:
This is following the law of thermodynamics that energy is neither created nor destroyed
A motorcycle speeds up from 10 m/s to 25 m/s in 5 seconds. What is the
motorcycle's acceleration?
O A. 15 m/s2
O B. -5 m/s2
O C. 3 m/s2
O D. 5 m/s2
Answers
Answer:
C. 3 m/s²
Explanation:
Acceleration is change in velocity over time.
a = Δv / Δt
a = (v − u) / t
a = (25 m/s − 10 m/s) / 5 s
a = 3 m/s²
The amount of energy needed to a power a 0.20kw bulb for one minute would be just sufficient to lift a 2.5 kg object through a vertical distance of
Answers
The amount of energy needed to power a 0.20 kW bulb for one minute would be just sufficient to lift a 2.5 kg object through a vertical distance of approximately 29.03 meters.
To calculate the energy required to lift a 2.5 kg object through a vertical distance, we need to consider the gravitational potential energy formula:
Potential energy (PE) = mass (m) × gravity (g) × height (h)
Where:
m = 2.5 kg (mass of the object)
g = 9.8 m/s² (acceleration due to gravity on Earth)
h = ? (height)
First, let's find the height (h) by rearranging the formula:
h = PE / (m × g)
Now, let's calculate the potential energy (PE) needed to lift the object. We are given that the power of the bulb is 0.20 kW, and we want to find the energy required for one minute. To convert kilowatts (kW) to joules (J), we multiply by the conversion factor of 3,600 (60 seconds × 60 minutes):
Energy (E) = power (P) × time (t)
E = 0.20 kW × 1 min × 3,600 J/kW
Now, we can substitute the values into the equation to find the height:
h = (0.20 kW × 1 min × 3,600 J/kW) / (2.5 kg × 9.8 m/s²)
Calculating the expression on the right side:
h ≈ 0.20 × 1 × 3,600 / (2.5 × 9.8) ≈ 29.03 meters (rounded to two decimal places)
Therefore, the amount of energy needed to power a 0.20 kW bulb for one minute would be just sufficient to lift a 2.5 kg object through a vertical distance of approximately 29.03 meters.
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WHAT IS THE MEAING OF- Grouping Data
Answers
Grouping data refers to the process of categorizing or organizing data based on specific criteria or attributes.
It involves grouping similar data points together to gain a better understanding of patterns, relationships, and trends within the dataset. By grouping data, you can simplify complex information and derive meaningful insights from large amounts of data. The purpose of grouping data is to create subsets or clusters that share common characteristics.
This enables easier analysis, summarization, and comparison of data within each group. Grouping can be performed on various types of data, such as numerical, categorical, or time-based data. Grouping data allows for the exploration of data at different levels of granularity.
For example, you can group sales data by region to analyze regional performance, or group customer data by demographics to identify specific customer segments. This process helps in identifying outliers, detecting patterns, and making data-driven decisions.
Common techniques for grouping data include using functions like GROUP BY in SQL or utilizing data visualization tools to create charts or graphs that illustrate the grouped data. Grouping can be applied in various fields, such as marketing, finance, healthcare, and research, to uncover insights and support decision-making processes.
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E
D
С
B
A
Column
Column
1.
Electron Cloud
B
2
Nucleus
b. A
3.
Electron
CD
4.
Neutron
d.
5.
Proton
ec
Answers
Answer:
1. D electron cloud
2. A nucleus
3. E electron
4. B neutron
5. C proton
Explanation:
electrons are located outside the nucleus. The nucleus holds the protons and neutrons. Protons have a positive symbol (+). electron cloud holds the electrons.
Explanation:
Electron cloud : D
Nucleus : A
Electron : E
Neutron : B
Proton : C
hope this helps you.
Taigas, tundra and tropical rainforests share what common abiotic component?
Answers
Answer:
water
Explanation:
hope this helps
Which of the following is a vector quantity
weight
temperature
acceleration
distance
Answers
Answer:
weight, acceleration
Explanation:
weight = mass x gravity(meaning the direction of the mass)
acceleration = v-u/t
v-u is the change in velocity
Which two statements below are central ideas in the article, "How Gross Is Your Bathroom"?
a. What you can't see might hurt you.
b. Different numbers of bacteria are hiding on various surfaces around your bathroom.
c. Most bacteria are harmless, and some are even good for you.
d. Your bathroom is filled with germs that you might not know anything about, including
viruses and bacteria.
Answers
b. Different numbers of bacteria are hiding on various surfaces around your bathroom.
d. Your bathroom is filled with germs that you might not know anything about, including
viruses and bacteria.
