Standing in front of a fire, we can sense both its heat and its light. How are the light and heat radiated by the fire the same, and how are they different?
a
Both travel as waves, but only light waves are a form of electromagnetic radiation.
b
Heat and light are both forms of electromagnetic radiation, but light waves have higher frequencies.
c
Heat and light are both forms of electromagnetic radiation, but heat waves have higher frequencies.
d
Heat and light are both forms of electromagnetic radiation, but light waves have higher wavelengths
Answers
Heat and light are both forms of electromagnetic radiation, but light waves have higher wavelengths. Option D.
Light and heat are two types of energy that are both emitted as radiation by fire and are referred to as electromagnetic radiation. Both heat and light are emitted by the fire and propagate outward from the source.
Light, like heat, is a form of electromagnetic radiation that propagates through space. Both travels as waves, but only light waves are a form of electromagnetic radiation. Light and heat differ in terms of their wavelengths, with light having higher wavelengths than heat.
The wavelengths of heat waves are longer, making it more difficult for them to penetrate the atmosphere.
However, light waves, on the other hand, have shorter wavelengths, which means they can travel faster and penetrate the atmosphere more effectively.
Hence, the correct answer is option d.
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Related Questions
Comparison of rarefraction and compression
Answers
Answer:
In a longitudinal wave, a compression is a region when the particles are closest together. A rarefaction is an area in a longitudinal wave where the particles are the furthest distant from one another. A compression is a zone where the medium is compressed, while a rarefaction is a region where the medium is spread out.
4 (a) (1) Which lens is a converging lens with the greatest power?
OOIY
回A
B
OD
(ii) The equation that relates the power of a lens to the focallar
Answers
Answer:
Answer
Explanation:
please like and mark be mrain list
How fast do you have to throw a rock straight up so that it never comes back to the asteroid and ends up traveling at a speed of 3 m/s when it is very far away?
Answers
To ensure that a rock never returns to the asteroid and ends up traveling at a speed of 3 m/s when it is very far away, it would need to be thrown with an initial velocity equal to or greater than the escape velocity of the asteroid.
The escape velocity is the minimum velocity required for an object to escape the gravitational pull of a celestial body. In this case, the asteroid's escape velocity would need to be exceeded to ensure the rock never returns and achieves a speed of 3 m/s when far away.
The escape velocity depends on the mass and radius of the asteroid. By calculating the escape velocity using the formula v = \(\sqrt{2 * G * M / r),}\) where G is the gravitational constant, M is the mass of the asteroid, and r is its radius, we can determine the minimum velocity needed.
If the rock is thrown with a velocity less than the escape velocity, it will eventually be pulled back by the asteroid's gravity. However, if it is thrown with a velocity equal to or greater than the escape velocity, it will escape the asteroid's gravitational pull and continue traveling away, eventually reaching a speed of 3 m/s when far away.
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What does it mean when the wave
crests of a transverse wave move
closer together?
A. The amplitude is getting bigger.
B. The amplitude is getting smaller.
C. The wavelength is getting smaller.
D. The wavelength is getting bigger.
Answers
When the wave crests of a transverse wave move closer together it means the wavelength is getting smaller.
Briefing :The wavelength of a transverse wave is the distance from one peak to the next or from one dip to the next. The wavelength gets shorter as the crests or troughs get closer together. The wavelength increases as the distance between the crests and troughs increases.
How wavelength affect a transverse wave?One way to gauge the size of waves is by their wavelength. It is the separation of two matching waves' neighboring points. In a transverse wave, the medium's particles vibrate up and down perpendicular to the wave's path of propagation. A longitudinal wave's wavelength can be calculated as its length. A crest and a trough make up a transversal. The largest upward displacement is at the crest, while the maximum downward displacement is at the dip.
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Answer:
C. The wavelength is getting smaller.
Explanation:
Patrick walks 70 m south in 150 seconds. He then walks 20 meters east in 30 seconds. What is his average velocity for the trip?
Group of answer choices
0.35 m/s southeast
0.27m/s southeast
0.41 m/s southeast
0.66 m/s southeast
Answers
Patrick's average velocity for the trip is 0.41 m/s along southeast.
What is velocity?The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.
Resultant displacement of Patrick = √(70² +20²) meter southeast
= 72.801 meter southeast.
