Answer:
Its b
Explanation:
Hope this helps
Answer:
b
Explanation:
5. Harrison claims that waves travel faster when the particles within the medium are farther apart. Is Harrison correct?
A. Harrison is incorrect because particles can force each other to vibrate more easily in elastic materials where particles are closer together.
B. Harrison is incorrect because particles can force each other to vibrate more easily in non-elastic materials where particles are farther apart.
C. Harrison is correct because particles can force each other to vibrate more easily in elastic materials where particles are closer together.
D. Harrison is correct because particles can force each other to vibrate more easily in non-elastic materials where particles are farther apart.
Answer:
सं देश भर भर में नौ महिना अघिदेखि महिना अघिदेखि नै जातीय आधारमा प्रान्त पुगें र नेपाली जनताको लागि फरक छ तर त्यो पनि पाँचै वर्षमा धरासायी भयो पाँचै वर्षमा धरासायी भयो भने हेर्न त्यो पनि हो र स्वार्थी हुन्छ भन्थे यो मेरो पहिलो मृत्यु भएको हो। छ। यो म भने त्यो प्रेम कति
Harrison is incorrect because particles can force each other to vibrate more easily in elastic materials where particles are closer together. So, option A.
What is meant by vibration ?Vibration is a periodic back-and-forth motion of the particles in an elastic body or medium.
Here,
Vibrations occurs when practically any physical system is moved out of its equilibrium condition and is left to react to forces that work to bring it back into equilibrium.
A periodic shift in time is referred to as a vibration. A wave is a regular oscillation in both space and time. The waves propagate from one point to another in a medium.
Most waves travel through different media, and this affects how fast they move.
In general, waves go through solids the quickest and gases the slowest. The reason for this is that while particles in a gas are farthest to one another, those in a solid are closer to one another.
Hence,
Harrison is incorrect because particles can force each other to vibrate more easily in elastic materials where particles are closer together. So, option A.
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Which type of radioactive decay produces the highest-energy radiation?
A. Beta decay
B. Alpha decay
C. Electromagnetic decay
D. Gamma decay
SUBMIT
Help
Answer:
gamma decay
Explanation:
Answer: gamma decay
Explanation: I took the test
A concave mirror forms image of an object thrice in its size on a screen magnification of a mirror gives information about the size of the image relative to the object it is defined as the ratio of size of image to the size of object it is represented by m m size of object size of image =magnification by mirror gives the information about the nature of the image produced by it.
Describe the nature of image formed 2nd if the object X distance from the pole of mirror then find image distance from the pole 3rd if the radius of curvature of mirror is are then write the relation between object distance image distance and focal length of the mirror give one use of concave mirror
The description of the nature of image formed 2nd if the object X distance from the pole of mirror then find image distance from the pole 3rd if the radius of curvature of mirror is are then write the relation between object distance image distance and focal length of the mirror give one use of concave mirror is given below
What is the description of the nature of image formed?A concave mirror is a mirror with a curved, inwardly facing surface. When an object is placed in front of a concave mirror, the mirror will form an image of the object. The nature of the image formed depends on the position of the object relative to the mirror.
If the object is placed at a distance greater than the focal length of the mirror, the image formed will be smaller than the object and will be located behind the mirror. This type of image is known as a virtual image.If the object is placed at a distance less than the focal length of the mirror, the image formed will be larger than the object and will be located in front of the mirror. This type of image is known as a real image.To find the image distance from the pole of the mirror, you can use the mirror equation:
1/image distance + 1/object distance
= 1/focal length.
If the object is X distance from the pole of the mirror, you can substitute this value for the object distance in the mirror equation to find the image distance.
The relationship between the object distance, image distance, and focal length of a concave mirror can be expressed using the mirror equation:
1/image distance + 1/object distance
= 1/focal length.
This equation tells us that the sum of the reciprocals of the object distance and image distance is equal to the reciprocal of the focal length.
Therefore, One use of a concave mirror is as a reflector in a flashlight or car headlight. The concave mirror focuses the light to a point in front of the mirror, creating a bright beam of light that can be directed at a specific location.
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5.
1
Shown above is a wire that is carrying current in a magnetic field. The magnetic field
is coming out the plane of the page.
What is the direction of deflection of the wire?
A) Upwards
B) Downwards
C) To the left
D) To the right
Answer:
The direction of defliection of the site to the left I think ..
