The total power emitted by the radio transmitter is 6.67×\(10^{4}\)W .
What is a transmitter?The given parameters;
amplitude of the electric field, E = 0.2 V/m
distance of the transmitter, = 10 km = 10,000 m
The intensity of the radio wave from the transmitter is calculated as follows
\(I=E^{2}\)/μc
I = \(5.305\)×\(10^{-5}\) \(W/m^{2}\)
The total power emitted by the radio transmitter is calculated as follows;
I= P/A
P= IA
P = 6.67×\(10^{4}\)W.
A radio transmitter, often known as a transmitter, is an electronic device used in electronics and telecommunications that uses an antenna to emit radio waves. A radio frequency alternating current is produced by the transmitter and applied to the antenna. The antenna emits radio waves after being stimulated by this alternating current.
All radio-communicating electronic devices, including radio and television broadcasting stations, cell phones, walkie-talkies, wireless computer networks, Bluetooth-enabled gadgets, garage door openers, two-way radios in aircraft, ships, and spacecraft, radar systems, and navigational beacons, require transmitters as essential component parts.
A transmitter could be a standalone electronic device or an electrical circuit housed inside another electronic gadget.
To learn more about transmitter from the given link:
brainly.com/question/2084370
#SPJ4
A 9.00 kg mass is moving to the right with a velocity of 14.0 m/s. A 12.0 kg mass is moving to the left with a velocity of 5.00 m/s. Assuming that these two balls have a head on collision and stick together, what will be the final velocity of the combination? (3.1 m/s)
Answer:
5.95 m/s to the right
Explanation:
Before the collision, the momentum of the system is given by:
p = m1v1 + m2v2
p = (9.00 kg)(14.0 m/s) + (12.0 kg)(-5.00 m/s)
p = 125.0 kg m/s (to the right)
During the collision, the two masses stick together, so their final velocity will be the same. Let's call this final velocity vf. The momentum of the system after the collision is given by:
p' = (m1 + m2)vf
p' = (9.00 kg + 12.0 kg)vf
p' = 21.0 kg vf
Since momentum is conserved in the collision (there are no external forces acting on the system), we can set p = p' and solve for vf:
125.0 kg m/s = 21.0 kg vf
vf = 5.95 m/s (to the right)
Therefore, the final velocity of the combined masses after the collision is 5.95 m/s to the right.
A player hits a ball with a bat. The action is the force of the bat against the ball.
What is the reaction to this force?
Answer:
Force of the ball against the bat
Explanation:
Newton's third law of motion states that for every action, there is an equal and opposite reaction. When a player hits a ball with a bat, the force the player exerted on the ball through the bat gave the ball a push force in the forward direction. This is an action force. Now that an action has been initiated, there must be a reaction according to Newton's third law of motion. The magnitude of the force on the ball equals the magnitude of the force on the bat. The direction of the force on the ball is opposite to the direction of the force on the ball. The ball will give the bat an equal and opposite force trying to push the bat backward by resisting the impact of the bat. This is the reaction. The ball will only move if the applied force is able to overcome the resisting force by the bat.
Where;
is the action force of the bat against the ball.
is the equal and opposite reaction force of the ball towards the ball.
Two batons have equal mass and length. Which will be ""easier"" to spin about the center?.
Two batons have equal mass and length than both will be ""easier"" to spin about the center.
What is moment of body?The amount of a force and its separation from the rotational axis determine its moment. The force's strength is expressed as the moment of a force around a point (the perpendicular distance of the line of action of the force from the point).
Given in the question two batons have equal mass and length that means that moment of batons will be same because both have same configuration.
If the mass and length of two batons are same, it will be "easier" for both to spin around the center.
To learn more about moment refer to the link:
brainly.com/question/28687664
#SPJ1
Can the sun explain global warming? ( 2 points) Suppose that the Earth has warmed up by 1 K in the last hundred years. i) How much would the solar constant have to increase to explain this? ii) Compare this to the observed fluctuation of the solar constant over the past 400 years (shown in class) For part (i), begin with the standard 'blackbody' calculation from class, that is: set α=0.30, and assume that the Earth acts as a blackbody in the infrared.
No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.
This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.
i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.
ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.
The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.
To know more about global warming :
brainly.com/question/29625243
#SPJ11
3. An object accelerates from rest, with a constant acceleration of 4.5 m/s, what will its
velocity be after 30 s?
An object accelerates from the rest, which means that the initial speed of the object is 0 m/s, so the final velocity after 30 seconds will be equal to 135 m/s.
