the sun delivers an average power of 1.454 w/m2 to the top of neptune's atmosphere. find the magnitudes of max and max for the electromagnetic waves at the top of the atmosphere.

Answer:

its when a liquid, prolly water, turns into a vapor !!

Explanation:

and nice pic uwu

A liquid turning into a gas is evaporation. It is how water gets from the surface of the Earth to the atmosphere.

Latent heat is a form of energy held in the evaporated water when it evaporates and cools.

Evaporation plays a significant role in the energy exchange that results in atmospheric motion, affecting weather and climate in the Earth-atmosphere system.

The particles with the highest kinetic energy are the first to evaporate from a liquid.

Most of the air's moisture evaporates from rivers, lakes, seas, and oceans. Water at the surface of the Earth evaporates into water vapor, which rises into the sky and forms clouds, which eventually release water back onto Earth as precipitation.

Answer:

63º~64º

Explanation:

so imagine a graphic with a triangle. The distance between the zero and the horizontal (x) is 20 and the distance between 0 and vertical (y) is 60

20 = base

60 = height

hypotenuse = L

tg = cato/cata

tg = 60/20

tg = 2

I give up

The formula for calculating density is expressed as

Density = mass/volume

From the information given,

mass of empty pycnometer = 10.2

mass of the same pycnometer with an unknown liquid is 21.8.

Mass of unkown liquid = 21.8 - 10.2 = 11.6

volume of unknown liquid = 7

Thus,

Density = 11.6/7

Density = 1.7 g/ml

The total heat needed to raise 4 moles of ethanol from 72°C to 90°C is equal to 257.2 KJ.

The specific heat of a substance can be defined as the amount of heat needed to raise the temperature in 1 unit of substance by one-degree Celcius.

Q = mCΔT

The heat needed to raise the ethanol from 72°C to a boiling point of 78°C will be:

Q₁ = 4 × 0.110 × (78°C - 72°C)

Q₁ = 33.6 KJ

To calculate the heat needed to evaporate the ethanol is:

Q₂ = 4 × 43.3

Q₂ = 173.2 kJ/mol

The heat needed to raise the ethanol vapor from 78°C to 90°C. is equal to:

Q₃ = 4 × 0.78 × (90°C - 78°C)

Q₃ = 50.4 KJ

Therefore, the total heat needed to raise 4 moles of ethanol from 72°C to 90°C will be:

Q = 33.6 kJ + 173.2 kJ + 50.4 kJ

Q = 257.2 kJ

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Answer:

1.5 m/s ; - 1.5 m/s²

Explanation:

F = ma

F = Force ; m = mass of body ; a = Acceleration

Hence,

a = F/m

F = 6N applied in the direction of motion of the. Body

a = 6N / 4 kg

a = 1.5 m/s² in the direction of motion.

If the force is applied in the opposite direction of motion :

F = ma

a = F/m

a = 6 / 4

a = 1.5 m/s²

Simc efoece is applied in the opposite direction of motion :

We have a negative acceleration (deceleration) = - 1.5 m/s²

0.78 watts power is produced by a flashlight that has a voltage of 12 volts and a current of 6.5 × \(10^{-2}\)  amps.

Hence, the correct option is A.

To calculate the power produced by a device, we can use the formula:

Power (P) = Voltage (V) * Current (I)

Given:

Voltage (V) = 12 volts

Current (I) = 6.5 × \(10^{-2}\)  amps

Substituting the values into the formula:

Power (P) = 12 volts * (6.5 × \(10^{-2}\) amps)

Power (P) = 0.78 watts

0.78 watts is produced by a flashlight that has a voltage of 12 volts and a current of 6.5 × \(10^{-2}\) amps.

Hence, the correct option is A.

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Answer:

Because it has more texture and is solid. Its like glass

Explanation:

Answer:

Why is ice more reflective (has higher albedo) than liquid water? They're both the same substance (water). Is something quantum mechanical involved?

Explanation:

In fact ice is slightly less reflective than water. The reflectivity is related to the refractive index (in a rather complicated way) and the refractive index of ice is 1.31 while the refractive index of water is 1.33. The slightly lower refractive index of ice will cause a slightly lower reflectivity. In both cases the reflectivity is about 0.05 i.e. at an air/water or air/ice surface about 5% of the light is reflected.