The position of a particle in millimeters is given by s=102−23t+t ^2 where t is in seconds. Plot the s-t and v-t relationships for the first 17 seconds. Determine the net displacement Δs during that interval and the total distance D traveled. By inspection of the s-t relationship, what conclusion can you reach regarding the acceleration? Answers: Δ5= mm D= mm
The given position equation of a particle is, s=102−23t+t2Here, t is in seconds.The first derivative of s is its velocity: v = ds/dt - 23 + 2tThe second derivative of s is the particle's acceleration:
The total distance traveled is the sum of all distance travelled in each interval of time: D = ∫|v|dt + ∫|v|dt + ... (From t 0 s to t = 17 s)From the graph of the velocity, the particle is moving to the left and toward the right side. The velocity-time graph is linear, which means that the acceleration is constant and uniform. Hence, the conclusion we can draw is that the particle is moving with uniform acceleration. a = dv/dt = 2The given equations are: s=102−23t+t2v
=−23+2ta
=2Plot of s-t and v-t graphs:
Net displacement (Δs) during the interval of 17 seconds can be calculated as:Δs = s(17) - s(0)Δs
= 102 - (2 × 3² / 2) - (23 × 3) + (17² / 2) - 102Δs
= -4 mmThe particle moves to the left side.
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The expansion of the universe after its origin takes place by a phenomenon called.
The expansion of the universe after its origin takes place by a phenomenon called Big bang
What is Big bang theory ?As the universe widened, it cooled and matter began to form. Neutrons, protons, electrons, anti-electron, photons, and neutrinos were all present in the universe one second after the Big Bang. The Big Bang nucleosynthesis, which took place during the first three minutes of the universe, produced the light elements.
The big bang theory is the most commonly accepted explanation. Learn about the initial explosion and how the universe expanded from the size of an atom to include everything that exists today.
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When a process is said to be at 4 sigma level, what does it
mean? How would you compare it with a process at six sigma level?
(7 points)"
When a process is said to be at a certain sigma level, it refers to its level of process performance or capability.
Sigma (σ) is a statistical term that represents the standard deviation of a process, which measures the variability or spread of data within that process. In the context of process improvement methodologies like Six Sigma, sigma level is used as an indicator of process quality and defect rate.
A process at 4 sigma level means that it exhibits a level of performance where the process variation is such that there are about 6.68 defects per million opportunities (DPMO), or a defect rate of 0.000668%. This level of performance indicates that the process has a relatively higher variability and there is room for improvement to reduce defects and improve quality.
On the other hand, a process at six sigma level represents a higher level of process performance. It means that the process exhibits a very low level of variation, with only about 3.4 defects per million opportunities (DPMO), or a defect rate of 0.000034%. A six sigma level process is considered to be highly capable and aims to achieve near-perfection in terms of quality and minimizing defects.
Comparing a process at 4 sigma level to a process at six sigma level, the key difference lies in the level of process performance and the associated defect rates. A process at six sigma level has significantly lower variation and defect rate compared to a process at 4 sigma level. The six sigma level represents a higher standard of quality and is more reliable and consistent in delivering products or services with minimal defects. The 4 sigma level, while still considered good, has a higher potential for improvement and may benefit from further efforts to reduce variation and defects to achieve higher levels of quality and process capability.
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A 2. 74 kg object and changes velocity by 16. 49 m/s in 16. 19 s. How large of a force acted on the object? Which choice represents the best formula to calculate this answer?
The force on the object is 0.822 N.
Forces affect the motion of objects. They can cause movement. You can also slow down, stop, or change the direction of objects that are already moving. We say that a force changes its velocity because it changes the speed or direction of an object. Remember that acceleration is a change in velocity. F= mdv / dt
So m= 2.74 kg and dv= 16.49-16.19 = 0.30.
If time is 1 second,
F=2.74*0.3
= 0.822N
Therefore, the force on the object is 0.822 N.
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A circuit with a 20 V battery and two 5 Ω resistors in series. What is the current throughout the circuit?
Answer:
dont know
im going back to playing mario kart 8 delux
Explanation:
100 ml de una disolucion 0,5 M de sulfato de cobre II
Answer:
100 ml de una disolucion 05 M de sulfate de vivre
(ii) (a) a 2.80 cm high insect is 1.30 m from a 135 mm focal length lens. where is the image, how high is it, and what type is it? (b) what if / 135 mm?
When a 2.80 cm high insect is positioned 1.30 m away from a lens with a focal length of 135 mm, the resulting image is located 10.07 cm from the lens, has a height of 0.22 cm, and is a virtual and upright image.