What is acceleration?Acceleration refers to the rate of change in both speed and direction of velocity over time. When something moves slower or faster in a straight line, it is said to have been accelerated. So because direction is always shifting, motion on a circular accelerates even while the speed is constant. Both factors add to the acceleration for every other types of motion.
It is a vector quantity, since acceleration has a magnitude and a direction. Another vector quantity is velocity. The velocity vector change during a certain period of time, split by that period of time, is the concept of acceleration.
The given information in the question is,
Initial speed, u = 0 m/s
Time, t = 30 s
Acceleration, a = 4.5 m/s²
Use the equation of motion,
v = u + at
v = 0 + (4.5)(30)
v = 135 m/s
Therefore, the final velocity of the object will be 135 m/s.
To know more about acceleration:
https://brainly.com/question/12550364
#SPJ2
A rope is being pulled with a force of 366 N parallel to the horizontal surface right, five men are pulling the same rope parallel to the horizontal surface but toward left. what amount of force should an individual apply towards left to keep the rope in equilibrium (suppose that each of five men is contributing same force)
The amount of force applied by individual man to balance the force at the right is 73.2 N.
Amount of force applied by individual manThe amount of force applied by individual man to balance the force at the right is calculated as follows;
\(F_{right} = F_{left}\\\\F_{left} = F_1 + F_2 + F_3 + F_4 + F_5\\\\F _1 = F_2 = F_3 = F_4 = F_5\\\\F_1 = \frac{F_{right}}{5} = \frac{366}{5} = 73.2 \ N\)
Thus, the amount of force applied by individual man to balance the force at the right is 73.2 N.
Learn more about forces here: https://brainly.com/question/12970081
you are called to the scene of an overturned tanker truck. arriving at the scene, you notice a fluid draining from the underside of the truck. you use your binoculars to look on the placard on the back of the vehicle so that you can identify the material from your:
Northern American Emergency Response Guide.The main goal of the ERG Handbook is to help first responders immediately identify any unique or general risks associated with the material(s) at issue.
What does ERG guide 111 entail?There is also Guide 111, which is for "hazardous" materials.When using generic information, make sure to replace it with more detailed instructions as soon as new information becomes available.
What is the number on my ERG Guide?The orange panel next to the diamond-shaped sign or on the extremities and sides of the a cargo tank, vehicle, or rail car may also display the 4-digit ID Number.
To know more about Emergency Response Guide visit:
https://brainly.com/question/14949646
#SPJ4
a ray passes from air into the surface of a lucite block at an angle with the lucite surface of 48.5°. what is the angle of refraction?
When a ray of light passes from one medium to another, it changes direction due to a change in speed. This phenomenon is known as refraction. The angle of refraction can be determined using Snell's law, which states that the ratio of the sines of the angles of incidence and refraction is equal to the ratio of the speeds of light in the two media.
In this case, the angle of incidence is 48.5 degrees. Assuming the index of refraction of air is 1, the index of refraction of lucite can be found in a table or by using a refractometer. Let's assume it is 1.5. Using Snell's law, we can calculate the angle of refraction to be approximately 32.9 degrees. Therefore, when a ray of light passes from air into the surface of a lucite block at an angle of 48.5 degrees, the angle of refraction is approximately 32.9 degrees.
to know more about Snell's law visit:
https://brainly.com/question/9345994
#SPJ11
The Earth orbits around the sun. Which scenario would cause the
greatest increase in gravitational forces between the 2 masses?
A- Double the distance between the Earth and sun
B- Reduce the distance between the Earth and the sun in half.
C- Double the Earth's size.
D- Reduce the sun's size by half.
Answer:
B
Explanation:
because. it reduces the distance between the earth
Which of the following is a disadvantage of a parallel circuit? A. Parallel circuits are a complex circuit and use more wire. B. If one bulb goes out the others go out too. C. Each of the bulbs burn at a different level of brightness.
what is principal focus and focus length with examples
Explanation:
Principle focus is the point on the axis of a convex lens, where the parallel rays of light from one side of the lens. meet on other side after refraction. Distance between optical centre to principle focus point is the focal length.
a proton at rest travels through potential of 1000 v then goes to uniform 0.04 t magnrtic field. what is the radius of protons resulting orbit
The radius of protons resulting orbit is 8.43 mm.
What is radius?
The reason the bone is called the radius is because it behaves like the radius (of a circle). It revolves around the ulna, and the distance from the ulna (the circle's center) to the edge of the radius, which is known as the styloid process of the radius, is where it connects to the hand's bones (the circle).
What is protons ?
Protons include the H+ ion or the hydrogen atom's nucleus. Regardless of the isotope, each hydrogen atom has one proton, each helium atom has two, each lithium atom has three, and so on.
Potential difference, V=100V
Magnetic field ,B=0.004T
Force, F=qV= 2mv 2 (K.E.)
⇒V= \(\sqrt{2qv/m}\)
for radius of path, mv²/ R = qvB
R = mv/ qB = m/qB* \(\sqrt{2qv/m}\)
R= 1/ 0.004 * \(\sqrt{9.1 * 10-31 * 2* 100 / 1.6*10-19}\)
= 843.17 * 10⁻⁵m
= 8.43 mm
Hence, the radius of protons resulting orbit is 8.43 mm.
Learn more about radius from the given link.
https://brainly.com/question/11872169
#SPJ4
A locomotive (toy) travels at a velocity of 25 m/s for 10 s, then at 10 m/s for 5 minutes. What is the total distance covered?
A).3250m B). 4257 m C). 5200 D). The answer is not given
The total distance covered by the locomotive (toy) during the first and second journey is 10500 meters.
D) The answer is not given in the Options.
What is the total distance covered?Note that: Speed/velocity is distance traveled per unit time.
Speed = Distance ÷ time
Distance = velocity × time
Given that;
For the first journey,
velocity v = 25m/selapsed time t = 5min = (5×60)s = 300sFor the second journey,
velocity v = 10m/selapsed time t = 5min = (5×60)s = 300sDistance covered in the first journey
Distance = velocity × time
Distance = 25m/s × 300s
Distance = 7500m
Distance covered in the second journey
Distance = velocity × time
Distance = 10m/s × 300s
Distance = 3000m
Total distance covered will be;
Total Distance = Distance covered in the first journey + Distance covered in the second journey
Total Distance = 7500m + 3000m
Total Distance = 10500m
Therefore, the total distance covered by the locomotive (toy) during the first and second journey is 10500 meters.
D) The answer is not given in the Options.
Learn more about speed here: brainly.com/question/7359669
#SPJ1
as a result of rotation about six of its bonds, dna can exist in a variety of forms. determine whether each of the images and properties represents or describes the a form, b form, or z form of dna.
Each of the images and properties represents or describes the form.
A-DNA is thought to be one of the three biologically active double helix structures, along with B-DNA and Z-DNA.
This is a right-handed double helix that is very similar to the more common B-DNA form but is shorter and has a base pair that is not perpendicular to the helix axis as in B-DNA. It has a more compact helical structure.
The form is the shape, appearance, or composition of an object. In a broader sense, form is the way something happens. Forms also refer to forms documents, documents printed or electronic that contain fields for writing or entering data. A form of educational, class, group, or group of students.
Learn more about A-DNA here:- brainly.com/question/16099437
#SPJ4
Liquid ammonia flows through a pipe at a mass flow rate of 100
kg/s .
If the cross-sectional area of the pipe is 0.01
m^2, determine the flow rate of momentum through the
pipe.
The momentum flow rate through the pipe carrying liquid ammonia is 1 × \(10^6\) kg·m/s.
The flow rate of momentum (Ṁ) through the pipe can be calculated by multiplying the mass flow rate (ṁ) by the velocity (v). The speed can be determined using the equation v = ṁ / (ρA), where ρ is the density of the liquid ammonia and A is the pipe's cross-sectional area.
Given:
ṁ = 100 kg/s
A = 0.01 m²
Assuming the density (ρ) of liquid ammonia is 700 kg/m³, we can calculate the velocity (v):
v = ṁ / (ρA)
v = 100 kg/s / (700 kg/m³ × 0.01 m²)
v = 10000 m/s
Now, we can calculate the flow rate of momentum (Ṁ):
Ṁ = ṁv
Ṁ = 100 kg/s × 10000 m/s
Ṁ = 1 × \(10^6\) kg·m/s
Therefore, the momentum flow rate through the pipe is 1 × \(10^6\) kg·m/s.
Learn more about the flow rate of momentum at
https://brainly.com/question/30338128
#SPJ4
Cosmic background radiation appears to come from all directions in space and corresponed to an emitting object having a temperature of about _______ degrees Kelvin, which is close to the temperature predicted by the Big Bang theory.
Answer:
temperature of about 2.72548 ± 0.00057 K.
