An electron moving along the +x axis enters a magnetic field. If the electron experiences a magnetic deflection in the -y direction, then the magnetic field must have a component along the
+x axis
-x axis
+y axis
-y axis
+z axis
-z axis
Answers
An electron moving along the +x axis enters a magnetic field. If the electron experiences a magnetic deflection in the -y direction, then the magnetic field must have a component along the -z-axis.
Fleming's left-hand rule tells us that a positive charge experiences a magnetic force perpendicular to the plane in which the velocity vector and the magnetic field vector are located when it moves at a velocity v that is perpendicular to the direction of the magnetic field.In this instance, all three vectors are mutually perpendicular.Here, under the circumstances, a negative charge is traveling down the x-axis and is deflected in the -y direction, causing the magnetic field to be along the negative z-axis, or into the screen.Know more about Electrons at:
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Related Questions
What is weight?
O The force an object exerts due to gravity's pull on its mass
O The Mass of an object
O The acceleration of gravity
O The difference between mass and gravity
Answers
Answer:
option A is the right answer
hope it helps
Based on this how many Carbon
Atoms would be on the products
Side
Answers
a 12.5-kg board, 4.00 m long, is being held up on one end by Ahmed. He calls for help in lifting the board, and Judi responds
Answers
F min=61.25N Ahmed is supporting a 12.5 kg, 4.00 m long board on one end. Judi responds to his request for assistance by accelerating the speed of the motion, and is the rate for which velocity varies over time.
Explain what an acceleration is.acceleration is the rate of change in both speed and the direction of velocity over time. When anything moves faster or slower in a straight line, it is said to have been accelerated. So because direction is constantly changing, even motion on the a circle accelerates at a constant pace.
What happens if you speed up?This means that a velocity change can be either an alteration in the speed or direction of motion of an object. Acceleration is the process by which an item alters its direction, speed, or both.
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What is the instantaneous velocity of the bird when ttt = 8.00
ss?
A bird is flying due east. Its distance from a tall building is given by x (t) = 27.0 m+ (11.3 m/s) t – (0.0450 m/s³) t³.
Answers
The instantaneous velocity of the bird at t = 8.00 s is approximately 2.66 m/s east.
To find the instantaneous velocity of the bird, we need to take the derivative of the position function with respect to time. The derivative of the position function gives us the velocity function.
x(t) = 27.0 m + (11.3 m/s) t - (0.0450 m/s³) t³
To find the velocity function, we take the derivative of x(t) with respect to t:
v(t) = d(x(t))/dt
v(t) = d/dt [27.0 m + (11.3 m/s) t - (0.0450 m/s³) t³]
v(t) = (11.3 m/s) - (0.1350 m/s²) t²
Now we can substitute t = 8.00 s into the velocity function to find the instantaneous velocity:
v(8.00 s) = (11.3 m/s) - (0.1350 m/s²) (8.00 s)²
v(8.00 s) = 11.3 m/s - 0.1350 m/s² * 64.00 s²
v(8.00 s) = 11.3 m/s - 8.64 m/s
v(8.00 s) ≈ 2.66 m/s east
Therefore, the instantaneous velocity of the bird at t = 8.00 s is approximately 2.66 m/s east.
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-
Consider the reaction below:
AgNO3 (aq) + HCl (aq) AgCl (s) + HNO3 (aq)
If the reaction releases 68.0 kJ of energy, how many
kilocalories of energy does it release? (1 cal = 4.184 J) (Round
off decimal to nearest tenths)
Answers
Answer: 16.3 kcal
Explanation:
Given that the reaction releases 68 kJ or 68000 J. One cal is 4.184 J. Thus, 68000 J is 16.25 kilocalories.
What is exothermic reaction?An exothermic reaction is the reaction which evolves heat energy to the surroundings. The given reaction is an exothermic double displacement reaction.
The given reaction involves the displacement of nitrate and Cl groups in between silver metal and hydrogen. This reaction releases a heat of 68kJ or 68000 J
given, 1 cal of energy = 4.184 J
hence, 68000 J = 68000/4.184 = 16252 cal
One kilocalorie = 1000 calories
thus, 16252 calories = 16.25 kilocalories.
