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2 years ago

How does radiation transfer thermal energy from the Sun to Earth?

2 answers:

5 0

If you have stood in front of a fireplace or near a campfire, you have felt the heat transfer known as radiation. The side of your body nearest the fire warms, while your other side remains unaffected by the heat. Although you are surrounded by air, the air has nothing to do with this transfer of heat. Heat lamps, that keep food warm, work in the same way. Radiation is the transfer of heat energy through space by electromagnetic radiation.

Natali [406]2 years ago

4 0

Answer:

adiation transfers thermal energy from the sun to earth by electromagnetic waves. Electromagnetic waves transfer energy with or without matter.

Step-by-step explanation:

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Mala is y years old. Her sister is 4 years older than mala . Write expréssion in simplest form that represents the sum of ages o

Evgen [1.6K]

Answer:

$2(y+2)$

Step-by-step explanation:

Let

y --->Mala's age

x---> sister's age

we know that

$x=y+4$ ---> equation A

The sum of ages of the sisters is

$x+y$

substitute equation A in the expression of the sum of ages

$(y+4)+y=2y+4$

simplify

$2(y+2)$

8 0

2 years ago

.Calculate the time in which ₦1,500 will amount to ₦9,000 at 20% per annum.

katovenus [111]

Answer:

30 yrs

Step-by-step explanation:

SI = PRT/100

T = I × 100/PR

= 9000×100/1500×20

= 900000/30000

= 30 yrs

3 0

2 years ago

37. The sum of first three terms in an arithmetic progression is 24 and the sum of their squares is 224. Find the first three te

Airida [17]

Answer:

12, 8, and 4

Step-by-step explanation:

Given

a + d + a + a - d = 24

3a = 24 ⇒ [ a = 8 ]

and (a + d)² + a² + (a - d)² = 224

3a² + 2d² = 224

2d² = 224 - 192 = 32

d² = 16

[ d = ±4 ]

∴ The first three terms to A.P are

a + d = 8 + 4 = 12

a - = 8

a - d = 8 - 4 = 4

∴ Three terms are 12 , 8, and 4

8 0

1 year ago

Suppose that many large samples were taken from a population and the sample proportion centered around 0.25 which of the followi

timurjin [86]

Answer:

0.25

Step-by-step explanation:

Hope it helps, sense it’s centered around 0.25 then the parameter would be 0.25

3 0

2 years ago

What is the equation to this graph above

nexus9112 [7]

Answer:

y = -5/2x + 1

Step-by-step explanation:

y=mx+b

m is slope

b is y intercept

5 0

2 years ago

Read 2 more answers