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3 years ago

Thunderclouds and storms come from which type of front?

Physics

2 answers:

Lena [83]3 years ago

8 0

Thunder clouds and storms are both come from the cold front.

Answer: Option A

<u>Explanation:</u>

The cold front is the zone of transition where the warm air is lifted up by the effect of the cold air. It is actually a displacement. The cold fronts are seen moving from the North West region to the southeast region.

The air behind the cold front is dry and as the name suggests are much colder. Typically, wind becomes gusty as the cold front passes.

So, temperatures fall suddenly and heavy rain occurs, sometimes with hail, lightning, and thunder. Rising warm air in the front creates tubular clouds and thunderstorms.

alekssr [168]3 years ago

3 0

Answer:

I believe it's A. Cold Front.

Hope this helps, Mark as brainiest please. :-)

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What stands in for a "creator" in scientists view of the universe?

inessss [21]

In scientists view of the universe The creator is replace by: (B). The "Big Bang"

<h3>Meaning of Big Bang</h3>

The Big bang is a theory propagated by scientist and astronomers to replace the creator.

The Big Bang is said to be a reason for the universe and all the planets in it. Scientist say the universe started as just a single point with very high temperature and density, and then here comes the big bang.

In conclusion, In scientists view of the universe The creator is replace by: The "Big Bang"

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2 years ago

A plane starting from rest accelerates to 40 m/s in 10 s. How far did the plane travel during this time?

andrew-mc [135]

Answer:

400 meters

Explanation:

using the equation:

speed = distance/time
it would look like this when plugged in: 40=d/10
d (distance) is the unknown variable, so you have to solve for that
multiply both sides by 10 since you want to separate d to solve its number.
10d/10=40 × 10
the two tens on the d part of the equation would cancel out, leaving only d.
Therefore, d = 400

Hopefully this helps.

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3 years ago

In the aerials competition in skiing, the competitors speed down a ramp that slopes sharply upward at the end. the sharp upward

ladessa [460]

<u>Answer:</u>

The skier’s launch speed = 17.08 m/s

<u>Explanation:</u>

The motion of skiing is projectile motion.

Projectile motion has two types of motion Horizontal and Vertical motion.

Vertical motion:

We have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Considering upward vertical motion of projectile.

In this case, Initial velocity = vertical component of velocity = u sin θ, acceleration = acceleration due to gravity = -g $m/s^2$ and final velocity = 0 m/s.

0 = u sin θ - gt

t = u sin θ/g

Total time for vertical motion is two times time taken for upward vertical motion of projectile.

So total travel time of projectile = 2u sin θ/g

Horizontal motion:

We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

In this case Initial velocity = horizontal component of velocity = u cos θ, acceleration = 0 $m/s^2$ and time taken = 2u sin θ /g

So range of projectile, $R=ucos\theta*\frac{2u sin\theta}{g} = \frac{u^2sin2\theta}{g}$

Vertical motion (Maximum height reached, H) :

We have equation of motion, $v^2=u^2+2as$ , where u is the initial velocity, v is the final velocity, s is the displacement and a is the acceleration.

Initial velocity = vertical component of velocity = u sin θ, acceleration = -g, final velocity = 0 m/s at maximum height H

$0^2=(usin\theta) ^2-2gH\\ \\ H=\frac{u^2sin^2\theta}{2g}$

We have θ = 63° and H = 11.8 meter.

Substituting

$11.8=\frac{u^2sin^263}{2*9.81}\\ \\ u^2=\frac{11.8*2*9.81}{sin^263}=\frac{231.516}{0.794} =291.58\\ \\ u=17.08m/s$

The skier’s launch speed = 17.08 m/s

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4 years ago

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A solenoid of length 5.0 cm has a cross sectional area of 1.0 cm2 and has 300 uniformly spaced turns. The solenoid is wrapped in

OleMash [197]

The calculated mutual inductance is 8.544 x 10⁻⁵ H.

Two coils have a mutual inductance of 1 henry when emf of 1 volt is induced in coil 1 and when the current flowing through coil 2 is changing at the rate of one ampere per second.

Length of the solenoid= 5.0 cm

Area of cross-section=1.0 cm²

no of spaced turns=300 turns

turns of insulated wire=180 turns

Mutual inductance (M) = μ₀μr N1N2 A/ L

=(4xπx 10⁻⁷) x (6.3 x 10⁻³) x 300 x 180 x 1/ 5

=79.12 x 10⁻¹⁰ x 54000 / 5

=8.544 x 10⁻⁵ H

hence, the mutual inductance is 8.544 x 10⁻⁵ H.

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Ede4ka [16]

One problem with weight training as a way to improve overall health is that the results of a weight-training program are not measurable.

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3 years ago

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