Therefore, the given reaction, releases 16.25 kilocalories of energy.
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The time it takes to
wake up. Time interval or a time instant? (Please give me the right answer)
Answers
Answer:
Time interval
Explanation:
The amount of time it takes to wake up is a time interval because it has a start and stop time. For example, if someone's alarm goes off at 7AM and they fully wake up at 7:15AM, then the period from 7AM-7:15AM is a time interval.
Global climate and weather patterns are driven by differences in the amount of heat energy in different areas of the Earth. Which statement best explains why different areas of the Earth have different amounts of heat energy?
The Earth receives different amounts of solar energy in different regions.
ocean currents and global wind patterns, which are caused by convection currents, most strongly affect a region's
climate
An area with an average annual temperature of more than 64°F and greater than 59 inches of annual rainfall would be an example of which type of climate?
tropical
Which of the following factors would affect the weather patterns of a region?
all of these
Water cycles from the atmosphere into the hydrosphere through precipitation. Water cycles from the hydrosphere back to the atmosphere through evaporation.
Which of the following is one way that these patterns can effect climate?
Areas located near a large body of water typically receive more precipitation than areas that are not located near water.
Convection currents, which affect weather and climate, are created by
the uneven heating of the Earth.
Which of the following statements best describes global temperature patterns?
The temperature of a specific region tends to change in fairly predictable patterns throughout a day and during the course of a year.
Seasonal changes in water temperature tend to remain within a narrow range. This is opposed to air temperature, which tends to fluctuate across a wide range. The relative stability of ocean temperatures helps to regulate the temperatures of coastal regions. Why can water remain within a narrow range of temperatures?
It has a high heat capacity.
The Sun's energy is critical to the Earth's climate and weather patterns because it drives the water cycle. Which stage of the water cycle is the Sun's energy most critical to?
evaporation
he polar climate zone is the coldest of the three zones. Why is this?
The polar climate zone is located between about 67°N latitude and the North Pole—this latitude zone receives less sunlight than the other two latitude zones.
Weather is a condition of the atmosphere at a particular time and place. Wind, rain, and cloud formations are all forms of weather phenomena. What is the primary source of energy for weather phenomena?
solar radiation
The equator tends to contain regions with hot climates. However, the Rwenzori Mountains, which are located close to the equator, are covered in ice caps. Why is the climate of the Rwenzori Mountains not hot?
Temperatures decrease with elevation
A number of factors work together to create climate. What are the two main factors to consider in determining the climate of an area?
temperature and precipitation
Answers
The best statement that explains why different areas of the Earth have different amounts of heat energy is that "Earth receives different amount of solar energy in different regions " .
In the question ,
it is given that ,
Global climate & weather patterns are driven by differences in amount of heat energy in different areas of Earth .
we have to find the true statement for the given cause .
we know that ;
Different parts in the Earth surface receive different amounts of sunlight . The Sun rays strike the Earth surface most directly at Equator.
that means Near the poles, the Sun rays strike surface at a slant due to which the rays spread over wide area.
The more focused rays are, more energy the area receives, and it will be more warmer .
Therefore , the correct statement to explain given reason is "Earth receives different amount of solar energy in different regions " .
The given question is incomplete , the complete question is
Global climate and weather patterns are driven by differences in the amount of heat energy in different areas of the Earth. Which statement best explains why different areas of the Earth have different amounts of heat energy ?
(a) The solar radiation from the Sun is equally distributed across the Earth at all times.
(b) The gravitational energy from the Sun varies greatly in different regions of the Earth.
(c) The Earth spins at different rates so the rotational energy of the Earth varies.
(d) The Earth receives different amounts of solar energy in different regions
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the question is confusing
Answers
Alpha particles have highest mass.
Alpha particles are most ionising.
Gamma particles are the most penetrating.
Beta particles are negatively charged.
Gamma particles have the highest speed.