Answer:

atom

Explanation:

the first guy who gave link this is for you:

we cannot use links in brainly

Thankyou.

The magnitude of the acceleration of the car (in m/s2) at the instant its speed is 61.0 km/h is approximately 1.73 m/s2.

The acceleration on the car comes in sub divided parts:

The acceleration is generally due to the brakes is tangential to the circular curve.

The acceleration due to the circular motion of the car is centripetal. It points towards the center of the circle.

These two accelerations are considered perpendicular to each other.

Convert the current velocity to meters-per-second.

v= 58.0 km.h

= ( 58.0 / (3600/1 h)) x (1000 m/ 1 km)

= 58.0/3600 x 1000 =  16.1 m/s.

Convert the acceleration due to braking to meters-per-second-squared (m/s).

a=  \(a = \frac{v^{2} }{r} \\\\= \frac{16}{195} \\=1.3312 m/s^{2}\)

Since the two accelerations are considered to be perpendicular to each other, the resultant acceleration can be found using the Pythagorean Theorem

a = 1.73 m/s2.

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Answer:

a: True centrifuge works on centripetal force.

b: False separating funnel can't be used to separate blood cells from samples.

e: False separating funnel cannot separate milk and water.

f: Condenser receives high pressure gas from the compressor and convert this gas to a liquid.

No, according to the first law, whether a certain amount of energy is added by doing work on the system or by adding heat, the internal energy will change in the same way.

A thermodynamic system's total internal energy is defined as the energy it possesses. It consists of both internal kinetic energy and potential energy contributions, and it is the energy required to develop or prepare the system in its current internal condition. The system's energy gains and losses resulting from modifications to its internal state are tracked by this mechanism. It excludes all external energies from surrounding force fields as well as the kinetic energy of the system's overall motion. The first law of thermodynamics, which is based on the idea that an isolated system's internal energy is constant, is stated as the law of conservation of energy. An vast quality is the internal energy.

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The linear velocity in terms of the angular velocity is,

where,

The angular velocity in terms of the linear frequency is,

Thus, the linear velocity in terms of linear frequency is,

The linear velocity in terms of the displacement and time is,

The relation given in the first option is the expression for centripetal acceleration.

Thus, option a is the correct answer.

The formula Work = Force x Distance can be used to calculate the amount of work done. In this case, the applied force is 120 N, and the distance traveled is 15 m.

Work equals Force x Distance = 120 N x 15 m = 1800 J

As a result, the answer is 1,800 J.

It is important to remember that work is a scalar quantity whose value is determined by the direction of the force and displacement. The work done is positive if the force and displacement are both in the same direction. If they are pointing in opposite directions, the work is negative. Because the force and displacement are both in the same direction in this case, the work done is positive.

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Answer:

Explanation:

1) Hypermetropia (better known as Farsighted- this is why nearby objects seem blurry for him)

2) In such instances, image are typically formed farther from the near point

3) Such defects are quite common so there are common procedures such as using convex lens which can restore the sight to normal.

Answer:

m = 70 kg

Explanation:

We have,

Weight of Simba on Earth is 687 N

It is required to find his mass.

The net force acting on him is the force of gravity or its weight. It is given by :

\(W=mg\\\\m=\dfrac{W}{g}\\\\m=\dfrac{687}{9.8}\\\\m=70\ kg\),  g = 9.8 m/s²

So, his mass is 70 kg.

Answer:

5kg

Explanation:

The cart with the least amount of mass will result in the fastest acceleration.

The cart with the fastest acceleration is 5 kg cart because its mass is the smallest.

The given parameters;

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

F = ma

The acceleration of the 5 kg cart is calculated as follows;

\(a = \frac{F}{m} \\\\a = \frac{90}{5} = 18 \ m/s^2\)

The acceleration of the 6 kg cart is calculated as follows;

\(a = \frac{F}{m} \\\\a = \frac{90}{6} = 15 \ m/s^2\)

The acceleration of the 8 kg cart is calculated as follows;

\(a = \frac{F}{m} \\\\a = \frac{90}{8} = 11.25 \ m/s^2\)

The acceleration of the 9 kg cart is calculated as follows;

\(a = \frac{F}{m} \\\\a = \frac{90}{9} = 10 \ m/s^2\)

Thus, the cart with the fastest acceleration is 5 kg cart because its mass is the smallest.

