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geniusboy [140]
3 years ago
10

If the Doppler radar is measuring an echo of 41 dBZ, what is the corresponding rainfall rate?

Physics
2 answers:
Rashid [163]3 years ago
3 0

Answer:

R = 0.52 in/h

Explanation:

The rainfall rate (R) can be calculated using the Marshall-Palmer equation:

R = (\frac{10^{\frac{dBZ}{10}}}{200})^{\frac{5}{8}}                         (1)

The dBZ given is equal to 41, so introducing this valor into the equation (1) we can find the rainfall rate:

R = (\frac{10^{\frac{41}{10}}}{200})^{\frac{5}{8}} = 13.32 mm/h = 0.52 in/h    

Therefore, the rainfall rate corresponding to an echo of 41 dBZ is 0.52 in/h.

I hope it helps you!  

Fantom [35]3 years ago
3 0

Answer:R = 0.52 in/h

Explanation:

The rainfall rate (R) can be calculated using the Marshall-Palmer equation:

                        (1)

The dBZ given is equal to 41, so introducing this valor into the equation (1) we can find the rainfall rate:

   

Therefore, the rainfall rate corresponding to an echo of 41 dBZ is 0.52 in/h

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natima [27]

She threw the marshmallow at a speed of around 4.76 m/s.The formula for the horizontal range gives the velocity.

<h3>What is projectile motion?</h3>

The motion of an item hurled or projected into the air, subject only to gravity's acceleration, is known as projectile motion.

The item is known as a projectile, and the course it takes is known as a trajectory. Falling object motion is a simple one-dimensional kind of projectile motion with no horizontal movement.

Given data;

The marshmallow was thrown at a distance of 2 meters

Range,R =  3 m

Initial velocity,u

The angle at which the marshmallow was thrown,θ = 30°

The acceleration due to gravity,g = 9.81 m/s²

The projectile's motion is divided into two parts: horizontal and vertical motion.

\rm R = \frac{u^2sin2 \theta }{g} \\\\ \rm R  = \frac{u^2sin2 \times (30) }{9.81} \\\\ u^2=\frac{2 \times 9.81 }{sin 60^0} \\\\ u^2=22.66 \\\\ u=4.76 \ m/sec

Hence, she throws the marshmallow at a speed of 4.76 m/sec.

To learn more about the projectile motion refer to the link;

brainly.com/question/11049671

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4 0
1 year ago
Which of these has the least chemical energy?
madreJ [45]

The answer is option D a gallon of gasoline.

Explanation:

A gallon of gasoline has the least chemical energy. The energy content of gallon of gasoline is about 132,000 Btu. The gasoline produced is equivalent in energy terms to 4 kilowatt hours.

Gasoline has chemical potential energy stored in chemical bonds. Gasoline is called as gas or petrol, mixture of volatile, flammable liquid hydrocarbons are used as fuel for internal- combustion engines. It is used as solvent for oils and fats.

Gasoline gallon equivalent is the alternative fuel taken to equal the energy content of one liquid gallon of gasoline.

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To heat the house, the boiler transfers 15 MJ of energy in 10 minutes.
Harrizon [31]

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8 0
2 years ago
is dimensionally correct relation necessarily to be a correct physical relation? explain with example.​
Andreas93 [3]

Answer: hope it helps you...❤❤❤❤

Explanation: If your values have dimensions like time, length, temperature, etc, then if the dimensions are not the same then the values are not the same. So a “dimensionally wrong equation” is always false and cannot represent a correct physical relation.

No, not necessarily.

For instance, Newton’s 2nd law is  F=p˙ , or the sum of the applied forces on a body is equal to its time rate of change of its momentum. This is dimensionally correct, and a correct physical relation. It’s fine.

But take a look at this (incorrect) equation for the force of gravity:

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It has all the nice properties you’d expect: It’s dimensionally correct (assuming the standard traditional value for  G ), it’s attractive, it’s symmetric in the masses, it’s inverse-square, etc. But it doesn’t correspond to a real, physical force.

It’s a counter-example to the claim that a dimensionally correct equation is necessarily a correct physical relation.

A simpler counter example is  1=2 . It is stating the equality of two dimensionless numbers. It is trivially dimensionally correct. But it is false.

4 0
3 years ago
URGENTTT PLEASE HELP
mel-nik [20]
This doesn’t make any sense
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