(ii) (a) Given:
Object height (h₁) = 2.80 cm
Object distance (u₁) = 1.30 m = 130 cm
Focal length of the lens (f₁) = 135 mm = 13.5 cm
Using the lens formula: 1/f = 1/v - 1/u, where f is the focal length, v is the image distance, and u is the object distance.
Substituting the given values:
1/13.5 = 1/v - 1/130
Solving for v, the image distance formed by the lens:
1/v = 1/13.5 + 1/130
1/v = (10 + 1)/135
1/v = 11/135
v = 135/11 ≈ 12.27 cm
M₁ = -v/u₁
M₁ = -(12.27/130)
M₁ ≈ -0.094
formula: h₂ = |M₁| * h₁
h₂ = |-0.094| * 2.80
h₂ ≈ 0.263 cm
The height of the image (h₂) is approximately 0.263 cm.
Therefore, the image formed by the lens is real, inverted, and has a height of approximately 0.263 cm. It is located at a distance of approximately 12.27 cm from the lens
(ii) (b) If the focal length of the lens is changed to 135 mm (0.135 m), we can repeat the calculations using the new focal length.
Object height (h₁) = 2.80 cm
Object distance (u₁) = 1.30 m = 130 cm
Focal length of the lens (f₁) = 0.135 m = 13.5 cm
1/13.5 = 1/v - 1/130
Solving for v, the image distance formed by the lens:
1/v = 1/13.5 + 1/130
1/v = (10 + 1)/135
1/v = 11/135
v = 135/11 ≈ 12.27 cm
The image distance (v) and the magnification (M) remain the same as in part (a) because the object distance (u₁) and the focal length (f₁) are unchanged. Therefore, the image would still be located at approximately 12.27 cm from the lens, have a height of approximately 0.263 cm, and be real, inverted.
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A car starts from rest, then accelerates at 1.20 m/s^2 for 7.00 s. It hits the brakes, slowing to stop at a rate of -4.25 m/s^2. What is the total time for the problem? (Unit = s) PLEASE HELP!!
Answer:
8.98 secsExplanation:
First part of the journey;
If the car starts from rest, then accelerates at 1.20 m/s^2 for 7.00 s, the total time taken during this period is 7.0s.
But then lets get the velocity v of the car during its first part of the journey.
Using the formula v1 = u1+ at1
v = 0+1.2(7)
v = 8.4m/s
Second part of the journey is when the driver hits the brake and slowing to stop at a rate of -4.25 m/s^2. To calculate the time it takes by the body to decelerates, we will use the equation of motion v2 = u2 + at2
v = final velocity of the car during the second part of the journey
u = initial velocity of the car during the second part of the journey
a = deceleration
t = time taken
Given v2 = 0m/s, u2 = 8.4m/s, a = -4.25m/s²
0 = 8.4-4.25t2
4.25t2 = 8.4
t2 = 8.4/4.25
t2 = 1.98secs
Total time taken for the journey = t1+t2
= 7.0s + 1.98s
= 8.98secs
Visible light occupies what position in the electromagnetic spectrum?
A) between radio and infrared radiation
B) between infrared and ultraviolet
C) between infrared and microwave
D) between ultraviolet and X rays
The position that visible light occupies lies between infrared and ultraviolet region. Option B is correct.
Visible light is a type of electromagnetic radiation that occupies the wavelength range between infrared and ultraviolet radiation. It has a wavelength range of approximately 400-700 nanometers (nm).
Electromagnetic radiation consists of waves of electric and magnetic fields that oscillate perpendicular to each other and travel through space. The electromagnetic spectrum encompasses all types of electromagnetic radiation, including radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
The different types of electromagnetic radiation are distinguished by their wavelength and frequency. Visible light is the only part of the electromagnetic spectrum that is visible to the human eye and is responsible for the colors we see in the world around us.
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"physiological ph," the ph for optimum activity for most enzymes, is a ph equal to about ________.
"Physiological pH," the pH for optimum activity for most enzymes, is a pH equal to about 7.4.
pH is a measure of the acidity or alkalinity of a solution, and it is determined by the concentration of hydrogen ions (H+) present. A pH of 7 is considered neutral, and values below 7 indicate acidity, while values above 7 indicate alkalinity. In the context of physiological processes and enzyme activity, a pH of around 7.4 is generally considered optimal. This pH value is close to the neutral range and is found in various biological systems, such as the human body. Enzymes, which are protein catalysts that facilitate biochemical reactions, often exhibit their highest activity at this pH level. However, it's important to note that some enzymes may have different pH optima depending on their specific function and the environment in which they operate.
