The sun heats land faster than it heats water. As a result, the air above the water is usually cooler than that above land. Many times, early in the morning, the air above the water is very dense and is difficult to see through. What effect is observed from this difference in temperature?.
Answers
The effect that is observed from the difference in temperature is a sea breeze.
A sea breeze is a cooling wind that blows from the sea to the land and results from the difference in temperature between the land and the sea. The sun heats land faster than water, which causes the air above the land to heat up faster than the air above the water, as per the given statement.
As a result, the warm air above the land rises, creating low pressure over the land. On the other hand, the cool air above the sea sinks, creating high pressure over the sea. As a result, the cool air moves from the sea to the land, which is known as a sea breeze.So, the difference in temperature caused by the sun's heating land faster than water leads to the formation of a sea breeze.
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Related Questions
You make yourself and your friend a cup of hot chocolate and add vanilla ice cream. You quickly enjoy yours, but your friend takes a long time to come, so you get to observe theirs as a science experiment.
In what direction does the heat flow? (2 points)
Describe how the kinetic energy of the hot chocolate changes once you add the ice cream. (2 points)
How does the kinetic energy of the ice cream change once you put it in the hot chocolate? (2 points)
What happens to the temperature of each substance? Be specific. (2 points)
When will the temperature of the ice cream and the hot chocolate stop changing? (2 points)
Answers
The answers include the following;
The direction in which the heat flows is from hot chocolate to the vanilla ice cream. The kinetic energy of the hot chocolate decreases once you add the ice cream.The kinetic energy of the ice cream increases once you put it in the hot chocolate.The temperature of each substance will exchange heat till an equilibrium is reached.The temperature of the ice cream and the hot chocolate will stop changing when there is uniformity.What is Temperature?This is referred to as the degree of hotness or coldness of a substance and it is influenced by thermal energy.
The direction in which the heat flows is from hot chocolate to the vanilla ice cream and the kinetic energy of the hot chocolate decreases once you add the ice cream.
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An emf of 46.9 mV is induced in a 294-turn coil when the current is changing at a rate of 8.8 A/s. What is the magnetic flux through each turn of the coil at an instant when the current is 3.51 A
Answers
Magnetic flux through each turn of the coil at an instant when the current is 3.51 A is 0.000547 Wb.
The induced emf in a coil is given by Faraday's law of electromagnetic induction as:
emf = - N(dΦ/dt)
where N is the number of turns in the coil, Φ is the magnetic flux through each turn, and dt/dt is the rate of change of magnetic flux.
Rearranging the above equation, we get:
Φ = - emf / (N (d/dt))
Substituting the given values, we get:
Φ = - (46.9 × 10⁻³ V) / (294 × (8.8 A/s)) = - 0.000191 Wb
At an instant when the current is 3.51 A, the rate of change of current is:
(d/dt) = 3.51 A/s
Substituting this value, we get:
Φ = - (46.9 × 10⁻³ V) / (294 × (3.51 A/s)) = - 0.000547 Wb
The negative sign indicates that the direction of the induced magnetic flux is opposite to the direction of the changing current.
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calculate the periodic time of a source that makes 600 oscillations in one minute
Answers
The period of the source is 36,000 seconds per oscillation.
What is the relationship between the frequency and period of a source?The frequency and period of a source are inversely proportional to each other. The period is the time taken for one complete oscillation, while the frequency is the number of oscillations per unit time. Mathematically, the period is the reciprocal of the frequency, and the frequency is the reciprocal of the period. This means that as the frequency of a source increases, its period decreases, and vice versa.
The number of oscillations per unit time is known as the frequency of the source. In this case, the frequency of the source is:
f = 600 oscillations/minute
To calculate the period of the source, we use the formula:
T = 1/f
where T is the period of the source.
Substituting the value of f, we get:
T = 1/600 oscillations/minute
To simplify this expression, we can convert minutes to seconds:
T = 1/600 oscillations/minute x 1 minute/60 seconds
T = 1/36000 oscillations/second
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Nuclei decay from a more stable form to a less stable form.Question 9 options:TrueFalse
Answers
ANSWER
False.