What is the mass of a mallard duck whose speed is 9.1 m/s and whose momentum has a magnitude of 12 kg⋅m/s?
Answers
Answer:
m = 1.31 kg
Explanation:
Given that,
The speed of duck, v = 9.1 m/s
The magnitude of momentum, p = 12 kg-m/s
We need to find the mass of the duck. We know that the momentum of an object is given by :
p = mv
Where
m is the mass of the duck
\(m=\dfrac{p}{v}\\\\m=\dfrac{12\ kg-m/s}{9.1\ m/s}\\\\m=1.31 kg\)
So, the mass of the duck is equal to 1.31 kg.
Weight is best defined as _____. A the amount of space an object takes up B the speed of an object C the force of gravity on an object D the amount of energy in an object
Answers
Weight is best defined as C) the force of gravity on an object.
9
A canoe with a mass of 120 kg is floating downriver at a speed of 2.5 m/s. What is the canoe's kinetic eergy?
Answers
Answer:
K.E. = ½ × mv²
= ½ × 120 × (2.5)²
= 60 × 6.25
= 375 J
Cant get the answer to this question help
Answers
ANSWER:
C
Explanation:
2. For electric circuit shown in Figure find currents in each resistor.
Answers
The current flowing in the 2Ω and 1Ω is 1.14 A and the current flowing in the 3Ω and 4Ω is 0.286 A.
What is the current flowing in each resistor?The value of the current in each resistor is calculated by applying Kirchoff voltage law as follows;
The total voltage in loop 1 is calculated as;
2 + 4 - I₁R₁ - (I₁ - I₂)R₂ - I₁R₃ = 0
6 - 2I₁ - 3(I₁ - I₂) - 1₁ = 0
The current flowing in loop 2 is calculated as;
I = V/R
I₂ = ( 6 V - 4 V ) / (3 + 4)
I₂ = 0.286 A
The value of the current flowing in loop 1 is calculated as;
6 - 2I₁ - 3(I₁ - I₂) - 1₁ = 0
6 - 2I₁ - 3(I₁ - 0.286) - 1₁ = 0
6 - 3I₁ - 3₁ + 0.858 = 0
-6I₁ = -6.858
I₁ = 6.858 / 6
I₁ = 1.14 A
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a body of mass 14kg is raised vertically through a distance of 1.8 m. find the increase in potential energy.( take g=10 m/s^2)
Answers
Answer:
Explanation:
ΔPE = mgΔh = 14(10)(1.8) = 252 J
A roller coaster is at a peak of 20m and has a mass of 900kg. What is the potential energy of the roller coaster?
O 100000 J
10000 J
O 9.8 J
O 176400 J
Answers
The potential energy of the roller coaster is 176,400 J (joules).
The potential energy of an object is given by the formula PE = mgh, where PE is the potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or vertical position of the object.
In this case, the roller coaster is at a peak of 20m and has a mass of 900kg. The acceleration due to gravity, g, is approximately 9.8 \(m/s^2\).
Using the formula, we can calculate the potential energy:
PE = mgh
= (900 kg)(9.8 \(m/s^2\))(20 m)
= 176,400 J
Therefore, the potential energy of the roller coaster is 176,400 J (joules).
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Part A
If the separation between the batter and the ball is 0.71 m and the gravitational force exerted on the batter by the ball is 1.3x10-N , what is the mass of the batter?
Answers
Answer:
the person on the bottom has the answer i was going to put it but he got it first soo ya
Explanation:
If the separation between the batter and the ball is 0.71 m and the gravitational force exerted on the batter by the ball is 13 N have mass 3.13 \(*10^{5}\) kg.
What is force?A force in physics is an effect that has the power to alter an object's motion. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Given that in the question the separation between the batter and the ball is 0.71 m and the gravitational force exerted on the batter by ball is 13 N
F = Gmm/r²
G = 6.67\(*10^{-11}\)N-m²/Kg²
13 N = 6.67\(*10^{-11}\)m²/(0.71)²
m = 3.13 \(*10^{5}\)
The mass of the batter 3.13 \(*10^{5}\) kg.
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Write a note on "Geology".
Answers
Answer:
the science that deals with the earth's physical structure and substance, its history, and the processes that act on it.
Explanation:
Hope that helps
A rocket propels itself with a force of 5000N. Its mass is 500kg. If they rocket stops propelling itself at the 2 minute mark, how long will it take for the rocket to touch the ground(starting from when the rocket lifts off)?