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The wavelength of a wave can be measured in the units of length (L) such as meters (m), centimeters (cm), and kilometers (km), etc.

Wavelength is a property of wave which can be measured as the distance between any two adjacent crests of a transverse wave or any two adjacent compressions of a longitudinal wave.

Wave is usually measured in the units of distance which include meters (m), centimeters (cm), and kilometers (km). Wavelength is related to the energy of a wave. Short-wavelength waves usually have more energy than that of long-wavelength waves of the same amplitude.

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The force get multiplied 3 times. if a women raised a 600-newton box. She used 200 newtons of effort.

Using a lever, a women raised a 600-newton box. She used 200 newtons of effort. the force multiplied to:

Here, The multiplied force = force required for the box / force used for using lever

                                            = 600 / 200

                                            = 3

Hence, the force get multiplied 3 times.  

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Answer:

Neptune

Explanation:

Answer:

Neptune has that feature. Hope this helped!!! ^D^

Explanation:

The vertical speed of the rod varies inversely as the rotational speed for a given number of complete rotations

The equation that gives the vertical velocity, v₀ is  \(\, \underline{v_0= \dfrac{ g \cdot \pi \cdot n}{ \omega_0 }}\)

Reason:

From a similar question, the given parameters appear to be correctly given as follows;

The vertical speed of the rod = v₀

Angular velocity of the = ω₀

Required;

The value of, v₀, so that the rod has made exactly, n, number of turns when it returns to his hand

Where;

n = An integer

Solution;

The time the rod spends in the air is given as follows;

\(Height, \ h = u \cdot t - \dfrac{1}{2} \cdot g \cdot t^2\)

Where;

g = Acceleration due to gravity

t = Time of motion

When the rod returns to his hand, we have, h = 0, therefore;

\(0 = u \cdot t - \dfrac{1}{2} \cdot g \cdot t^2\)

\(u \cdot t = \dfrac{1}{2} \cdot g \cdot t^2\)

\(t^2 = \dfrac{u \cdot t }{\dfrac{1}{2} \cdot g } = \dfrac{2 \cdot u \cdot t }{g }\)

\(Time, \ t = \dfrac{2 \cdot u }{g }\)

We have;

\(Angular \ velocity, \ \omega_0 = \dfrac{ 2 \cdot \pi \cdot n}{t} \ (required)\)

\(\omega_0 = \dfrac{ 2 \cdot \pi \cdot n}{ \dfrac{2 \cdot v_0 }{g }} = \dfrac{ g \cdot \pi \cdot n}{ v_0 }\)

Therefore;

\(The \ vertical \ velocity, \, \underline{v_0= \dfrac{ g \cdot \pi \cdot n}{ \omega_0 }}\)

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Answer:

E = -477 N/C

Explanation:

Given that,

Charge, \(q=-4.77\times 10^{-9}\ C\)

We need to find the electric field at a point 0.3 m to the right of the charge.

We know that the electric field at a distance r is given by :

\(E=\dfrac{kq}{r^2}\\\\E=\dfrac{9\times 10^9\times 4.77\times 10^{-9}}{(0.3)^2}\\\\E=-477\ N/C\)

So, the electric field is -477 N/C.

Answer:

10 m/s

Explanation:

Answer:

Explanation:

For a block understanding simple harmonic oscillation,

the maximum amplitude(A) = 7.5cm

                      A  = 0.075m

Let angular frequency be (w)

Then,max acceleration of platform = w²A……   {where, A is amplitude}

and, Fictitious force experienced by platform = mw²A

At mean position, acceleration, a=0

⇒N=mg (N = normal reaction)

Below the mean positon, acceleration is upwards (towards the mean position)

∴N−mg=ma or

 N=m(g+a)

Above the mean position, acceleration is downwards (towards the mean position)

∴mg−N=ma or

  N=m(g−a)

In this case, N decreases as 'alpha' increases. At the extreme position acceleration is maximum (=ω²A) so N is minimum. When the block leaves contact with the plank N becomes zero.