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9. A jetliner with an airspeed of 1000 km/hr sets out on a 1500 km flight due south. To maintain a southward direction, however, the plane must be pointed fifteen degrees west of south. If the flight takes 100 min, what is the wind velocity
Given data,Airspeed of jetliner = 1000 km/hr
Distance covered by jetliner = 1500 kmLet u be the velocity of wind.
Therefore, the actual velocity of the jetliner = 1000 + u km/hr.Let the angle of deviation from its southward path be ∅. Therefore, the actual angle at which the plane must travel = (90 - ∅).Now, the horizontal component of the actual velocity of the jetliner can be given as follows:H = (1000 + u)cos(90 - ∅)And, the vertical component of the actual velocity of the jetliner can be given as follows:V = (1000 + u)sin(90 - ∅)From the question, we know that the angle of deviation is 15 degrees west of south. Hence, the actual angle must be (90 - 15) = 75 degrees south-west.Now, we can equate the horizontal component of the actual velocity of the jetliner to the horizontal component of the air velocity to determine the value of u.H = (1000 + u)cos(75)
= 230.9401076758u
= (230.9401076758 - 1000)/cos(75)u
≈ -338.125 km/hr
The wind velocity is approximately equal to -338.125 km/hr. Note that the wind velocity has a negative sign indicating that the wind is blowing in the opposite direction of the jetliner.
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PLs HELP
The gravity in space is the same as the gravity on Earth
True
False
Answer:
false
Explanation:
The gravity in space is not the same as the gravity on Earth
batteries are used to power flashlights the energy stored in batteries is converted to light energy given off by flashlights what happens to the energy as it changes form? A) all of the energy is transformed into light energy. B) some of the energy transforms to thermal energy C) half of the energy is transformed to thermal energy. D) half of the energy is transformed to light energy.
Answer:
some of the energy is transformed to thermal energy
Answer:
some of the energy transforms to thermal energy
Explanation:
The table below describes some methods used to generate electricity. What is method 2?
Coastal areas can produce inexhaustible source of energy. Tidal energy can be best used to generate electricity.
How do we use the sea to make electricity?Wave energy, in which converters harness the power of ocean waves to generate electricity. Oscillating water columns that hold air pockets and drive a turbine are examples of converters; swaying body converters that utilization wave movement; and overtopping converters that take advantage of differences in height.
Which energy is most suitable for coastal development?A renewable energy source is tidal energy. In areas with a significant tidal range—the difference in area between high tide and low tide—in the 20th century, engineers developed methods for utilizing tidal movement to generate electricity.
Question incomplete:The table below describes some methods used to generate electricity. What is method 2?
Energy resource Ideal location Possible problem
1 Volcanic area None anticipated
2 Coast Hazard to shipping
3 Estuary Harm to bird populations
4 Remote area with a river valley Flooding of farmland
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Objects with like charges repel and unlike charges attract. the girl's hair and the comb have ________________.
The girl's hair and the comb have opposite charges. In the given scenario, the statement mentions that objects with like charges repel and unlike charges attract.
This principle is based on the behavior of electric charges, where objects with the same charge (like charges) tend to repel each other, while objects with opposite charges (unlike charges) tend to attract each other.
In the case of the girl's hair and the comb, it is common to observe the phenomenon of static electricity. When the girl's hair is combed with a plastic comb, the friction between the comb and the hair leads to the transfer of electric charges.
The comb becomes negatively charged, acquiring an excess of electrons, while the girl's hair becomes positively charged, with a deficit of electrons. Since the comb and the hair acquire opposite charges, they exhibit an attraction towards each other.
Therefore, the girl's hair and the comb have opposite charges, resulting in an attractive force between them.
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Part of a bird's digestive tract, called a gizzard, is able to break up large chunks of food at an extremely fast rate. It is difficult for
scientists to watch a gizzard functioning in a live bird. How would building a model of a gizzard help a scientist?
A. to analyze how a gizzard works
В.to study bird behavior
C.to determine what type of tissues a real gizzard is made of
D.to watch a gizzard functioning in life
Answer:A:
To analyze how a gizzard works.
Explanation:
How many sulfur atoms are there in 25 molecules c4h4s2?.
It takes 35 J to push a large box 5 m across a floor.
Assuming the push is in the same direction as the
move, what is the magnitude of the force on the
box?
a. 5N b. 7N c. 35 N d. 175 N e. none of
the above
Answer:
7 N
Explanation:
Work = Force * distance
35J = Force * 5 meters Divide by 5
35/5 = Force
7 Newtons = Force
The average wavelength in a series of ocean waves is 15. 0 meters. A wave crest arrives at the shore an average of every 10. 0 seconds, so the frequency is 0. 100 Hz. What is the average speed of the waves?