Answers
vf = vi + at
where
vi = initial velocity (m/s)
a = acceleration (m/s^2)
t = time (s)
Since we don't know the initial velocity and we don't know the force of gravity acting on the rocket, we can't find the time it takes for the rocket to touch the ground.
b. A string is wrapped around a pulley of radius 0.05 m and moment of inertia 0.2 kg m2. If the string is pulled with a force F, the resulting angular acceleration of the pulley is 2 rad/s2. Determine the magnitude of the force F.
Answers
Answer:
f = 8 N
Explanation:
Data provided in the question
Radius of the pulley = r = 0.05 m
Moment of inertia = (I) = 0.2 kg.m^{2}
Angular acceleration = ∝ = 2 rad/sec
Based on the above information
As we know that
Torque is
\(= force \times radius\)
\(= f \times r\)
And,
Torque is also
\(= moment\ of\ inertia \times angular\ acceleration\)
\(= I \times \alpha\)
So,
We can say that
\(f \times r = I \times \alpha\)
\(f \times 0.05 = 0.2 \times 2\)
0.05f = 0.4
f = 8 N
We simply applied the above formulas
Can you please help me I’m confused with the negatives
Answers
Given that the mass of the ball, m = 5 kg
The initial velocity of the ball is
\(V_o=6\text{ m/s}\)The final velocity of the ball is
\(V_f=4\text{ m/s}\)We have to find the work done.
The work done can be calculated by the formula,
\(\begin{gathered} W=\text{ change in kinetic energy} \\ =\frac{1}{2}m(V_f)^2-\frac{1}{2}m(V_o)^2 \end{gathered}\)Substituting the values, the work done will be
\(\begin{gathered} W=\frac{1}{2}\times5\times(4)^2-\frac{1}{2}\times5\times(6)^2 \\ =40-90 \\ =-50\text{ J} \end{gathered}\)Thus, the work done will be -50 J
Mention 10 different anti viruses that you know in computer
Answers
Explanation:
McAfee AntiVirus Plus (2017) ←- this one
Symantec Norton AntiVirus Basic
Webroot SecureAnywhere AntiVirus.
Bitdefender Antivirus Plus 2017
.Kaspersky Anti-Virus (2017) ←- this one
Avast Pro Antivirus 2017. ←- BIG NO NO.
Emsisoft Anti-Malware 2017.
ESET NOD32 Antivirus 10
A constant acceleration of 0.25 m/s^2, how long would it take to attain a
speed of 45 m/s at which speed it could liftoff?
Answers
Answer:
180 s
Explanation:
a= v-u/t
0.25=45-0/t
t=45/0.25
t=180 s
what are ionic charges
Answers
Answer:
Ionic charges refer to the electrical charges of ions, which are atoms or molecules that have gained or lost electrons. These charges result from the loss or gain of electrons during chemical reactions.
When an atom loses one or more electrons, it becomes a positively charged ion known as a cation. The cation carries a positive charge equal to the number of electrons lost.
Conversely, when an atom gains one or more electrons, it becomes a negatively charged ion known as an anion. The anion carries a negative charge equal to the number of electrons gained.
The magnitude of the ionic charge depends on the number of electrons gained or lost, which is determined by the element's position in the periodic table and its electron configuration. For example, sodium (Na) loses one electron to become a +1 charged cation (Na+), while chlorine (Cl) gains one electron to become a -1 charged anion (Cl-).
An insect lands 0.1m from the centre of a turn table while the record is turning at 55 rev/min at what linear speed will the insect be carried
collision with the near stationary photograph
Answers
The linear speed will be the insect be 0.5759 meter/second carried collision with the near stationary photograph.
What is speed?
Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.
Given that an insect lands 0.1m from the center of the turn table.
Rotational speed of the turn table = 55 rev/min
= (55×2π/60) rad/second
= 5.759 rad/second.
Hence, the speed of the insect be = Rotational speed × length
= 5.759 rad/second × 0.1 M.
= 0.5759 meter/second.
Therefore, the speed of the insect be 0.5759 meter/second.
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Force varies directly with pressure. A force of 22,000 newtons acts on an object, causing 110 N/m² of pressure. The
force decreases to 18,000 newtons. What is the new amount of pressure caused by the force?
○ 45 N/m²
90 N/m²
O 75 N/m²
60 N/m²
Answers
The final amount of pressure caused by the force is 90 N/m².