So,

       0= m(g-w²A)

       w²A=g

       w=√g/A

       w=√9.8/0.075

       w=11.43 rad/ sec

In Hz,

       w= 11.43/2π = 1.82Hz

So, maximum frequency at which the block will stay on the platform is 1.82Hz

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Answer:

The final angular speed is 16.1 rad/s

Explanation:

Given;

initial moment of inertia, I₁ = 2.56 kg.m²

final moment of inertia, I₂ = 0.40 kg.m²

initial angular speed, ω₁ = 0.4 rev/s = 2.514 rad/s

Apply the principle of conservation of angular momentum;

I₁ω₁ = I₂ω₂

where;

ω₂ is the final angular speed

ω₂ = (I₁ω₁) / (I₂)

ω₂ = (2.56 x 2.514) / (0.4)

ω₂ = 16.1 rad/s

Therefore, the final angular speed is 16.1 rad/s

The given statement "the chemically active material on a battery’s negative plates is lead peroxide" is False. The chemically active material on a battery's negative plates is not lead peroxide.

It is typically lead, while the positive plates of a lead-acid battery contain lead dioxide. In a lead-acid battery, the negative plate is made of sponge lead, which is a porous form of lead.

The positive plate, on the other hand, is made of lead dioxide (\(PbO_{2}\)). Lead peroxide (\(PbO_{2}\)) is commonly used in the positive plates of other types of batteries, such as nickel-cadmium batteries, but not in lead-acid batteries.

Therefore, the statement that lead peroxide is the chemically active material on a battery's negative plates is false.

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Answer:

A) the liquid particals move slower

Explanation:

vapor has a higher temp and have more energy than liquid so it's not c or d. and liquid has a lower boiling point than vapor

On the moon you weigh 6 times lighter so for this problem you multiply 140n by 6.

Your weight on the Moon is 16.5% what you would experience on Earth. In other words, if you weighed 100 kg on Earth, you would weigh a mere 16.5 kg on the Moon. For you imperial folks, imagine you tipped the scales at 200 pounds.

It’s because of the lower gravity on the Moon. Objects on the surface of the Moon experience only 16.5% of the gravity they would experience on Earth.

The mass of the Moon is only 1.2% the mass of the Earth, so you might expect it to have only 1.2% of the gravity. But it’s only 27% of the size of the Earth, so when you’re standing on the surface of the Moon, you’re much closer to its center of gravity.

Therefore, On the moon you weigh 6 times lighter so for this problem you multiply 140n by 6.

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Answer:

a. 24 m³, 7.0×10⁴ Pa

Explanation:

Use Bernoulli's equation:

P₁ + ½ ρ v₁² + ρgh₁ = P₃ + ½ ρ v₃² + ρgh₃

Given or assumed:

P₁ = 0 Pa

v₁ ≈ 0 m/s

h₁ = 10 m

P₃ = 0 Pa

h₃ = 2 m

ρ = 1000 kg/m³

g = 9.8 m/s²

Substituting and simplifying:

ρg (10) = ½ ρ v₃² + ρg (2)

10g = ½ v₃² + 2g

(Notice this is simply an energy balance.)

Solving for v₃:

v₃ = √(16g)

v₃ = 12.5 m/s

Volumetric flow rate is velocity times area:

Q = v₃ A₃

Q = (12.5 m/s) (0.0160 m²)

Q = 0.200 m³/s

After 2 minutes, the volume discharged is:

V = (0.200 m³/s) (120 s)

V = 24.0 m³

Using Bernoulli's principle again:

P₂ + ½ ρ v₂² + ρgh₂ = P₃ + ½ ρ v₃² + ρgh₃

Since h₂ = h₃ and P₃ = 0:

P₂ + ½ ρ v₂² = ½ ρ v₃²

P₂ = ½ ρ (v₃² − v₂²)

Since volumetric flow is constant (mass is conserved):

Q = Q

v₂ A₂ = v₃ A₃

v₂ = v₃ A₃ / A₂

Substituting:

P₂ = ½ ρ (v₃² − (v₃ A₃ / A₂)²)

P₂ = ½ ρ v₃² (1 − (A₃ / A₂)²)

P₂ = ½ (1000 kg/m³) (12.5 m/s)² (1 − (0.0160 / 0.0480)²)

P₂ = 69,700 Pa

P₂ ≈ 7.0×10⁴ Pa

It will need a force acceleration