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3 years ago

11

In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms. What is the current during the strike? (The answer i

s not 12500 or 1250)

1 answer:

Snezhnost [94]3 years ago

3 0

Current = (charge) / (time) = (2.5) / (0.0002) = <em>12,500 Amperes</em>

The only thing wrong with the answer "12500" is that it lacks a unit.

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Describe how air resistance would affect a falling object

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Answer:

With air resistance, acceleration throughout a fall gets less than gravity (g) because air resistance affects the movement of the falling object by slowing it down. How much it slows the object down depends on the surface area of the object and its speed

Explanation:

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3 years ago

An action that has the ability to change an object’s state of motion is

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2 years ago

contractor will use a package emulsion having a specific gravity of 1.25 and relative bulk strength of 130 to open an excavation

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Answer:

The burden distance is 7 ft

Solution:

As per the question:

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3 years ago

Curious George is whirling a 2.0 kg bunch of bananas on a smooth floor in a circular path having a radius of 0.50 m. What force

Sedaia [141]

Answer:

The force will be $F_{c}=2.47 N$

Explanation:

Let's use the centripetal force equation.

$F_{c}=m\omega ^{2}R$

Where:

m is the mass of the bunch of bananas

ω is the angular speed

R is the radius

Now, 1 rev every 4 seconds or 0.25 rev/sec is the angular speed, but we need to write this speed in rad per second.

$\omega =0.25\frac{rev}{s}=0.25*2\pi \frac{rad}{s}=1.57 \frac{rad}{s}$

FInally, the force will be:

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I hope it helps you!

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3 years ago

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Answer:

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Explanation:

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2 years ago