Initial amount of force, F₁ = 22 x 10³ N
Initial amount of pressure produced, P₁ = 110 N/m²
Final amount of force exerted, F₂ = 18 x 10³ N
Pressure is defined as the amount of force acting on an object per unit area of the object.
So, we can say that the force and pressure are directly proportional.
F ∝ P
So, F₁/P₁ = F₂/P₂
Therefore, the final amount of pressure caused by the force is,
P₂ = F₂P₁/F₁
P₂ = 18 x 10³x 110/22 x 10³
P₂ = 18/0.2
P₂ = 90 N/m²
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What is the magnitude of the resultant of a 61m north and 21m south vector?
Answers
Answer:
1281
Explanation:
what is the magnitude of the resultant of a 61m north and 21m south vector
Which statement best describes covalent bonding?
A. two nonmetal atoms share electrons between them
B. many atoms give up electrons that can move among the atoms
C. two metal atoms share electrons between them
D. a metal atom transfers electrons to a nonmetal atom
Answers
A bar having a length of 5 in. and cross-sectional area of0.7 m' is subjected to an axial force of 8000N. If the bar stretches 0.002m., determine the modulus of elasticity of the material. The material has linear- elastic behavior.
Answers
Answer:
Explanation:
he modulus of elasticity (E) can be calculated using the formula:Stress = Force / AreaStrain = Change in length / Initial lengthModulus of Elasticity (E) = Stress / StrainWe have the Force = 8000 N, Area = 0.7 m^2, Change in length = 0.002 m and initial length = 5 in = 0.127 mStress = Force / Area = 8000 N / 0.7 m^2 = 11428.57 N/m^2Strain = Change in length / Initial length = 0.002 m / 0.127 m = 0.0157Modulus of elasticity (E) = Stress / Strain = 11428.57 N/m^2 / 0.0157 = 727,279.9 N/m^2So the modulus of elasticity for the material of the bar is 727,279.9 N/m^2This is the ratio of the applied stress to the corresponding strain within the elastic limit, which is a measure of a material's resistance to deformation.
A 15 kg block rest on a surface of a smooth plane incline at an angle 30 degree to the horizontal. A light in extensible string passing over a small Smooth Pulley at the top of the plane connect to the block to another 13/kg block hanging freely. find the acceleration of the resulting motion and the tension in the string.
If the coeficient of kinetic friction between the plane and the 15kg mass is 0.25. find the acceleration of the resulting motion
Answers
The acceleration of the system is 2.77 m/s² and the tension in the string is 127.4 N, given the provided values.
Given: Mass of the first block (m1) = 15 kgMass of the second block (m2) = 13 kgAngle of the plane (θ) = 30°Coefficient of kinetic friction (μk) = 0.25, Acceleration of the resulting motion (a) = ? Tension in the string (T) = ?First, we need to resolve the weight of the first block into its components perpendicular to and along the plane. Then we can use the component parallel to the plane to find the force of friction acting on the first block. We can then use the net force acting on the first block to find its acceleration. Finally, we can use the acceleration of the first block to find the tension in the string.Resolving the weight of the first block into components parallel to the plane: m1gsinθ = 15 x 9.8 x sin30° = 73.5 N. Perpendicular to the plane: m1gcosθ = 15 x 9.8 x cos30° = 127.5 N. Finding the force of friction acting on the first block: μk = coefficient of kinetic friction = 0.25f = force of friction acting on the first block N = normal force acting on the first block N = perpendicular force acting on the first block = 127.5 Nf = μkN = 0.25 x 127.5 = 31.88 NThe net force acting on the first block:F = maF = m1aF = m1g sinθ - fF = 15 x 9.8 x sin30° - 31.88F = 73.5 - 31.88F = 41.62 N. Acceleration of the first block: a = F/m1a = 41.62/15a = 2.77 m/s². Finding the tension in the string: The tension in the string is the force acting on the second block. We can use the weight of the second block and the acceleration of the first block to find the tension.T - m2g = m1aT = m2g + m1aT = 13 x 9.8 + 15 x 2.77T = 127.4 NTherefore, the acceleration of the resulting motion is 2.77 m/s² and the tension in the string is 127.4 N.For more questions on acceleration
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A truck was carrying a substance in a tank. The molecules of that substance were moving away from each other. The truck parked overnight in a place where energy transferred out of the substance. In the morning, the substance was a gas. How were the molecules moving in the morning? Explain why the molecules were moving that way after energy was transferred out of them.
(Make it ask long as you need)
Or (short)
Answers
Answer:
In the morning the molecules were moving away from each other with a smaller speed than when the truck was carrying the substance.
Explanation: