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sertanlavr [38]
3 years ago
8

Brody is barbecuing hamburgers on the grill. He notices that the coals are ready for cooking because he feels the warmth of the

coals and sees that they are glowing red. What types of electromagnetic waves is he detecting?
Physics
1 answer:
hodyreva [135]3 years ago
8 0

Answer:

i think the answer is infrared

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The apparent height of a building 10.5 km away is 0.02 radians. What is the approximate height of the building to the nearest me
Ksenya-84 [330]

Answer:

Approximate height of the building is 23213 meters.

Explanation:

Let the height of the building be represented by h.

0.02 radians = 0.02 × \frac{180^{o} }{\pi }

                     = 0.02 x (180/\frac{22}{7})

0.02 radians  = 1.146°

10.5 km = 10500 m

Applying the trigonometric function, we have;

Tan θ = \frac{opposite}{adjacent}

So that,

Tan 1.146° = \frac{h}{10500}

⇒ h = Tan 1.146° x 10500

      = 2.21074 x 10500

      = 23212.77

h = 23213 m

The approximate height of the building is 23213 m.

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3 years ago
Can someone please answer this, ill give you brainliest Would be very appreciated.
mina [271]

Water cycle basically involves the change of water into liquid to vapour and again to liquid states through a cyclic manner .

The answers are

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  2. Transpiration
  3. Condensation
  4. precipitation
  5. runoff
  6. seapage
  7. ground water
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What are alkaline earth metals used for?
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Answer:

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Explanation:

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A car travels from City A to City B to the north. It takes 4 hours, and the road mileage is 200 miles. The map shows that
ikadub [295]

Answer:

The average speed would be the 200 miles/4 hours.

The average velocity would be the net displacement to the north at 80 miles/4 hrs = mph

Explanation:

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Suppose a pendulum starts with a potential energy of 100 J. Assuming the pendulum has a height of 0 m at the bottom of its swing
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Answer:

100 J

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