Explanation:
The cosmic background radiation is an electromagnetic radiation that remains from an early stage of the universe during the big bang. It was accidentally discovered in 1965 by two American radio astronomers Arno Penzias and Robert Wilson. The radiation was given off before the formation of stars and planets, when the universe was young, denser, hotter, and filled with a uniform glow from a white-hot fog of hydrogen plasma, which cooled down as the universe expanded. From calculations, it was deduced that the radiation had a temperature of 2.72548±0.00057 K, which is close to the temperature of the universe during its formation.
2. A bar magnet is divided in two pieces . Which of the following statements is true about the force between the broken pieces if they face each other with a small separation ? A. There is an electric repulsive force between the broken pieces B. There is an electric attractive force between the broken pieces C. There is a magnetic repulsive force between the broken pieces D. There is a magnetic attractive force between the broken pieces .
What is the weight on Earth of a girl with a mass of 30 kg? The acceleration due to gravity is 9.8 m/s2.294 N3.1 N39.8 N20.2 N
ANSWER:
294 N
STEP-BY-STEP EXPLANATION:
We can calculate the weight as follows:
\(\begin{gathered} W=m\cdot g \\ \end{gathered}\)Replacing:
\(\begin{gathered} W=30\cdot9.8 \\ W=294\text{ N} \end{gathered}\)Weight is 294 N
a mass m is attached to a spring with spring constant k. when this system is set in motion with amplitude a, it has a period t. what is the period if the amplitude of the motion is increased to 2a?
If the motion's amplitude is increased to 2a, the period stays the same.
The amount of time is how long it takes for a wave to pass a location after going through one full cycle.
The formula for the springtime season is:
\(t = 2\ \sqrt{ \binom{m}{k} } \)
where the spring constant k and time period = T and mass of the system = m
Motion's amplitude is a
We can infer from the equation that,
A spring-mass system's period is inversely proportional to the square root of the mass and proportionate to the spring constant.
The period of time stays the same even if we raise the motion's amplitude to 2a.
The time period is independent of a since it does not depend on amplitude.
Hence, if the motion's amplitude is increased to 2a, the period stays the same.
To know about amplitude
https://brainly.com/question/9525052
#SPJ4
Define and apply current Define and apply resistance 1. A number of identical lamps are each mark 12V, 2.0 W. The lamps are connected in series to a 240 V mains supply and each lamp lights with normal brightness. (a) Calculate (i) the number of lamps connected in series,
Explanation:
Current : Flow of charge per unit time is current. Its unit is ampere. I (Current) = Voltage(V) / Resistance(R)
Resistance : Hindrance to the flow of current is called resistance. Its unit is ohm. R = V/I
Each lamp cause 12 volt drop in voltage so 240/12= 20 lamps will be enough to be connected in series.
Each lamp will light with same brightness because these are connected in series and the current (number of charges passing per unit time) is same through all of these.
If anything want to learn, you are welcome to ask in comments.
Please mark it branliest if the answer is little bit satisfying.
Thanking in anticipation.
a ferris wheel has a centripetal acceleration equal to 2m/s squared. what is the centripetal force acting on a 45 kg boy riding in one of the cars when the car is on the top of the ferris wheel? what is the force exerted by the seat on the boy when the car is at the top of the ferris wheel
Explanation:
\(centripetal \: force = \frac{m {v}^{2} }{r} \)
Centripetal force = 45 * 2 = 90 N
Therefore, centripetal force acting on a 45 kg boy riding in one of the cars when the car is on the top of the ferris wheel is 90 N.
The force exerted by the seat on the boy when the car is at the top of the ferris wheel is a centrifugal (pseudo force) acting (since the since the seat is in non- inertial frame) in exact opposite direction (Outwards) as the centripetal force and is equal in magnitude.
Have we made an object that could travel 1% the speed of light?
No, we have not made an object that could travel at 1% of the speed of light. The fastest man-made object ever created is the Parker Solar Probe, which was launched in 2018 and is expected to reach speeds of up to 430,000 miles per hour (700,000 km/h) as it approaches the Sun. However, this is still only about 0.064% of the speed of light.
Have we made an object that could travel at 1% of the speed of light?No. we have not. The speed of light is approximately 186,282 miles per second (299,792 km/s) or 670,616,629 miles per hour (1,079,252,848 km/h). In order to travel at 1% the speed of light, an object would need to be moving at 6,706,166 miles per hour (10,792,528 km/h), which is significantly faster than any object we have created.
One of the main reasons why we have not been able to create an object that can travel at 1% the speed of light is because of the tremendous amount of energy required to reach such speeds. The faster an object travels, the more energy is required to accelerate it to higher speeds. As an object approaches the speed of light, the amount of energy required to continue accelerating it increases exponentially, making it extremely difficult to achieve speeds even close to the speed of light.
read about speed light
https://brainly.com/question/17192208
#SPJ11
A 2-kg mass is attached to a spring whose constant is 18 N/m, and it arrives at the position
of balance. From
t = 0, an external force equal to
f(t)=2sin2t.