Total time interval = 150 second + 30 second = 180 second
Hence, his average velocity for the trip is = resultant displacement/ Total time interval
= 72.801 meter ÷ 180 second
= 0.41 m/s along southeast
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What observational evidence supports the idea that mercury once shrank by some 20 kilometers in radius?
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According to Newton's law of inertia, what must happen in order for an object's motion to change?
Answers
Answer:
Explanation:
there must be a cause—which is a net external force—for there to be any change in velocity, either a change in magnitude or direction.
an object is moving on a horizontal frictionless surface. if the net force applied to the object in the direction of motion is doubled, the magnitude of the acceleration of the object is
1. halved
2. doubled
3. unchanged
4. quadrupled
Answers
Answer:
doubled
Explanation:
F=ma1----------(1)
2F = ma2-------(2)
Divide 2nd equation by 1st one
we get a1×2=a2
2. doubled
What is Force?A force can cause an object with mass to change its velocity, i.e., to accelerate.
\(F=m*a\)
Given:
\(F=m*a_1\)..............(i)
\(2F = m*a_2\)...........(ii)
On dividing equation (ii) by (i)
\(\frac{2F}{F} =\frac{m*a_2}{m*a_1} \\\\2=\frac{a_2}{a_1} \\\\a_1=2*a_2\)
Thus, the magnitude of the acceleration of the object is doubled. Therefore, correct option is 2.
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average method and it reports the tollowing unit data tor the rorming department. Units completed in the torming department are transferred to the painting department. Production cost information for the forming department follows. . Calculate the equivalent units of production for both direct materials and conversion for the Forming department. o. Calculate the costs per equivalent unit of production for both direct materials and conversion for the Forming department c. Using the weighted average method, assign costs to the forming department's output-specifically, its units transferred to painting and its endina work in brocess inventorv. Calculate the costs per equivalent unit of production for both direct materials and conversion for the For Jsing the weighted average method, assign costs to the forming department's output-specifically, its 4 d its ending work in process inventory. Complete this question by entering your answers in the tabs below. Calculate the equivalent units of production for both direct materials and conversion for the forming department. a. Calculate the equivalent units of production for both direct materials and conversion for the Forming departm b. Calculate the costs per equivalent unit of production for both direct materials and conversion for the Forming c. Using the weighted average method, assign costs to the forming department's output-specifically, its units tra and its ending work in process inventory. Complete this question by entering your answers in the tabs below. Calculate the costs per equivalent unit of production for both direct materials and conversion for the forming department Required information Using the weighted average method, assign costs to the forming department's output-specifically, its units trar painting and its ending work in process inventory.
Answers
Given information: The average method reports the following unit data for the forming department. Units completed in the forming department are transferred to the painting department. Production cost information for the forming department follows.
Direct materials:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Direct materials cost = $202,500
Conversion costs:
Units completed during the period = 45,000 units
Ending work in process inventory = 5,000 units
Conversion cost = $189,000
a. Calculation of equivalent units of production for both direct materials and conversion for the forming department:
Equivalent units of production = Units completed during the period + (Ending work in process inventory * Degree of completion)
Direct materials:
Equivalent units of production = 45,000 + (5,000 * 50%) = 47,500 units
Conversion costs:
Equivalent units of production = 45,000 + (5,000 * 60%) = 48,000 units
b. Calculation of the cost per equivalent unit of production for both direct materials and conversion for the forming department:
Cost per equivalent unit of production = Total cost for the period / Equivalent units of production
Direct materials:
Cost per equivalent unit of production = $202,500 / 47,500 units = $4.26 per unit
Conversion costs:
Cost per equivalent unit of production = $189,000 / 48,000 units = $3.94 per unit
c. Calculation of the cost assigned to the forming department's output using the weighted average method:
Total cost = Cost of units transferred out + Cost of ending work in process inventory
Cost of units transferred out = Number of units transferred out * Cost per equivalent unit of production
Cost of ending work in process inventory = Number of units in ending work in process inventory * Cost per equivalent unit of production
Direct materials:
Cost of units transferred out = 40,000 * $4.26 per unit = $170,400
Cost of ending work in process inventory = 5,000 * $4.26 per unit = $21,300
Total cost = $170,400 + $21,300 = $191,700
Conversion costs:
Cost of units transferred out = 40,000 * $3.94 per unit = $157,600
Cost of ending work in process inventory = 5,000 * $3.94 per unit = $19,700
Total cost = $157,600 + $19,700 = $177,300
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why does the electric force dominate at the atomic scale while the gravitational force dominates on the large scale that includes the solar system and beyond?
