Heat that is emitted into the environment is harmful. The system's work output is zero.
The movement of mechanical energy from one item to another is referred to as work. Work is measured in the same units as energy since it is a movement of energy: joules (J). The total energy of an object will change as a force is applied to it across a distance. The object's kinetic energy will vary as a result of either acceleration or deceleration. Its potential energy will change, for instance, if it is raised up to a given height while being pulled by gravity.
Hence, sign are used based on the release and absorbed.
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The base T pairs with A, and C pairs with G. If the genetic code is CGA, what would be the matching strand?
TGC
GGG
TAT
GCT
The matching strand for the genetic code CGA would be D. GCT.
In DNA, the base pairs are formed between complementary nucleotides. Adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G).
Given the genetic code CGA, we need to determine the matching strand.
The complementary strand is formed by pairing each base with its complementary base.
For CGA, we have:
C pairs with G
G pairs with C
A pairs with T
So, the matching strand for the genetic code CGA would be GCT.
Thus, in the given example, the matching strand for the genetic code CGA is GCT. This means that on the opposite strand of the DNA double helix, the sequence would be TGC. The complete sequence given TGC GGG TAT GCT represents one side of the DNA double helix, with its complementary strand having the sequence CGA CCC ATA CGA. Therefore, Option D is correct.
The question was incomplete. find the full content below:
The base T pairs with A, and C pairs with G. If the genetic code is CGA, what would be the matching strand?
A. TGC
B. GGG
C. TAT
D. GCT
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The angular momentum of a rotating two-dimensional rigid body about its center of mass G is ______. a. m V_G b. I_G V_G c. m omega d. I_G omega
The angular momentum of a rotating two-dimensional rigid body about its center of mass G is I_Gω. Hence, the correct answer is (d) I_Gω.
Angular momentum is defined as the amount of rotational motion that a body has when rotating about an axis, which is given by L = Iω. Here, I is the moment of inertia and ω is the angular velocity. The moment of inertia is a measure of the object's resistance to rotational motion. It depends on the object's mass and its distribution about the axis of rotation.
The moment of inertia is different for different axes of rotation, but if an object is rotating about its center of mass, then the moment of inertia is minimum, which is denoted by I_G. Therefore, the angular momentum of a rotating two-dimensional rigid body about its center of mass G is given by I_Gω, as stated in option (d).
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A displacement factor with a magnitude of 20 m could have perpendicular component with magnitude of what
The perpendicular component of a displacement factor with a magnitude of 20 m is 20 m as well. When an object moves from its initial position to a final position, the displacement is the straight-line distance between the two positions and the direction of the displacement is from the initial position to the final position.
A perpendicular component is created when the displacement vector is resolved into two components. When a displacement vector is divided into two perpendicular components, the magnitude of each component is found using the Pythagorean theorem. The Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
This theorem is represented mathematically as: a² + b² = c².Where c is the length of the hypotenuse, and a and b are the lengths of the other two sides of the triangle. In this case, the hypotenuse represents the displacement vector, and the two other sides represent the components of the displacement vector that are perpendicular to each other. Therefore, the perpendicular component of a displacement factor with a magnitude of 20 m is 20 m as well.
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Elements : Atoms :: Covalent compounds:____
Answer:
Hcl
Explanation:
Hydrogen and chlorine charge electrons and are non metals while compounds with metals are ionic
If a 5 kg cart is pulled with a net force of 20 Newtons. What is the magnitude, in m/s2, of the acceleration?
Answer:
F=ma
a=F/m=20/5=4 m/s^2
How can a supermassive black hole change an otherwise normal
host galaxy? What do we observe in these situations?
A supermassive black hole's host galaxy can be dramatically impacted in a number of ways. First, due to its powerful gravitational attraction, the galaxy's structure may be disturbed by its influence on the orbits of neighboring stars and gas.
Additionally, the falling debris might cause the creation of an accretion disc surrounding the black hole, which would release strong radiation jets and energetic particles. The interaction of these jets with the surrounding gas can lead to the birth of new stars, changing the galaxy's pace of star formation. Furthermore, the energy generated by these processes has the potential to eject gas from the galaxy, altering its overall gas composition and possibly suppressing star formation.
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Which question characterizes relative motion problems that involve motor boats? a. If the width of the river is X meters wide, then how much time does it take the boat to travel shore to shore? c. Both a and b. b. What distance downstream does the boat reach the opposite shore? d. None of the above.