EXPLANATION
In radioactive decay (or nuclei decay), an unstable nucleus emits radiation into a nucleus that is table and has less energy and a lower mass.
Therefore, nuclei decay from a less stable form to a more stable form.
The answer is false.
an 8 kg crate is pulled 5m up a 30 degree incline by a rope angled 18 degree above the incline. the tension in the rope is 120n and the crates coefficient of friction on the incline is .25. a) how much work is done by the tension, gravity, and the normal force? b) what is the increase in thermal energy of the crate and incline?
Answers
The work done by the tension is 593.4 Joules, the work done by the gravity is -179 Joules, the work done by the normal force is 0 Joules and the increase in the thermal energy of the create and incline is 25.7 Joules.
The mass of the crate is 8 kg and it is being pulled up 5m on 30 degree inclined plane by a rope inclined at an angle 18 degree above the incline itself.
The tension in the Rope is 120 Newton and the coefficient of friction between the crate and the incline is 0.25.
The angle made by the tension T with respect to the horizontal ground will be 30 degree + 18 degrees.
So, the angle made by Tension is 48°.
There will also be a normal force N on the crate.
(a) Solving for work done,
So, work done by tension,
W = Tcos48°(5)
W = 593.4J
Work done by gravity, W',
W' = Mgsin30°(5)
W' = -179J
Work done by gravity will be negative because the direction of the force applied and the displacement of the crate is opposite.
There will be no work done by the normal force because the force applied by the normal force is perpendicular to the direction of the motion of the crate.
(b) the increase in the thermal energy of the create and inclined will be equal to the work done by the friction,
Work done by friction = un(5)
Work done by friction = (uMgcos30°-Tsin18°)(5)
Work done by friction = 25.76J.
So, the increase in the thermal energy is 25.76 Joules.
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Normal human body temperature is 98.6°F. What is this temperature expressed in Celsius (°C) and in Kelvin (K)?
Answers
Answer: 37 Celsius and 310.15 K
Explanation:
C/5 = (F-32)/9 = (98.6-32)/9 = 66.6/9 = 7.4
C = 7.4 * 5 = 37 so the temperature is 37 Celsius
K = C + 273.15 = 37 + 273.15 = 310.15 K
what cultular value does this melodic line portray?
a.jubilant
b.reserved
c.rich
d.poor
Answers
What cultular value does this melodic line portray?
answer : reserved...
Impulse can be defined as
The frequency at which something occurs
The change in velocity
The change in momentum from an force within the system
The change in momentum from a force outside of the system
Answers
Explanation:
The change in momentum from an force within the system.
Which of the following is an example of acceleration?
A) Standing in position while waiting to begin jumping jacks.
B) A leaf blown from a tree by the wind.
C) Gravity holding a rock still on the ground.
D) Slowing a bike by applying the brakes.
Answers
Answer:
B) a leaf blown from a tree by the wind
Answer:
the answer is B A leaf being blown from a tree by the ground
What is the height of a 50 kg person that has a potential energy of 4900J?
245,000m
98 m
10 m
Answers
Answer:
10 m
Explanation:
PE = mgh
m = 50kg
g= 9.8 m/s^2
h=?
so,
4900= 50×9.8× h
50h = 4900/9.8
50h = 500
h = 10 m
Technology required. A plane leaves the ground with an elevation angle of 6 degrees.
The plane travels 10 miles horizontally.
a. How high is the plane at the time?
b. What is the distance of the plane's path?
Round answers to the nearest tenths.
How high is the plane at this time?
miles
What is the distance of the plane's path?
miles
Answers
(a) The plane's height at that time is approximately 10.49 miles.
(b) The distance of the plane's path is approximately 10.06 miles.
To solve this problem, we can use trigonometry. Let's consider the elevation angle of 6 degrees, the horizontal distance of 10 miles, and the height of the plane at a certain time.
a. To find the height of the plane, we can use the tangent function:
tangent(angle) = opposite/adjacent
In this case, the opposite side is the height of the plane, and the adjacent side is the horizontal distance traveled.
tangent(6 degrees) = height/10 miles
Rearranging the equation, we can solve for the height:
height = tangent(6 degrees) * 10 miles
Plugging in the values:
height = tan(6 degrees) * 10 miles = 1.049 * 10 = 10.49 miles
Therefore, the plane's height at that time is approximately 10.49 miles.
b. The distance of the plane's path can be calculated using the cosine function:
cosine(angle) = adjacent/hypotenuse
In this case, the adjacent side is the horizontal distance traveled, and the hypotenuse is the total distance traveled by the plane.
cosine(6 degrees) = 10 miles/distance
Rearranging the equation, we can solve for the distance:
distance = 10 miles / cosine(6 degrees)
Plugging in the values:
distance = 10 miles / cos(6 degrees) = 10 / 0.9945 = 10.06 miles
Therefore, the distance of the plane's path is approximately 10.06 miles.
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What theory of mercury's origin can best explain the fact that its core is made of such dense materials?
Answers
Answer:
Giant impacts in its early history may have torn away much of its original crust and mantle.
So Mercury has a giant iron core, but why?
There are three general ideas.
1. Mercury was once the core of a gas giant that vaporized when the Sun became a fully-fledged star. This gas giant was probably more like Uranus or Neptune than Jupiter or Saturn.
There are significant issues here, especially that Mercury's existing surface has been exposed to space since the solar system's initial beginnings. On Mercury, remnants of the first massive bombardment have been found.
2. Mercury formerly had a deeper mantle and was a bigger terrestrial planet. During the early history of the solar system, a dwarf planet made a massive impact that robbed the planet of its mantle.
The existing surface of Mercury has been exposed to space since the very beginning of the solar system, which raises major issues once more.
Due to the factors in explanation 1, characteristics from the first significant bombardment have been found on Mercury. The quantity of low temperature volatiles that are trapped and sometimes sublimate out of the crust, causing hollows, is also a major issue. By such an impact, these low temperature volatiles—such as sodium, sulphur, magnesium, etc.—would have been completely pushed out.
3. A mostly iron-rich body developed, and "rock steam"—a gaseous mixture of atomic oxygen and silica—condensed and accreted onto it from the protoplanetary disk near the Sun. Small rock particles with lower temperature volatiles were subsequently formed into a crust. Additionally, it appears that iron was concentrated in the inner region of the protoplanetary disk by the Sun's early, extremely powerful magnetosphere.
Whilst there are a few minor issues with this, this appears by far the most likely scenario.
Its crust and mantle may have been significantly altered during its early history by massive collisions.
What is Core?The extremely hot and dense core of Earth is called the core. Under the mainly solid mantle and the chilly, brittle crust is the ball-shaped core. The radius of the core is about 3,485 kilometers, and it can be located around 2,900 kilometers (1,802 miles) beneath the surface of the Earth (2,165 miles). Earth is more ancient than the core.
Approximately 4.5 billion years ago, Earth was a uniform ball of hot rock. The ball warmed up considerably more due to radioactive decay and residual heat during planetary formation. After roughly 500 million years, the temperature of our new planet reached 1,538 degrees Celsius (2,800 degrees Fahrenheit), which is the temperature at which iron melts. The iron catastrophe refers to this critical moment in Earth's history.
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(BRAINLIEST!) Does more momentum mean more force?
Answers
Answer:
no.
Explanation:
How are Van Allen belts formed?
O High-energy particles from the Sun get trapped in Earth's magnetic field
O Metals in Earth's core sink and rise, producing a circular movement of the metals.
O Srticles in solar wind travel along lines of Earth's magnetic field and collide with gas atoms.
O Material from the surface of the Sun erupts and forms a loop due to the Sun's magnetic field.
Answers
The Van Allen belt is formed when High-energy particles from the Sun get trapped in Earth's magnetic field
How are Van Allen belts formed?The Van Allen belts are fields in outer space caused by Earth's magnetism. Magnetic striping is evidence of seafloor unfurling. The inner Van Allen belt is located usually between 6000 and 12 000 km (1 - 2 Earth radii [RE]) above Earth's surface, although it formed dips much near the South Atlantic Ocean. The outer radiation belt covers altitudes of roughly 25 000 to 45 000 km (4 to 7 RE).
Space scientist James Van Allen and his team at the University of Iowa were the first to locate the radiation belts, now also mention to as "The Van Allen Belts."