Comparing the three types of ionizing radiation-alpha particles have the greatest mass. Alpha particles have approx 4 times the mass of a proton or neutron and 8,000 times the mass of a beta particle. Ionising power of alpha particle is very high due to double positive charge, large mass as compared to a beta particle. Alpha particles can cause multiple ionisations within a very small distance. Beta radiation is more penetrating than alpha radiation. beta radiation can pass through the skin, but it is absorbed by a few cm of tissue of the body or a few mm of aluminum. Gamma radiation is the most penetrating of the three radiations. Alpha particles are positively charged, while beta particles are negatively charged, and gamma radiation is electrically neutral. Gamma rays are similar to visible light but they have higher energy. Gamma rays are emitted along with alpha or beta particles during radioactive decay.learn more about gamma rays here:
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Which component of a controller for an electric motor-driven fire pump can be latched in the operating position to provide for continuous nonautomatic operation of the pump
Answers
The component of a controller for an electric motor-driven fire pump that can be latched in the operating position to provide continuous nonautomatic operation of the pump is the "Manual Run Switch" or "Manual Start Switch."
The Manual Run Switch or Manual Start Switch is a key component of a controller for an electric motor-driven fire pump. It allows the operator to manually initiate and latch the pump in the operating position, enabling continuous nonautomatic operation of the pump.
When the Manual Run Switch is activated, it bypasses any automatic control or starting mechanisms that would typically be triggered by a fire detection system or pressure sensors. Instead, the pump remains in operation as long as the switch is latched in the "on" position. This feature is particularly useful in situations where continuous water supply is required, such as during maintenance, testing, or when additional water pressure is needed for firefighting purposes.
The Manual Run Switch is designed to be easily accessible and prominently labeled on the controller panel. It is typically a large, clearly marked switch or button that can be easily identified and operated by authorized personnel. However, it is crucial to follow proper safety protocols and regulations when using the Manual Run Switch to ensure the safe and effective operation of the fire pump system.
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Newtons laws of motion
Answers
Answer:
Law 1. A body continues in its state of rest, or in uniform motion in a straight line, unless acted upon by a force.
Law 2. A body acted upon by a force moves in such a manner that the time rate of change of momentum equals the force.
Law 3. If two bodies exert forces on each other, these forces are equal in magnitude and opposite in direction.
What adaptation of a cheetah is shown in the image?
a cheetah running
Brown color to blend in with the grass
Long and strong legs to run fast
Spots on the fur to keep warm
Strong sense of smell to catch predators
Answers
The adaptation of a cheetah is shown in the image which shows it running is its long and strong legs to run fast which is denoted as option B.
What is Adaptation?These are the physical and behavioral features which ensures that they survive in their changing environment.
Cheetahs are known to have long and strong legs which is the reason why it runs at a very high speed.
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Answer: Option (B) is correct
Explanation: Hope it helps!
Good luck!
a ____ pressure usually indicates clearing weather or fair weather. a. steadily rising b. constant c. fluctuating d. steadily falling
Answers
A steadily rising pressure usually indicates clearing weather or fair weather.
In general, changes in barometric pressure can be used to predict changes in weather conditions. A rising barometric pressure usually indicates that the weather is clearing up or will remain fair, while a falling barometric pressure often indicates that stormy weather is on the way.
A steadily rising pressure indicates that the air pressure is increasing and the weather is likely to improve or remain stable. In contrast, a steadily falling pressure indicates that the air pressure is decreasing, which could indicate an approaching storm or other atmospheric disturbance. Fluctuating pressure and constant pressure are not necessarily indicative of any specific weather conditions.
So, the correct answer is a. steadily rising.
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A steadily rising pressure usually indicates clearing weather or fair weather.
The pressure is an important factor in predicting weather conditions.
A barometer is used to measure atmospheric pressure and it is typically reported in inches of mercury or millibars.
Changes in atmospheric pressure can provide important clues about the weather conditions that are expected to occur in the near future.
When the atmospheric pressure is steadily rising, it typically indicates that clearing weather or fair weather is on the way.
This is because high pressure systems generally bring with them clear skies and dry air, which can make for pleasant weather conditions.
In contrast, when the atmospheric pressure is steadily falling, it is typically an indication that stormy weather is on the way.
This is because low pressure systems generally bring with them cloudy skies and moist air, which can lead to precipitation and thunderstorms.
A constant pressure may indicate that the current weather conditions are likely to persist for a while.
However, it is important to note that changes in wind patterns or temperature can still affect the weather, even if the pressure remains constant.
