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4 years ago

What's an example of radiation in the kitchen

Physics

2 answers:

Aleks [24]4 years ago

5 0

A microwave causes radiation in the kitchen.

Anika [276]4 years ago

4 0

Thermal radiation are the major one

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When thermal insulation, such as spun glass or rock wool, is placed beneath the roof of a house, then in cold weather the insula

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Answer:

c. slow the flow of heat from inside the house to the outside.

Explanation:

Thermal insulation not completely stops the flow of heat but slow down the process of flowing of heat from inside the house to the outside.

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3 years ago

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Which statement describes an AC generator?

gregori [183]

AC (Alternating Current) generator is a device that produces an electromotive force.This generator produces alternating current. Alternating current is electric current that changes its direction many times a second, at regular intervals. This is the type of current with which customers are supplied in the energy distribution network.

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4 years ago

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In 1998, scientists discovered that the expansion of the universe has been accelerating.

Lynna [10]

Dang that’s a cool fact bro

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3 years ago

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Which of the following statements is correct about air temperature? When air temperature is higher, the weather is warmer. Warm

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3 years ago

#27 question

Furkat [3]

So, the initial altitude of the parachuter is approximately <u>(C). 123 m</u>.

<h2>Introduction</h2>

Hi ! In this question, I will help you. In this question, you will learn about the fall time of the free fall motion. Free fall is a downward vertical motion without being preceded by an initial velocity. When moving in free fall, the following equations apply:

<h3>The equation for calculating the height (h)</h3>

$\boxed{\sf{\bold{h = \frac{1}{2} \cdot g \cdot t^2}}}$

<h3>The equation for calculating the time (s)</h3>

$\boxed{\sf{\bold{t = \sqrt{\frac{2 \cdot h}{g}}}}}$

<h3>The equation for calculating the velocity (v)</h3>

$\boxed{\sf{\bold{v = \sqrt{2 \times g \times h}}}}$

With the following condition :

t = interval of the time (s)
h = height or any other displacement at vertical line (m)
g = acceleration of the gravity (m/s²)
v = velocity (m/s)

<h2>Problem Solving</h2>

We know that :

t = interval of the time = 5 s
g = acceleration of the gravity = 9.81 m/s²

What was asked :

h = height or displacement at vertical line = ... m

Step by Step :

$\sf{h = \frac{1}{2} \cdot g \cdot t^2}$

$\sf{h = \frac{1}{2} \cdot 9.81 \cdot 5^2}$

$\sf{h = \frac{245.25}{2}}$

$\boxed{\sf{h = 122.625 \: m \approx 123 \: m}}$

<h3>Conclusion</h3>

So, the initial altitude of the parachuter is approximately 123 m (C.)

Time that needed for hearing the splash of fallen rock in the well brainly.com/question/26485521
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2 years ago