So we can conclude that The Van Allen belts were first discovered in 1958
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High-energy particles from the Sun get trapped in Earth's magnetic field.
option A.
How are Van Allen belts formed?The Van Allen belts are formed due to the interaction of charged particles from the solar wind with Earth's magnetic field. High-energy particles from the Sun get trapped in Earth's magnetic field, creating two belts of charged particles that encircle the planet.
The inner belt is made up of highly energetic protons, while the outer belt consists of energetic electrons. The charged particles are trapped by the magnetic field and follow magnetic field lines that are shaped like a torus (doughnut) around the Earth. This creates the Van Allen belts, which can extend several thousand kilometers into space and protect the Earth from the harmful effects of charged particles in the solar wind.
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A rocket travels vertically at a speed of 1200 km/h. The rocket is tracked through a telescope by an observer located 16km from the launching pad. Find the rate at which the angle between the telescope and the ground is increasing 3 min after lift-off. Round your answer to the nearest hundredth rad/hr
Answers
Answer:
w = 0.01 t⁻² rad/h
Explanation:
Let's use trigonometry to find the elevation angle of the telescope, we assume that the rocket remains fixed in the telescope.
tan θ = CO / CA
the adjacent leg is CA = 16 km = 16 10³ m
Let's use kinematics to find the height of the rocket
v = y / t
y = v t
this height is equal to the opposite leg
CO = v t
we substitute
tan θ = vt / 16
tan θ = 1200/16 t
tan θ = 75 t
θ = tan⁻¹ ( 75 t )
speed is defined by
w = dθ/dt
w = \(\frac{1}{1 + (75 t)^2} \ 75\)
as time increases we can neglect the 1 of the denominator
w = 1/75 t²
w = 0.0133 t⁻²
Using three significant figures
w = 0.01 t⁻² rad/h
for this answer the time must be given in hours
A 1600 kg car with the brakes applied comes to a stop in 4.20 seconds. During these 4.20 seconds the force of friction slowing down the car is 3900 N. What is the change in momentum of the car?
Answers
Answer:
The change in momentum of the car is 16380.8 kg.m/s
Explanation:
Given;
mass of the car, m = 1600 kg
time of motion, t = 4.20s
force of friction on the car, F = 3900 N
final velocity of the car after the brakes were applied, v = 0
The initial velocity of the car during the motion is calculated as;
\(F = ma = \frac{mu}{t} \\\\mu = Ft\\\\u = \frac{Ft}{m} \\\\u = \frac{3900\times 4.2}{1600} \\\\u = 10.238 \ m/s\)
The change in momentum of the car is calculated as;
ΔP = mu
ΔP = 1600 x 10.238
ΔP = 16380.8 kg.m/s
The magnetic field on Earth is due primarily
a) iron and nickel sinking into the core
b) magnesium diffusing through the mantle
c) aluminum remaining in the crust
d) silicates rising to the surface
Answers
The magnetic field on Earth is due primarily to iron and nickel sinking into the core. Option A is correct.
A magnetic field is a region in space where a magnetic force is experienced by a magnetic object or a moving charged particle. It is created by the motion of electric charges, such as electrons in atoms, or the movement of current in a wire.
The Earth's core is composed mainly of iron and nickel, and the movement of these metals in the liquid outer core generates a magnetic field through a process known as dynamo action.
The flow of liquid metal in the outer core generates electric currents, which in turn create the magnetic field that surrounds the Earth. This magnetic field is important for protecting the Earth from harmful solar radiation and is also responsible for phenomena such as the aurora borealis.
Hence, A. is the correct option.
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Why do we see? Explain
Answers
Answer:
we see to make things visible . if we don't see then we can not give the scene around us. on the way if we close our eyes will we can we home from different types of vehicles .
Explanation:
thank you Mark as a brainlist
does lightning McQueen have car or life insurance?