Answers
The electric force dominate at the atomic scale while the gravitational force dominates on the large scale that includes the solar system and beyond because atomic particles have too little mass for gravitational attraction to complete with electric forces, and at large distances, individual charges have essentially no effect since overall, atoms are electrically neutral.
What is the electric force?Electric force is described as the repulsive or attractive interaction between any two charged bodies.
Electric forces are dominant in the binding together of atoms which is made up of positively charged nuclei and negatively charged electrons. Gravity on the other hand holds the sun, the solar system, and the galaxy together.
Gravitational force is known to be the weakest, and yet the most pervasive, of the four basic forces and it acts on all forms of mass and energy and thus acts on all subatomic particles, including the gauge bosons that carry the forces.
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How do you think organisms capture and store energy? How do you think organisms use and release this energy?
Answers
what is the magnitude of velocity for a 1500 kg car possessing 4500 kgm/s of momentum?
Answers
HEY can anyone tell me the Atomic Mass of Helium and also what ever the number u get pls round it!!
Answers
Answer:
Hey!
Your answer is that the ATOMIC MASS of Helium is 4 u ROUNDED to 2 decimal places!
Explanation:
The precise amount is 4.002602 u.
I HOPE THIS HELPED YOU! :Dwhat are the most elements on the periodic table
Answers
Answer: metals
Explanation:
A student is using a sound machine to produce the sound waves presented in the data table below. How could the student manipulate the sounds to make them match in pitch but make sound wave #1 louder than sound wave #2?
Answers
Answer: Make the frequency higher for number 1 and have the same amplitude.
Explanation: Wavelength and frequency are directly related so if you change one of those then you can't keep the other one the same. You would need to raise the frequency which would make 1 louder and keep amplitude the same for both so that 1 is louder.
To make the sounds match in pitch while making sound wave 1 louder than sound wave 2 : Increase the frequency for wave #1 while setting their amplitudes at the same value
The wavelength of a sound wave is inversely proportional to its frequency therefore when the frequency of wave 1 is increased its wavelength decreases with equal proportion.
Since the increase in frequency results to a decrease in wavelength. therefore to make wave 1 louder, both waves we will have to set the amplitude values of the waves at the same amplitude.
Hence we can conclude that to make the sounds match in pitch while making sound wave 1 louder than sound wave 2 ; Increase the frequency for wave #1 while setting their amplitudes at the same value.
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if an nfl football has a mass of 430 g. what is the velocity of the system after the catch? assume both are moving to the right, and round your answer to two decimal points.
Answers
To determine the velocity of the system after the catch, we need to consider the concept of momentum conservation. The momentum of an object is the product of its mass and velocity.
Given that the mass of the NFL football is 430 g, we need to convert it to kilograms:
Mass = 430 g = 0.43 kg
Let's assume the football is caught by a receiver who is also moving to the right. Since both the football and the receiver are moving in the same direction, their velocities will have the same sign.
The momentum before the catch is zero since the football is in motion and the receiver is stationary. After the catch, the momentum of the system should still be zero to conserve momentum.
Using the equation for momentum:
Momentum = Mass × Velocity
Since the momentum before the catch is zero, the momentum after the catch should also be zero. Therefore, the product of the mass and velocity of the football and the receiver should sum up to zero.
0 = (Mass of football × Velocity of football) + (Mass of receiver × Velocity of receiver)
Given the mass of the football and assuming the mass of the receiver is unknown, we cannot determine the exact velocity of the system after the catch without additional information.
Therefore, without the mass or velocity of the receiver provided, we cannot calculate the velocity of the system after the catch.
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PLEASE HELP!!!!!!!!
An object's mass increases, multiplied by a factor of 6. What factor would its Kinetic Energy increase by?
Answers
Answer:
6 also
Explanation:
Since Kinetic Energy and mass are directly proportional, as one increases, the other will increase with the same magnitude
The efficiency of a machine is always equal to or greater than 1 (True False)
Answers
Answer: False.Machine efficiency is a measure of how much work is produced by a machine compared to how much energy is required to operate the machine.
