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Vedmedyk [2.9K]
2 years ago
6

a geologist is studying another planet. she wants to make a compositional and a structural model of the planets interior. T o do

this she needs to design investigations to answer a number of scientific questions for each question, state whether the answer will help develop a compositional model, structural model or both
Physics
1 answer:
Aleonysh [2.5K]2 years ago
7 0

Answer:

Is there a magnetic field?

both

What is the average density of the planet?

both

At what depths do seismic waves reflect?

structural

Does the magnetic field change over time?

both

What rock types are found on the surface?

compositional

What speed do seismic waves travel through different layers?

both

Explanation:

Questions about Earth’s magnetic field, average density, and the velocity of seismic waves will provide evidence for both models. The depths from which seismic waves reflect will inform structural models. The types of rock found on the surface will inform compositional models.

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How much electrical energy is used by the river cooker oven rated 800 W ,230 V is switched on for 30 minutes
mariarad [96]

Answer:

E = 1440 kJ

Explanation:

It is given that,

Power of a cooker oven is 800 W

Voltage at which it is operated is 230 V

Time, t = 30 minutes = 1800 seconds

We need to find the electrical energy used by the cooker oven. The product of power and time is equal to the energy consumed. So,

E=P\times t\\\\E=800\ W\times 1800\ s\\\\E=1440000\ J\\\\\text{or}\\\\E=1440\ kJ

So, electrical energy of 1440 kJ is consumed by the cooker oven.

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siniylev [52]

Answer:

12.5

Explanation:

5 0
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4 0
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rosijanka [135]
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6 0
3 years ago
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iVinArrow [24]
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Hope this was helpful :)
8 0
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