Answer:
that the correct one is C
Explanation:
In relative motion problems, in this case the boat and the river, with respect to the land and between them, the most common questions are:
* What is the time to cross the river
* How far down does the boat go
* What direction the boat must have to reach the opposite shore
examining the answers we see that the correct one is C
What happens to length of the mercury column if a small amount of water vapor is in the vacuum part?
Answer:
I hope it helped you...please mark as brainliest.....thanks!!!!!!!
Explanation:
Inches of mercury is ideal for vacuum lifting with vacuum cups, as the amount of vacuum required is rarely high. Typical vacuum handling utilizes anything between 15″Hg and 25″Hg. Therefore, “Hg is suitable as a measurement of system performance in this type of operation
The column of mercury employed in a mercury barometer, the height of which (inches of mercury) is used as a measure of atmospheric pressure.
At some point, all water vapour that is found in a vacuum system came from the atmosphere. Consider that air at 25° C and 50% relative humidity contains 12 torrs of water vapour. ... Additionally, any surface will adsorb a certain number of monolayers of water molecules.
Credits:
Vacuum Measurement: A Basic Guide - Fluid Power Journal
Sources of Water Vapor in Vacuum Systems | Normandale ...
A 40kg dog is sitting on top of a hillside and has a potential energy of 1,568 J. What is the height of the hill side?
Answer:
39.2 mExplanation:
The height of the hill side can be found by using the formula
\(h = \frac{p}{m} \\ \)
p is the potential energy
m is the mass
From the question we have
\(h = \frac{1568}{40} = \frac{196}{5} \\ \)
We have the final answer as
39.2 mHope this helps you
Answer: 4.0m
Explanation:
____ is the actual, physical movement of goods and people between two points.
A Logistics
B Communication
C Transportation
D Email
The correct answer is C) Transportation. Transportation refers to the actual, physical movement of goods and people between two points. It involves the movement of raw materials, finished products, and people from one location to another.
The Transportation is a crucial aspect of logistics as it helps in ensuring that goods and people reach their intended destinations on time and in good condition. There are various modes of transportation, including road, rail, water, and air. The choice of transportation mode depends on various factors such as the distance to be covered, the nature of the goods, and the urgency of the delivery. Efficient transportation is essential in ensuring that businesses can operate smoothly and meet the demands of their customers. The actual, physical movement of goods and people between two points is referred to as C) Transportation. This process involves various modes of transport, such as road, rail, air, and sea, to move goods and people from one location to another. It plays a crucial role in the global economy, facilitating trade and connecting people around the world.
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a bus starts to move from rest. if if its velocity becomes 90 km per hour after 8s calculate its acceleration
Answer:
11.25km/h²
Explanation:
Acceleration = Velocity / Time
Acceleration = 90 / 8
Acceleration = 11.25
With all of the electric wires and current running through your house, what direction would a compass point if you were standing in the middle of your room? Why is this? What property of magnetic fields does this demonstrate, and how would the magnetic field lines look in this region?
1) The direction it points depends on the direction of the electric current in the wires.
2) The magnetic field lines in the region would form circles around each individual wire carrying current.
3) This is because of the right-hand rule
Where does the current point?The magnetic field produced by the electric current forms a circular magnetic field around the wire in accordance with the right-hand rule, which is applicable to conventional current flow.
The current's flow direction determines the direction of the magnetic field lines. The curled fingers of your right hand, which is holding the wire with your thumb pointing in the direction of the current flow, would point in the direction of the magnetic field.
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A train traveling at a constant speed rounds a curve of radius 225 m . A lamp suspended from the ceiling swings out to an angle of 14.5 ∘ throughout the curve. What is the speed of the train?
Answer:
\(v = 23.88m/s\)
Explanation:
Given
\(r = 225m\)
\(\theta = 14.5^\circ\)
Required: Determine the speed of the train
To solve this question, we apply the concept of tension.
Let the tension on the cord be T.