Fluctuating pressure can be an indication that weather conditions are likely to change rapidly.
For example, if the pressure is dropping quickly, it may indicate that a storm is approaching.
In summary, understanding the relationship between atmospheric pressure and weather conditions can be helpful in predicting the weather.
A steadily rising pressure usually indicates clearing weather or fair weather, while a steadily falling pressure usually indicates stormy weather.
A constant pressure may indicate that the current weather conditions are likely to persist, while fluctuating pressure can be an indication that weather conditions are likely to change rapidly.
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Any remnant core that has a mass of more than 3.0 solar masses will overcome _____ degeneracy pressure. With no other force to hold up the structure of the core, it will continue to collapse into a singularity.
Answers
Any remnant core with a mass greater than 3.0 solar masses will overcome electron degeneracy pressure, leading to collapse into a singularity. This process is an important step in the formation of black holes.
If a remnant core has a mass of more than 3.0 solar masses, it will overcome electron degeneracy pressure. Electron degeneracy pressure is the force that prevents further collapse in a white dwarf star by the repulsion of electrons due to the Pauli exclusion principle. However, when the mass of the core exceeds 3.0 solar masses, this pressure is no longer sufficient to counterbalance the gravitational force.
At this point, the core will continue to collapse, leading to the formation of a singularity. A singularity is a point of infinite density and gravitational pull, where the laws of physics as we know them break down. This collapse into a singularity is believed to occur during the formation of black holes.
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Which observations most likely led to Jenna’s conclusion?
a change of odor
a decrease in temperature
a change in moisture content
a decrease in mass
Answers
The findings that most likely contributed to Jenna's conclusion were a change in smell. Option A is correct.
What is odor?A fragrance, usually an unpleasant one: The smell of sweaty feet was palpable throughout the space. Our body odor has a big impact on the kinds of scents we enjoy.
The complete question is;
"Jenna pulled out an open bowl of leftover mashed potatoes from the fridge and smelled something different. She discovered that since the potatoes were initially placed there, chemical changes had taken place. Which facts most likely supported Jenna's judgment?
a change of odor
a decrease in temperature
a change in moisture content
a decrease in mass"
The observation that most likely inspired Jenna to draw her conclusion was a change in odor.
Hence, option A is correct.
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Answer:
A change in odor
Explanation:
the
estimated age of the solar sysytem is 4558 million years, with N =
4.558, what is the value of the exponent, n?
Answers
The estimated age of the solar system is 4558 million years,
with N = 4.558.
The exponent n is a number that represents the power to which the base number is raised.
The exponential function is represented as xn, where x is the base and n is the exponent.
The question seeks to determine the value of n given N and the estimated age of the solar system.
The formula for calculating the value of n is:
N = 10n
Taking the logarithm of both sides, we get:
log(N) = log(10n)
Using the rule of logarithm, log(a^b) = b log(a), we can rewrite the equation as:
log(N) = n log(10)
Since log(10) = 1, we have:
n = log(N)
Substituting N with the estimated age of the solar system, we get:
n = log(4.558)
Using a calculator, we find that log(4.558) is approximately 0.6609.
the value of the exponent, n, is approximately 0.6609.
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Data: Magnitude of the charge on the electron = 1.60 × 10-¹9 C How long does it take for a current of 6.0 A to deliver 1.5 x 10¹7 Cu²+ ions in a solution? Assume these ions are the only charged particles moving.
Answers
Answer: maybe read your book
Explanation:
A police car approaches an observer with its siren on at a constant velocity. The observer hears the siren with a frequency of 410 Hz as the car apporaches. After the car has past the frequency drops to 376 Hz. How fast was the police car traveling to the nearest tenth of a meter per second?
Answers
ANSWER:
28.4 m/s.
STEP-BY-STEP EXPLANATION:
Given:
Actual frequency of the sound waves (f) = 376 Hz
Observed frequency (f') = 410 Hz
Speed of sound (v) = 343 m/s
Speed of observer (vo) = 0 m/s
Speed of police car (vs) = ?