The ratio of useful output work divided by the total input work is known as machine efficiency. This number is frequently expressed as a percentage (100 x work output / work input).Example:
For example, if you lift a 50-pound weight 10 feet in the air using a pulley, the work done is 500 foot-pounds. However, if it took 600 foot-pounds of energy to lift the weight, the pulley system's efficiency would be calculated as follows: 500/600 = 0.83 or 83 percent.
The efficiency of a machine is always less than one, in general. It is defined as the ratio of output energy to input energy. Because of losses due to friction and other variables, the output energy is always less than the input energy. As a result, the efficiency of a machine is always less than one.Answer: False.
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  do batteries produce or make energy
Answers
Answer:
Batteries are intended to store chemical energy and then it converts into electricidal energy. So overall, batteries produce energy.
Explanation:
a 15 kg object collides with a 2 kg object that is traveling to the right at 1 m/s. after the collision the 15 kg object is traveling to the right at 2.53 mis and
the 2 kg object is traveling to the right at 4.53 m/s. how fast and in what direction was the 15 kg object initially traveling?
Answers
The 15 kg object was initially traveling to the right at approximately 2.93 m/s.
How fast and in what direction was the 15 kg object initially traveling?To determine the initial velocity of the 15 kg object, we can apply the principle of conservation of linear momentum. The total momentum before the collision is equal to the total momentum after the collision.
Let's denote the initial velocity of the 15 kg object as v1 and the final velocity of the 2 kg object as v2.
The initial momentum before the collision is given by:
Momentum initial = (mass_1 * velocity_1) + (mass_2 * velocity_2)
After the collision, the final momentum is given by:
Momentum final = (mass_1 * final_velocity_1) + (mass_2 * final_velocity_2)
Using the given information, we have:
mass_1 = 15 kg
mass_2 = 2 kg
velocity_2 = 1 m/s
final_velocity_1 = 2.53 m/s
final_velocity_2 = 4.53 m/s
Setting the initial momentum equal to the final momentum:
(mass_1 * v1) + (mass_2 * velocity_2) = (mass_1 * final_velocity_1) + (mass_2 * final_velocity_2)
Substituting the values:
(15 kg * v1) + (2 kg * 1 m/s) = (15 kg * 2.53 m/s) + (2 kg * 4.53 m/s)
Simplifying the equation:
15v1 + 2 = 37.95 + 9.06
15v1 = 37.95 + 9.06 - 2
15v1 = 44.01
v1 = 44.01 / 15
v1 ≈ 2.93 m/s
Therefore, the 15 kg object was initially traveling to the right at approximately 2.93 m/s.
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If 345 million votes were cast in the election between Richardson and Jefferson, and Jefferson won by 3,500,000 votes, what percent of the votes cast did Jefferson win? A) 51.1 B) 50.5 C) 49.5 D) 48.9
Answers
The percentage of votes that Jefferson won is:Percentage = (Votes won by Jefferson / Total votes cast) × 100%Percentage = (3,500,000 / 345,000,000) × 100%Percentage = 1.0145 × 100%Percentage = 50.5%Therefore, the answer is B) 50.5.
If 345 million votes were cast in the election between Richardson and Jefferson, and Jefferson won by 3,500,000 votes, the percent of the votes cast that Jefferson won is 50.5%.Here's the explanation:Jefferson won by 3,500,000 votes. Therefore, the total number of votes cast for Jefferson was:
345,000,000 + 3,500,000
= 348,500,000 (total number of votes cast for Jefferson).The percentage of votes that Jefferson won is:Percentage
= (Votes won by Jefferson / Total votes cast) × 100%Percentage
= (3,500,000 / 345,000,000) × 100%Percentage
= 1.0145 × 100%Percentage
= 50.5%Therefore, the answer is B) 50.5.
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Although not limited by the nec®, if a 15-amp residential circuit is to be loaded only up to its rating, how many outlets can be put on the 120-volt circuit if the outlets are rated at 120 va per outlet?
Answers
Either 15- or 20-amp receptacles can be powered by a 20-amp circuit. Receptacles connected to a branch circuit with a 30 amp rating.
An electric circuit is a path that current can travel. An electric circuit is made up of a battery or generator, an apparatus that provides power to the charged particles that make up the current, an apparatus that uses the current, such as a lamp, an electric motor, or a computer, and the connecting wires or transmission lines. Two fundamental laws that quantitatively describe the operation of electric circuits are Kirchhoff's laws and Ohm's law. Circuits in parallel and series. Electric circuits can be divided into a number of categories. Direct current only flows in one direction in a circuit. An alternating-current circuit transmits current that pulses back and forth repeatedly every second, much like the majority of domestic circuits.