Tension is calculated as:
\(T = mg\)
So, the tensions acting on the system are:
\(T*sin(\theta) = \frac{mv^2}{r}\) and
\(T*cos(\theta) = mg\)
Divide the equations by one another
\(\frac{T*sin(\theta)}{T * cos(\theta)} = \frac{mv^2}{mgr}\)
\(\frac{sin(\theta)}{cos(\theta)} = \frac{v^2}{gr}\)
\(tan(\theta) = \frac{v^2}{gr}\)
Make v^2 the subject
\(v^2 = grtan(\theta)\)
Take the square root of both sides
\(v = \sqrt{grtan(\theta)\)
Substitute values for g (9.8), r 225 and \(\theta\) (14.5)
\(v = \sqrt{9.8 * 225 * tan(14.5^\circ)}\)
\(v = \sqrt{9.8 * 225 * 0.2586}\)
\(v = \sqrt{570.213}\)
\(v = 23.88m/s\)
Hence, the trains' velocity is approximately 23.88m/s
Please do it to me thank alot
Answer:
See explanations below
Explanation:
For resistors in series, the will be added for those in parallel, we will take the sum of their reciprocal
A) 3 2ohms resistors in series
Equivalent resistance = 2 + 2 + 2
Equivalent resistance = 6ohms
B) 2 4 ohms resisstors in parallal
1/R = 1/4 + 1/4
1/R = 2/4
R = 4/2
R = 4ohms
Equivalent resistance is 2ohms
C) 4 ohms with in series with 8ohms = 4 + 8
Equivalent resistance = 4 + 8
Equivalent resistance = 12ohms
D) 4 ohms and 2 ohms in parallel is expressed as;
1/R = 1/4 + 1/2
1/R = 1+2/4
1/R = 3/4
R = 4/3
4/3 ohms in series with 6ohms
Equivalent resistance = 4/3 + 6
Equivalent resistance =4+18/3
Equivalent resistance = 22/3 ohms
an object and a screen are separated by 20.00 cm. a convex lens is placed between them, 5.00 cm from the object. in this position it causes a sharp image of the object to form on the screen. what is the focal length of the lens?
Focal length of the lens is 15.00 cm.When a convex lens is placed between an object and a screen, it refracts the light rays to form an image.
The focal length of a convex lens can be calculated using the lens equation: 1/f = 1/o + 1/i, where f is the focal length, o is the object distance, and i is the image distance. Given that the object distance is 5.00 cm, the image distance can be calculated as 15.00 cm using the thin lens formula: 1/f = 1/o + 1/i. Therefore, the focal length of the lens is 15.00 cm. The position and size of the image depend on the distance between the object and the lens, the distance between the lens and the screen, and the focal length of the lens. In this case, the object distance is 5.00 cm and the image distance is 15.00 cm, which means that the lens has a focal length of 15.00 cm according to the thin lens formula: 1/f = 1/o + 1/i. The focal length of a lens is an important parameter that determines its ability to converge or diverge light rays and is used in various applications, including microscopy, photography, and optical communication.
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How much voltage is required to run 0.054 A of current through a 15 resistor? Use AV=IR. A. 2.8 x 10^2 v B. 1.2 V C. 3.6 x 10^-3 v D. 0.81 V
voltage required to run resistor is 0.81 V
Given,
Current I = 0.054 A
Resistance R = 15 Ω
We can calculate the voltage required to run the current using Ohm's law
AV=IRV= I × R
The voltage required is given by
V = 0.054 A × 15 Ω = 0.81 V
Therefore, the option D, 0.81 V, is the correct answer.
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1. Write two important precautions that you took during the connected in parallel?
Answer:
1)The connection should be tight.
2)The wire should be connected at the terminals not in between.
3)clean the ends of the wire by sandpaper.
4)Take the voltmeter and ammeter in proper range.
5)The rheostat should be used of low resistant(about 100).
2. Two metal rods in a factory are oppositely charged and placed
8. 9 cm apart. One rod has a charge of +7. 5 x 10-7 C and the other
has a charge of -5. 1 x 10-5 C. What is the force between the
rods? Is it an attractive or repulsive force?
The force between the rods are -3.486 x 10⁻⁴ N, the two rods are oppositely charged, the force is an attractive force.
What is force?Force is an influence on an object or system that will cause it to undergo acceleration, change in direction or shape, or be deformed. It is the result of an interaction between two bodies, and it is measured as a vector quantity with direction and magnitude. Force can be classified into contact forces, such as a push or pull, and non-contact forces, such as gravitation.
The force between two oppositely charged rods can be calculated using Coulomb's law. Coulomb's law states: F = k(q₁×q₂)/r²
where F is the force, k is a constant, q₁ and q₂ are the charges of the two rods (in coulombs), and r is the distance between the two rods (in meters).