We have that the formula of the Doppler effect is the following:
\(\begin{gathered} f^{\prime}=\frac{v+v_o}{v-v_s}\cdot f \\ \\ \text{ We replacing:} \\ \\ 410=\frac{343+0}{343-v_s}\cdot376 \\ \\ 410=\frac{128968}{343-v_s} \\ \\ 410\left(343-v_s\right)=128968 \\ \\ 343-v_s=\frac{128968}{410} \\ \\ v_s=343-\frac{128968}{410} \\ \\ v_s=28.4\text{ m/s} \end{gathered}\)The speed of the police car is 28.4 m/s.
Is the process of science described in this lesson similar to your initial ideas about how science is carried out? Explain why or why not.
Answers
The process of science followed my initial ideas e because it involved experiments.
What is the process of science?The process of science or the scientific method refers to the process which scientists follow in their discovery and explanation of natural phenomena.
The scientific method is given below:
making an observation,develop a hypothesis,making a prediction,conducting an experiment analyzing the resultspropound a lawThe process of science follows my initial ideas about the process of science because I always thought science involved experiments.
In conclusion, the process of science involves making hypothesis and conducting research.
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For a centrifugal compressor, the flow at the exit of the blade (state 2) has a velocity of 250 m/s with an angle of 15 degrees to the wheel tangent (75 degrees to the normal)
Answers
The velocity at the end of vaneless space(state 3) is 965.92 m/s
What is centrifugal compressor?It increases kinetic energy to the airstream using a rotating element and then converts it into potential energy in the form of pressure.
Temperature at state 2, T₂ =T₀ + c/2Cp
Substitute T₀ =450K, c=250m/s, Cp =1005, we get
T₂ =418.90K
From the velocity triangle, sinβ₂ =c₂/v₂
v₂ = 250/sin (90°-75°) = 965.92 m/s
Thus, the velocity at the end of vaneless space is 965.92 m/s.
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Imagine you are riding a horse that is walking around a circle with a radius of 4 m. A friend sits on a walking horse that is 8 m from the center of that same circle. In one rotation, what distance does she travel? If you both complete one rotation in the same time, how does her speed compare to yours?
Answers
The distance covered by the friend is 50.28 m.
The speed of the friend is twice mine.
What is the distance around a circle?The distance around a circle is known as the circumference of a circle.
To calculate the circumference of a circle, the formula below is used:
circumference = 2 * π * r
where;
r is the radius of the circle
π is a constant = 22/7
The circumference of the two circles will be
Circle 1; r = 4 m
Circumference = 2 * 22/7 * 4 m
Circumference = 25.14 m
Circle 2; r = 8 m
Circumference = 2 * 22/7 * 8 m
Circumference = 50.28 m
If the same time is taken to complete both distances, it means that the second horse is moving twice as fast as the first.
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A 1-m3 rigid tank contains 10 kg of water at 160 C. The pressure
in the tank is O 738 kPa O 1618 kPa O 618 kPa O 370 kPa
Answers
The pressure in the tank is 618 kPa.
To determine the pressure in the tank, we can use the ideal gas law equation, which states that the pressure (P) times the volume (V) is equal to the number of moles (n) times the gas constant (R) times the temperature (T). However, in this case, we have water, which is a liquid, and the ideal gas law is not applicable to liquids. Instead, we can use the concept of saturation pressure.
At 160°C, water is in its vapor phase, and we need to find the saturation pressure at this temperature. The saturation pressure of water can be obtained from tables or by using equations specific to the substance. At 160°C, the saturation pressure of water is approximately 618 kPa.
Therefore, the pressure in the tank is 618 kPa.
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If the current delivered in a battery is 1.2 A and the power required for the light is 0.2W, How many volts this power need to be
Answers
23
eat it or not eat it
draw two circuit diagrams showing the correct connection of voltmeter to measure the potential different across a resistor
Answers
In a series circuit, components are connected end-to-end in a single path, so the current flows through each component in turn. And in a parallel circuit, components are connected in multiple paths, so the current can flow through more than one path simultaneously.
1. Series Circuit:
To measure the potential difference across a resistor in a series circuit, follow these steps:
a. Turn off the power source.
b. Connect the positive terminal (red) of the voltmeter to one end of the resistor.
c. Connect the negative terminal (black) of the voltmeter to the other end of the resistor.
d. Turn on the power source.
e. Read the voltmeter to determine the potential difference across the resistor.