Answers
Answer:
I'm guessing life insurance i don't know tho
Explanation:
The power of a PV panel is rated at the peak solar insolation of 1000 W/m2. The size of a typical 300 W PV panel is about 2.0 m2. (a) What is the efficiency of such PV panels? (b) If you install 10 pieces of 300 W PV panels on your house roof top in Wyoming, how much electrical energy is it produced daily? Assume on average, the peak sun hours in the Wyoming area are 3.2 hours. (c) If 50% of the energy collected by the PV panel is used to heat up the water in your home water heater, it can supply to heat up how many gallons of water from 15 C to 55 C? 1 liter of water weighs 1 kg in mass, 1 gallon = 4.546 liters, 1 kWh = 3.6x106 J
Answers
(a) The efficiency of the PV panel can be calculated using the formula:Efficiency = (Power output / Power input) × 100Where,Power output = The power generated by the PV panel (300 W in this case)Power input = The solar insolation (1000 W/m2 in this case) × Area of the panel (2.0 m2 in this case)Efficiency = (300 / (1000 × 2)) × 100= 15%
(b) The total power generated by 10 pieces of 300 W PV panels is given as:Total power = Power of 1 panel × Number of panels= 300 × 10= 3000 WPeak sun hours in Wyoming = 3.2 hours Therefore, the total energy produced daily is given as:Energy produced = Total power × Peak sun hours= 3000 × 3.2= 9600 Wh or 9.6 kWh(c) The energy produced by the PV panel is given as:Energy produced = Power output × Time= 300 × 3.2 × 50/100= 48 kWh= 48,000 Wh= 48,000 / 3.6 × 106 kWh= 0.013 kWh or 13 Wh Weight of 1 gallon of water = 4.546 × 1 = 4.546 kg Mass of water = Volume × Density= 4.546 × 15 = 68.19 kg= 68.19 / 1 = 68.19 liters
Heat required to increase the temperature of 1 liter of water from 15°C to 55°C is given as:Heat = mass × specific heat capacity × temperature rise= 1 × 4.18 × (55 - 15)= 209.2 JHeat required to increase the temperature of 68.19 liters of water from 15°C to 55°C is given as:Heat = 68.19 × 209.2 J= 14,250 J or 0.01425 kWh Energy produced by the PV panel is 0.013 kWh Therefore, the number of gallons of water that can be heated up is given as:Number of gallons = Energy produced / Heat required= 0.013 / 0.01425= 0.91 gallons Therefore, the PV panel can supply to heat up 0.91 gallons of water from 15°C to 55°C.
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1. how to calculateEffective resistance of the circuit
Answers
The effective resistance of any circuit can be obtained by summing the individual resistance or taking the sum of their reciprocals.
What is the effective resistance of a circuit?
The effective resistance of a circuit is calculated depending on the circuit arrangement.
For series circuit arrangement, the effective resistance is calculated as;
Re = R₁ + R₂ + R₃ + -----
Where;
Re is the effective resistance of the circuitR₁, R₂, R₃ are the individual resistors in seriesFor parallel circuit arrangement, the effective resistance is calculated as;
1/Re = 1/R₁ + 1/R₂ + 1/R₃
Where;
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5p - 14 = 8 p + 4 find p
Answers
Answer:
Explanation:
5p - 14 = 8p + 4
5p = 8p + 18 <-- Moving constants to one side; add the same number of +14 to both sides.
-3p = 18. <-- The same thing with the variable itself.
p = -6 <-- Divide both sides by negative 3.
Can I have help please , ASAP?
Answers
Could someone help me? A cannon is fired with an initial horizontal velocity of 20 m/s and initial vertical velocity of 25 m/s . After 3s in the air, the canon hits its target. How far away was the canon from its target?
A high jumper leaves the ground with an initial velocity of 10 m/s rightward at an angle of 15 degrees . What is the high jumper's initial horizontal velocity?
Which of the following best explains what creates this convection current?
options:
The rotation of Earth makes the air above it rotate, but not the same over land and water.
Because of its mass, Earth's gravity creates a high pressure area over both the land and water.
Salt in the ocean makes it more dense than the land, so its gravity pulls more on the air above it.
During the evening, the land cools off more quickly than the water. The cooler land cools the air above it, while the warmer water warms the air above it. These differences in air temperature create the convection.
Answers
Answer:
During the evening, the land cools off more quickly than the water. The cooler land cools the air above it, while the warmer water warms the air above it. These differences in air temperature create the convection.