Therefore, the force between the two rods in your example can be calculated as follows:
F = (8.99 x 10⁹ Nm²/C²)(7.5 x 10⁻⁷ C)( -5.1 x 10⁻⁵ C) / (0.09 m)²
F = -3.486 x 10⁻⁴ N
Since the two rods are oppositely charged, the force is an attractive force.
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Each of the 11 body systems:
A. Are interchangeable
B. Depends on others to function
C. performs a single task
D. Is controlled by the lungs
Each of the 11 body systems depends on others to function. So, the correct option is Option B.
The human body is actually an amazing combination of many different systems that work together to keep everything functioning correctly. For example, some systems handle food and energy, while others focus on taking in oxygen and moving it around the body. By learning about the different systems working inside the body, we can understand how everything works together to keep you healthy, growing, and strong. The various systems of our body are interconnected and are dependent upon each other. The circulatory system includes the heart the heart does not beat unless the nervous system including the brain tells the heart to beat. The skeletal system is also connected to our digestive system for an increase in the size and strength of the muscles, bones, and cartilage. It takes all the body systems for the proper growth and development of the human body.
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A Projectile is launched horizontally from a height of 120m. If it lands 300 ft away from where it was launched, how fast was it launched?
The initial speed of the projectile is 18.5m/s
What is a projectile ?Projectile motion is the motion of an object thrown into the air under gravity. Examples of projectiles include a fired bullet, a thrown javelin e t.c
When a projectile is launched horizontal, it's horizontal range is given as R = u(√2h/g)
R = 300ft = 91.44meters
h= 120m
therefore 91.44= u( √ 2×120/9.8)
91.44 = u ( √24.49)
91.44 = 4.95 u
divide both sides by 4.95
u = 91.44/4.95
u = 18.5m/s
therefore the speed of the projectile is 18.5m/s
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A sound wave is produced in a metal cylinder by striking one end. Which of the following occurs as
the wave travels along the cylinder?
a. Its frequency increases
b. It transfers matter
C. It transfers energy
d. Its amplitude increases
Answer:
C. It transfers energy
Explanation:
As the metal cylinder is strike at one end, energy is being transferred.
A wave is a disturbance that transmits energy from one point to another. All waves are prominent for their energy transfer potentials. Waves do not move materials of the medium. The frequency of the wave does not increases same with the amplitude. The most important thing about a wave is the ability to transmit energyThe kind of waves that travel fastest through a long metal rod have
short wavelengths.
long wavelengths.
waves of medium length.
all have the same speed
The kind of waves that travel fastest through a long metal rod have wavelengths that are relatively short.
This is because the speed at which waves travel through a medium is determined by the properties of the medium, such as its density and elasticity. In general, waves with shorter wavelengths are able to travel faster through a given medium than waves with longer wavelengths.
In a long metal rod, the atoms are closely packed together, which makes the rod relatively dense and elastic. This means that waves with shorter wavelengths, such as high-frequency sound waves or electromagnetic waves with short wavelengths (e.g. gamma rays or X-rays), can travel faster through the rod than waves with longer wavelengths, such as low-frequency sound waves or radio waves with long wavelengths.
Therefore, the waves that travel fastest through a long metal rod have relatively short wavelengths.
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Introduction to Physical Science: Tutorial and Asking Questions
This activity will help you meet these educational goals:
. You will ask questions to identify and clarify evidence for an argument.
. You will apply scientific principles to design a process.
Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end
of the activity, write a brief evaluation of your work.
Activity
Spend time observing or thinking about events that involve matter and energy. Which events can you explain? Which
events can't you explain? Now answer the following questions.
Part A
Describe three events that you cannot explain.
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Energy and matter are both conserved within natural processes. It follows that while energy and matter can adopt different forms, they cannot be produced or extinguished. Different types of matter and energy can combine, and energy and matter frequently cycle within a system.
Explain energy.
Energy is the ability to perform tasks. It could appear in numerous different forms, such as potential, kinetic, thermal, electrical, chemical, nuclear, etc. Additionally, there is heat and work, which is energy being transferred from one entity to another.
The most important source of chemical energy for sustaining life is found in food. The three states of matter—liquid, solid, and gas—are essential because matter and energy move in concert along food networks.
An ice cube composed of water, for instance, changes into liquid water when you add energy, and when you add even more energy, it turns into steam. The type of matter and the quantity of matter are the same as in the original cube, but the level of energy may be higher or lower.
