3 years ago

The process of heat radiation is the ONLY method of heat transfer that can occur _____.

Physics

2 answers:

Neko [114]3 years ago

7 0

B) through space I am sorry if it is wrong

dimaraw [331]3 years ago

6 0

Answer:

B) through space.

Explanation:

By the process of radiation, heat moves through space in the form of electromagnetic waves. Electromagnetic waves, unlike compression waves, can move through empty space.

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A child throws a ball vertically upward to a friend on a balcony 28 m above him. The friend misses the ball on its upward flight

photoshop1234 [79]

Answer:

$t=1.9 sec$

Explanation:

From the question we are told that:

Height $h=28m$

Time $t=3s$

Generally the Newton's equation for Initial velocity upward is mathematically given by

$s=ut+\frtac{1}{2}at^2$

$28=3u-\frac{1}{2}*9.8*3^2$

$u=24.03m/s$

Generally the velocity at elevation and depression occurs as ball arrives and passes through S=28

$v=\sqrt{24.03-2*9.8*28}$

$v=5.35m/s and -5.35m/s$

Generally the Newton's equation for time to reach initial velocity is mathematically given by

$v=u+at$

$5.35=24.03-9.8t$

$t=\frac{28.03-5.35}{9.8}$

$t=1.9 sec$

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3 years ago

Can the object be in motion if the net force acting on it is zero? explain.

artcher [175]

When object travels with uniform velocity, no force acts on it. hence , yes.

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4 years ago

sunlight, wind, and running water are essentially "free." Yet renewable energy sources are a very small part of our energy consu

dimulka [17.4K]

The heat and energy of coal burning is more easier and more efficient to turn into electricity than any method using renewable resources.

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3 years ago

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The ozone layer protects us from the harmful effects of which type of radiation?

leonid [27]

Answer:

Hey there

The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation

Can u have brainly

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3 years ago

Determine the mass of a sphere with a radius of 8 cm having a density of 7500 kg / m3

Aliun [14]

Answer:

Explanation:

V=2140CM3

M=VOLUME*DENSITY

7500kg/m3=7.5g/cm3

2140cm3*7.5g/cm3=16050

16050g

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2 years ago