Explanation:
sorry I took forever
Look at the distance-time graph below. It shows Angela's journey as she walks to the end of the road and back. The end of the road is 40 m away. After how many seconds did she arrive back where she started?
Answers
Answer:
Explanation:
If the distance to the end of the road was 40 m, and she traveled back to where she started, she traveled a total distance of 80 m. It took her 100 seconds to travel the 80 m.
Based on the given distance-time graph, the number of seconds that Angela used to go to the end of the road and arrive back is 100 seconds.
How long did Angela take?The end of the road is 40m and coming back is also 40 m. The total distance is:
= 40 + 40
= 80m
The graph shows that to walk 80 meters, Angela took a 100 seconds because the line on the graph ends at 80 m and 100 seconds.
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What is the electric field amplitude of an electromagnetic wave whose magnetic field amplitude is 2.20 mT
Answers
6.6 * \(10^{5}\) V/m is the electric field amplitude of an electromagnetic wave whose magnetic field amplitude is 2.20 mT
Given the data in the question:Magnetic field amplitude = Bm = 2.20 mT = 2*\(10^{-3}\) T
Electric field amplitude = Em = ?
Electric field:An electric field is a field created by electrically charged particles that attracts or repels other electrically charged particles surrounding it.
The greatest strength of the electric and magnetic fields is known as the electric field amplitude.
It can be said to be,
Em = c * Bm
Where, c is the speed of light(c = 3 * \(10^{8}\) m/s)
Bm is the magnetic field amplitude
On substituting the values we get,
Em = c * Bm
Em = 3 * \(10^{8}\) m/s * 2.20 * \(10^{-3}\) T
Em = 660000 V/m
Em = 6.6 * \(10^{5}\) V/m
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what is the effect on electrostatic force if distance increase 3 times
Answers
Here is your Answer:-
If the distance separating the objects is tripled, then what is the new force? Explanation: -The electrostatic force is inversely related to the square of the separation distance. So if d is three times larger, then F is nine times smaller – that is, one-ninth the original value.
Answer:
Explanation:
Given:
r₂ = 3·r₁
________
F₂ / F₁ - ?
According to Coulomb's law:
F₁ = k·q₁·q₂ / r₁²
F₂ = k·q₁·q₂ / r₂²
F₂ / F₁ = (r₁ / r₂)²
F₂ / F₁ = ( r₁ / (3·r₁)² = (1 / 3)² = 1 / 9
Strength will decrease by 9 times
D=12000 m
T= 30min
V=?
Ayudenme en este ejercicio xfa
En m/min y en Km/h
Answers
1. The weight of body in air is 20N displaced 5N when emerged into water. The mass of body in water is ??
Answers
Answer:
5 N
Explanation:
Archimedes' principle indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces.
In this case, The weight of an object in air is 20N and it weighs x N when fully immersed in water. So, the weight of the water displaced is given as;
20 − x = 5
Therefore, the weight of the body in water is 5 N.
I need help please mark you answers with the question Ex: Question: 1 The answer is __
thank you
Answers
The velocity of an object includes direction of the motion of an object whereas speed does not include direction. Thus, the correct options for 1, 2, 3, 4, and 5 are B, B, A, A, and B, respectively.
What is Velocity?Velocity can be defined as the directional speed of an object in the motion as an indication of the rate of change in the position of an object as observed from a particular frame of reference by the observer and as measured by a particular standard of time.
The velocity is different from that of speed as it is a vector quantity, the velocity of an object includes direction of the motion of an object whereas speed does not include direction.
Track runners cover same distance however, the winner in the race is the one who covers the particular distance in less time than other competitors.
The slowest runner in the graph is the one represented with blue color. This is because, this runner took maximum time to cover the distance.
The distance covered by the train is 300 miles in time period of 6 hours. Therefore, the speed of the train will be the distance covered by the train divided by the total time taken.
Speed of the train = 300 miles/ 6 hours
Speed of the train = 50 miles per hour.
The example of velocity is the one with the unit of length per time. From the given options, 80 miler per hour is an example of velocity as miles is the unit of length and hour is the unit of time.
Therefore, the correct options for 1, 2, 3, 4, and 5 are B, B, A, A, and B, respectively.
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