A wave crest arrives on the shore a median of every 10. zero seconds, so the frequency is 0. one hundred Hz. The average speed of the waves is 1.five m/s.
We are to decide the common pace of the waves.
Using the formula
v = fλ
Where
v is the speed
f is the frequency
and λ is the wavelength
From the given information
f = 0.1 Hz
λ = 15.0 m
∴ Speed of the wave = 0.1 × 15.0
Speed of the wave = 1.5 m/s
Average speed is defined as the total distance traveled by an object divided by the time taken to cover that distance. It is the measure of the average rate at which an object covers a certain distance in a given amount of time. Mathematically, the average speed is expressed as: Average speed = Total distance traveled / Time taken
It is important to note that average speed is not the same as instantaneous speed, which refers to the speed of an object at a particular instant in time. Average speed takes into consideration the entire adventure, while instant velocity only reflects the velocity at a unmarried moment. The unit of measurement for average speed is meters per second (m/s) or kilometers per hour (km/h), depending on the system of measurement used.
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what is the most important skill in basketball? Why?
Answer:
Dribbling. Dribbling is easily the most important skill for any basketball player to master. Without good dribbling and ball handling skills you won't be able to move down the court with the ball, which could mean you'll end up with moving violations instead of points.
Explanation:
Answer:
Trash talking
Explanation:
Causes the other team emotional damage and loss of confidence- ergo they will make mistakes in their play.
10. Scientists try to develop an explanation for what
they see happening in the natural world. What
must be true of any explanation they develop?
A. It must be supported by evidence.
B. It can never be changed.
C. It must be shown to have practical value for
humans.
D. It must be based on information that other
scientists have also gathered.
Answer:
it must be based on information that other scientists have also gathered
Answer:
hope its ok
Explanation:
Science is a way of learning about what is in the natural world, how the natural world works, and how the natural world got to be the way it is. It is not simply a collection of facts; rather it is a path to understanding.so it should contain a logical theory but it can also never be said as the final answer.
so A) OR D) both are correct
You are waiting in line for your favorite ride and carrying a backpack with you that
weighs 20 N. You've been standing in the SAME spot in line for 5 minutes how much
power do you use? Explain your answer.
10. A pitcher in a professional baseball game throws a fastball, giving the baseball
a momentum of 5.83 kg. m/s. Given that the baseball has a mass of 0.145 kg,
what is its speed?
Answer: 40.2m/sec
Work: v=p/m= 5.83kg/0.145k=40.2cm/sec
Temperature of an object is 250 K. Find its temperature in centigrade.
help me in this assignment
Answer:
T = 526°C
Explanation:
Given the following data;
Temperature in Kelvin = 250K
To convert kelvin to centigrade;
Temperature can be defined as a measure of the degree of coldness or hotness of a physical object. It is measured with a thermometer and its units are Celsius (°C), Kelvin (K) and Fahrenheit (°F)
Mathematically, it is given by the formula;
250 = 273 + C
Substituting into the equation, we have;
C = 273 + 250
T = 526°C
The hebrews migrated from an area near the persian gulf to the coast of what other body of water?
Hebrews migrated from an area near the persion gulf to the coast of Meridian sea.
Abraham move his people from Ur near the Persian Gulf to the coast of this body of water.
Who were Hebrews?
According to biblical tradition, the Hebrews are peoples descended from Shem, one of Noah's sons, through Eber, the eponymous ancestor, and Abraham. Gen. 7:22 f., reports that the flood destroyed all life except that in Noah's ark; consequently, the whole human family descended from Noah and his sons: Japheth, Ham and Shem. As yet, not all of the names of eponymous ancestors in the family lines can be identified,1 but some probabilities are listed in Chart 6.
From Shem, through Arpachshad and Shelah came Eber, the eponymous ancestor of the Hebrews, and from his descendants through Peleg, Reu, Sereg and Nahor came Terah, the father of Abram and his brothers Nahor and Haran. It becomes clear that if "Hebrews" are descendants of Eber, then others besides those of Abraham's line would be included (see Gen. 10:25-27).
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Which is an example of a projectile?
An arrow stored in a quiver
A trapeze artist hanging from a swing
A bullet loaded into a gun's chamber
A child jumping off of a swing set
Answer: A child jumping off of a swing set
Explanation: A projectile is any object thrown into the air, so the child is the only thing in the air thats moving.