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Because of a higher moisture content, air is better conductor of charge in the summer than in the winter. Would you expect the shocks from static electricity to be more severe in summer or in winter
Answers
Answer:
Explanation:
It will be more severe during Winter compared to summer because more charges can be accumulated before electric discharge takes place.
anyone know the answer ?
Answers
Yes. Many people either know the answer, or can figure it out using the information in the picture.
a.
Study harder than everyone else
c.
Learn faster than other students
b.
Study more often than everyone else
d.
Make studying part of their daily routine
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
d one
Explanation:
d one frome my site
Answer:
d
Explanation:
d
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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If an electron is released at the equator and falls toward earth under the influence of gravity, the magnetic force on the electron will be toward the
Answers
The magnetic force on the electron will be west. Example: If it is dropped above the equator in Africa, the electron will head towards North America.
Find the tension in each cable supporting the 512-N cat burglar. Assume the angle theta of inclined cable is 33.0°.)Inclined cable ______NHorizontal cable _______NVertical _______N
Answers
a)The tension in each cable forms a triangle as shown below
The triangle formed is a right triangle.
AC represents the inclined cable
AB represents the horizontal cable
BC represents the vertical cable
The tension is the force acting on the vertical table. Given that the force is 512N,
the tension on the vertical table is 512N
To find the tension on the inclined cable, we would apply the Sine trigonometric ratio which is expressed as
Sinθ = opposite side/hypotenuse
From the triangle,
θ = 33
opposite side = BC = 512
hypotenuse = AC
Thus,
Sin 33 = 512/AC
By crossmultiplying,
512 = ACSin33
AC = 512/Sin33
AC = 940.1 N
The tension on the inclined cable is 940.1 N
To find the tension on the horizontal cable, we would apply the tangent trigonometric ratio which is expressed as
Tanθ = opposite side/adjacent side
adjacent side = AB
tan 33 = 512/AB
By crossmultiplying,
ABtan33 = 512
Dividing both sides of the equation by tan 33, we have
AB = 512/tan33
AB = 788.4
The tension on the horizontal cable is N788.4
A plane with a mass of 6,800 kg is moving at a speed of 55.0 m/s. What is the kinetic energy of the plane?
Answers
The kinetic energy of plane is 10285000 J
Kinetic energy is defined as the energy possed by an object in motion. The mathematical representation of kinetic energy is given below:
KE = ½mv²Where:
KE is the kinetic energy
m is the mass of the object
v is the velocity of the object.
With the above formula, we can obtain kinetic energy of the plane as follow:
Mass (m) = 6800 kg
Velocity (v) = 55.0 m/s
Kinetic energy (KE) =?KE = ½mv²
KE = ½ × 6800 × 55²
KE = 3400 × 3025
KE = 10285000 JTherefore, the kinetic energy of plane is 10285000 J
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Answer:
Answer: KE = 9075 J
Explanation:
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A 183 nF capacitor is connected to a potential difference of 125 V and allowed to charge up completely. It is then disconnected from the power source. How much energy is stored on the capacitor?
Answers
The energy stored on the capacitor is 1.44 joules.
E = 0.5 * C * V²
Plugging in the given values, we get:
E = 0.5 * 183 nF * (125 V)²
Note that we need to convert the capacitance from nanofarads (nF) to farads (F) to get the correct answer. 183 nF is equal to 0.183 microfarads (uF) or 0.000183 F.
E = 0.5 * 0.000183 F * (125 V)²
E = 1.44 J
A capacitor is an electronic component that stores electrical charge. It consists of two conductive plates separated by a non-conductive material, or dielectric. When a voltage is applied to the capacitor, charge accumulates on the plates, creating an electric field between them.
The capacitance of a capacitor is a measure of its ability to store charge and is determined by the size of the plates, the distance between them, and the type of dielectric used. Capacitors are commonly used in electronic circuits for filtering, smoothing, and timing, and can be found in a wide range of devices such as power supplies, amplifiers, and filters. The energy stored in a capacitor is proportional to the square of the voltage across it and the capacitance of the capacitor. Capacitors can discharge their stored energy rapidly, making them useful in applications such as flash photography and defibrillators.
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