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3 years ago

Fronts are termed by the temperature of the air mass that overtakes another air mass. A. True B. False

Physics

2 answers:

Vikki [24]3 years ago

6 0

A. True
if cold air is replacing warm air it is a cold front and vice versa.

Reptile [31]3 years ago

6 0

Answer:

The Answer is B) False

Explanation:

The key word there is overtakes.

A weather front is a boundary separating two masses of air of different densities, and is the principal cause of meteorological phenomena outside the tropics.

Air masses create weather as they are moved by winds around the globe. Fronts develop at the boundary where two air masses with different temperatures—and, usually, different humidities—come into contact with each other or in essence collide.

The term front was suggested the creator of the word because the collision of two air masses reminded them of a battlefront during a military operation.

So air masses collide NOT overtake each other in order to form a front.

Cheers!

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The existence of the dwarf planet Pluto was proposed based on irregularities in Neptune's orbit. Pluto was subsequently discover

iris [78.8K]

Answer:

a) g1 = 8.467 10⁻¹⁴ m / s² , b) g2 = 5.65 10⁻¹⁰ m / s² , c) g2 / g1 = 6.6 10³

Explanation:

a) for this we will use Newton's second law where force is the force of universal gravitation

F = m a

G m M / r² = m a

a = g = G M / r²

By the effect of Pluto

g1 = 6.67 10⁻¹¹ 1.3 10²² / (3.2 10¹²)²

g1 = 8.467 10⁻¹⁴ m / s²

b) By the effect of Uranus

g2 = 6.67 10⁻¹¹ 8.68 10²⁵ / (3.2 10¹²)²

g2 = 5.65 10⁻¹⁰ m / s²

c) the relationship between these accelerations

g2 / g1 = 5.65 10⁻¹⁰ / 8.47 10⁻¹⁴

g2 / g1 = 0.66 10⁴

g2 / g1 = 6.6 10³

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3 years ago

suppose a 51 kg bungee jumper steps off the royal gorge bridge, in colorado. The bridge is situated 321 m above the arkansas riv

Akimi4 [234]

The total potential energy associated with the jumper at the end of his fall is 90,000 J.

The given parameters;

mass of the jumper, m = 51 kg
height of the bridge. h = 321 m
spring constant of the cord, k = 32 N/m
extension of the cord, x = 179 m - 104 m = 75 m

The total potential energy associated with the jumper at the end of his fall is calculated as follows;

U = ¹/₂kx² + mgΔh

where;

Δh is the change in height after falling

U = ¹/₂(32)(75)² + (51)(9.8)(0)

U = 90,000 J

Thus, the total potential energy associated with the jumper at the end of his fall is 90,000 J.

Learn more here:brainly.com/question/15731149

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2 years ago

1. Consider the position vs time graph at right.

Lemur [1.5K]

Answer:

Labor Day Weekend--No School

9/1/2021

Hello Students!

There will be no School on Friday Sept 3 and Monday Sept 6

All centers will be closed on Friday 9/3 and Monday 9/6

School will resume on TUESDAY, Sept 7

Enjoy your long weekend!

Explanation:

Labor Day Weekend--No School

9/1/2021

Hello Students!

There will be no School on Friday Sept 3 and Monday Sept 6

All centers will be closed on Friday 9/3 and Monday 9/6

School will resume on TUESDAY, Sept 7

Enjoy your long weekend!

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3 years ago

An apple is initially sitting on the bottom shelf of a pantry. A hungry physics student picks up the apple to eat it, but change

andre [41]

Answer:

Zero

Explanation:

Work done is given by multiplying force and distance moved. The distance is moved both positive and negative and it's equal distance. Since force used is the same hence work

W=F*d+ (F*-d)=0

Therefore, total work done is zero

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4 years ago

4. For a series of experimentally measured values give the definition of (a) average or mean value (b) the deviation from the me

Naya [18.7K]

Answer:

a) x_average = ∑ $x_{i}$ / n , b) Δx_{i} = x_{i} –x_average,

d) σ = √(1/n-1 ∑ Dx_{i}² )

Explanation:

Some definitions are requested

a) the average value is the sum of all the values divided by the number of them, if the uncertainties are random, this is the closest value to the real one

x_average = ∑ $x_{i}$ / n

b) The deviation from the mean value or absolute error is the measured value minus the average value

Δx_{i} = x_{i} –x_average

c) is the average value of the deviations

Δx_average = ∑ Δx_{i} / n

d) It is a measure of the dispersion of the values with respect to their average value, it takes the worst of all cases, widely used for large numbers of data

σ = √(1/n-1 ∑ Dx_{i}² )

Experimental results should be given as follows

Average value ± uncertainty and the standard deviation

(x_average + - Δx_average)

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3 years ago