Find the resulting equation of motion.
The resulting equation of motion for the system is given by m × x''(t) + k × x(t) = f(t), which is 2 × x''(t) + 18 * x(t) = 2 * sin(2t).
What is equation of motion?
The equations of motion are a set of mathematical relationships that describe the motion of objects under the influence of forces. There are different sets of equations of motion, depending on the specific scenario and the type of motion being considered (linear motion, projectile motion, circular motion, etc.). The equations of motion for linear motion, also known as the equations of uniformly accelerated motion.
To find the equation of motion for the system, we start with Newton's second law of motion, which states that the sum of forces acting on an object is equal to the mass of the object multiplied by its acceleration. In this case, the object is the 2-kg mass attached to the spring.
The force exerted by the spring is proportional to the displacement of the mass from its equilibrium position, and it can be expressed as F_spring = -k× x(t), where k is the spring constant and x(t) is the displacement of the mass at time t.
In addition to the force exerted by the spring, there is an external force f(t) = 2 ×sin(2t) acting on the mass.
Applying Newton's second law, we have the equation of motion: m ×x''(t) + k ×x(t) = f(t).
Substituting the given values, m = 2 kg and k = 18 N/m, we obtain 2 ×x''(t) + 18 × x(t) = 2 ×sin(2t).
Therefore, the resulting equation of motion for the system is 2 × x''(t) + 18 × x(t) = 2 × sin(2t).
To know more about equation of motion, refer here:
https://brainly.com/question/29278163#
#SPJ4
What does temperature measure?
a.)average kinetic energy of the particles in an object or substance
b.)relative heat of an object or substance compared to its environment
c.)potential energy stored in the chemical bonds of an object or substance
d.) kinetic energy of objects or substances
Answer:b
Explanation:
Answer:
B
Explanation:
what is the common abbreviation for millimeters, centimeters,meters
Answer:
meter m
centimeter cm
millimeter mm
Explanation:
The earth is compressed to keep one third of radius .Calculate the acceleration of the new earth.(acceleration due to gravity of the earth before it is compressed is 9.8m/s^2.
Answer: read your text book
Explanation:
the candle had 350 J of energy in the chemical store. As it burned, 250 J was transferred by lighting to the surrounding
Answer:
Efficiency = 71%
Explanation:
Given the following data:
Output energy = 250 Joules
Input energy = 350 Joules
To find efficiency;
\( Efficiency = \frac {Out-put \; energy}{In-put \; energy} * 100 \)
Substituting into the equation, we have;
\( Efficiency = \frac {250}{350} * 100 \)
\( Efficiency = 0.7143 * 100 \)
Efficiency = 71.43 ≈ 71%
Therefore, the efficiency of the candle is 71 percent.
NEED HELP WITH THIS PLS HELP MEEEE
When the adrenal gland is not functioning properly, it can cause inflammation in the body which can most likely be felt at B. Joints.
Where would one likely feel inflammation from adrenal gland failure ?Joint inflammation, also referred to as arthritis, can arise due to imbalances in hormonal levels, including cortisol and corticosteroids, which are under the regulation of the adrenal gland.
Joint inflammation can give rise to symptoms such as pain, swelling, stiffness, and diminished mobility. It can affect multiple joint sites, including the knees, hips, hands, and shoulders. When the adrenal gland does not operate optimally, the body's capacity to regulate inflammation and immune responses may be compromised, culminating in heightened joint inflammation.
Find out more on the adrenal gland at https://brainly.com/question/29068914
#SPJ1
18. Which does not affect the strength of an electromagnet?
A the current in the solenoid
B the temperature of the coil
OC the number of loops in the coil
D the type of ferromagnetic core
Answer:
The temperature does not affect the strength of a magnetExplanation:
An electromagnet is obtained by winding an insulated wire round a soft iron rod with the wire ends connected to a DC source. such magnets have temporary magnetic properties which disappears with time as the current supply is cut off.
Furthermore the strength off an electromagnet
increases as current increasesincreases as the number of turns increasesthe type of magnetic core is highly essential as an iron core will do batter than a silver core
Brainliest to first to answer. What is the maximum stress which a material can withstand when it is pulled apart?
Answer:
stress tension tensile strength
Explanation:
The maximum stress which a material can withstand when it is pulled apart is its: stress tension tensile strength.