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what is the weight of a 45kg box
____ N
The weight of a \(45 kg\) box is \(441.45 N\).
Weight refers to the measure of the force exerted on an object due to the gravitational pull of the Earth.
Given the mass of the box is \(m=45 kg\).
The weight of an object (\(W\)) can be found by multiplying the mass of the object (\(m\)) by the acceleration due to gravity (\(g\)).
So, \(W=mg\).
It is known that acceleration due to gravity, \(g=9.81 m/s^2\).
Hence, the weight of the box, \(W=(45kg)\times (9.81 m/s^2)\).
\(\Rightarrow W=441.45 (kg\cdot m/s^2)\\\Rightarrow W=441.45 N\)
Therefore, the weight of the box is \(441.45 N\).
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a small object is placed between two plane mirrors inclined at an angle of 60° to each other in a dark room how many images are seen explain
Answer:
nothing
Explanation:
bocouse of darkness
a 1000 kg rocket is moving forward at 10m/s in space. a 10,000 n force is applied to the rocket for one second from behind. how fast is the rocket now traveling?
The 10,000 N force is applied to the 1,000 kg rocket for one second, the rocket's final velocity is 20 m/s.
To find the final velocity of the rocket after the force is applied, we need to use Newton's second law of motion, which states: Force = mass × acceleration (F = ma). We'll first find the acceleration and then use that to determine the final velocity.
Step 1: Determine the acceleration.
F = ma, so a = F/m
a = 10,000 N / 1,000 kg
a = 10 m/s²
Step 2: Calculate the final velocity.
Since force is applied for one second, we multiply the acceleration by time (t) to find the change in velocity.
Change in velocity = a × t
Change in velocity = 10 m/s² × 1 s
Change in velocity = 10 m/s
Step 3: Add the change in velocity to the initial velocity.
Initial velocity = 10 m/s
Final velocity = Initial velocity + Change in velocity
Final velocity = 10 m/s + 10 m/s
The rocket is now traveling at 20 m/s.
After the 10,000 N force is applied to the 1,000 kg rocket for one second, the rocket's final velocity is 20 m/s.
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i know you might be like wha? she here is my question. what make a atom? then what makes up that? and on and on. is there a universe of everything?! is science just a part of what is really out there?! are we just a tiny little thing in the whole universe?! well that is it.
Answer:
Yes
Explanation:
An atom is made up of itself. Yes this is crazy but true. So far we have found the universe is everlasting, and the universe is part of itself meaning there nothing outside, except heaven and hell
calculate the frequency of a wave that is traveling at a speed of 3.0 m/s and has a wavelength of 1.2m
Answer:
2.5 Hz
Explanation:
3.0m/s / 1.2 m=2.5 1/s=2/5 Hz
The frequency of a wave with speed of 3.0 m/s and has a wavelength of 1.2m is 2.5 Hz.
What is frequency?The frequency of a wave is the number of cycles per second.
Given the wavelength is 1.2 m and speed v =3.0m/s, then the frequency of the wave is
v =fλ
f = 3 / 1.2
f = 2.5 Hz
Thus, the frequency of the wave is 2.5 Hz.
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Explain how the light behaves with light through a
plastic bulb
Answer:
It's red
Explanation:
Blue light has a shorter distance between wave crests than orange light. Red light has a longer distance between wave crests than blue light.
a mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. it takes 3.1 j of work to compress the spring by 0.13 m . if the spring is compressed, and the mass is released from rest, it experiences a maximum acceleration of 12 m/s2.find the value of the spring constant.
From conservation of energy, the spring constant is of magnitude 367 N/m.
How is Hooke's Law Stated ?Hooke's law state that the extension in an elastic material is directly proportional to the force applied provided that the elastic limit is not exceeded.
Given that a mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. it takes 3.1 j of work to compress the spring by 0.13 m . if the spring is compressed, and the mass is released from rest, it experiences a maximum acceleration of 12 m/s².
The given parameters are;
Extension e = 0.13 mWork done W = 3.1 Jacceleration a = 12 m/s²spring constant k = ?The elastic potential energy = work done = 3.1
1/2ke² = 3.1
1/2 × k × 0.13² = 3.1
0.5k × 0.0169 = 3.1
0.00845k = 3.1
k = 3.1/0.00845
k = 366.86 N/m
k = 367 N/m
Therefore, the value of the spring constant is 367 N/m approximately.
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