2. Parallel Circuit:
To measure the potential difference across a resistor in a parallel circuit, follow these steps:
a. Turn off the power source.
b. Connect the positive terminal (red) of the voltmeter to the node where the resistor is connected to the power source.
c. Connect the negative terminal (black) of the voltmeter to the node where the resistor is connected to the ground or the return path of the circuit.
d. Turn on the power source.
e. Read the voltmeter to determine the potential difference across the resistor.
Remember that the voltmeter should always be connected in parallel with the component (in this case, the resistor) to accurately measure the potential difference.
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A. 7cm
B. 24cm
C. 18cm
D. 63cm
Answers
Answer:
A. 7cm
I hope it helps...
From this information, Jasmine concludes that "fertilizer b" is the best at increasing crop yields. Is Jasmine's conclusion scientifically valid? A. Yes, because "fertilizer b" increased her crop yield. B. No, because the different sections of her land were not equal in area. C. No, because the different sections of her land have different characteristics. D. No, because the crop yields were all equal.
Answers
Answer:
c
Explanation:
i just did this study island and the answer was wrong
A kid pushes a stationary
merry-go-round, creating an
acceleration of 0.135 rad/s^2.
How much time does it take the
merry-go-round to complete
2.00 rotations?
(Unit = s)
Remember: CCW is +, CW is. 1 rev= 2*pi rad
Answers
The merry-go-round takes approximately 29.41 seconds to complete 2.00 rotations.
Given data:
Acceleration (α) = 0.135 rad/\(s^2\)
Number of rotations (θ) = 2.00
To find the time taken (t) for 2.00 rotations, we need to use the formula:
θ = 0.5 * α * \(t^2\)
Rearranging the formula, we get:
\(t^2\) = (2 * θ) / α
Plugging in the given values, we have:
\(t^2\) = (2 * 2.00) / 0.135
\(t^2\) = 29.63
Taking the square root of both sides, we find:
t ≈ √29.63
t ≈ 5.439
Therefore, the time taken for the merry-go-round to complete 2.00 rotations is approximately 5.439 seconds.
Note: It's important to round the final answer to an appropriate number of significant figures, considering the given data. In this case, we have used four significant figures in the final answer.
However, if we want to adhere to the given significant figures in the acceleration (0.135 rad/\(s^2\)), the answer should be rounded to three significant figures. In that case, the final answer would be approximately 5.44 seconds.
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1. If a machine's maximum power rating is 2,000 watts, what is the fastest time for it to do 1,000 JOULES OF WORK? MM (5 Points) 0.5 S 25 ). 1,000 S 2,000,000 S
Answers
Answer:
0.5 sec
Explanation:
What is the formula of snell descartes on the refraction?
Answers
The relationship between the angles of incidence and refraction when a light ray passes across the boundary between two media with differing refractive indices is described by Snell-Descartes law.
Snell's law
n₁sinθ₁ = n₂sinθ₂
In the following equation, n1 and n2 stand for the refractive indices of the two media. θ₁ for angle of incidence (the angle between the incident ray and the normal to the boundary), and θ₂ for angle of refraction (the angle between the refracted ray and the normal to the boundary). Sometimes referred to as Snell-Descartes law, in its mathematical form.
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What type of energy is thermal energy? A. Sound energy B. Chemical energy C. Kinetic energy D. Nuclear energy
Answers
Answer:
kinetic energy
Explanation:
How to get the answer
Answers
Fnet <F1+ F₂ because the net force will include the component of frictional force. Option C.
Forces are balanced when people on both sides of the rope are pulling the same amount in opposite directions. As a result, there is no motion. Balanced forces can cancel each other out. If the forces are balanced, the object will not move. When two forces act in the same direction, they add. Equal forces acting in opposite directions are called equilibrium forces.
Equilibrium forces acting on an object do not change the object's motion. Adding equal forces in opposite directions results in a net force of zero. Balanced forces acting on the same object, but in opposite directions. The net force due to these forces is zero. The sum of the magnitudes of the forces is also equal to the sum of the two forces acting in the same direction.
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