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velikii [3]
4 years ago
5

Which statement about astrology is not true?

Physics
2 answers:
Brrunno [24]4 years ago
5 0
A. planets do not affect birth defects
sweet-ann [11.9K]4 years ago
5 0

Answer:

C. Astrology made contributions to the science of astronomy.

Explanation:

Astrology is predicting the future or personality of someone basis their zodiac signs and the positions of celestial objects at the time of their birth. It is not based on latest facts of astronomy and doesn't take the change in the state of celestial objects in their prediction.

That is why it is called a pseudoscience. It has not contributed in the science of Astronomy. In fact the astrologers used the findings of astronomy to crate this pseudoscience. That is why statement 3 is not true about astrology.

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What happens to the temperature and thermal energy of water when it is heated in a pot on the stove?
Gekata [30.6K]

Answer:

Both its temperature and its thermal energy will increase.

Explanation:

Objects are made up of particles. For example, water is made up of water molecules. The kinetic energy of a particle of mass m and velocity v is equal to \displaystyle \frac{1}{2}\, m \cdot v^2,  

  • The thermal energy of an object measures the total kinetic energy of all its particles.
  • On the other hand, the temperature of that object measures the average kinetic energy of all these particles.

Water in that pot gains energy when the pot is heated. That would increase the total kinetic energy of these water molecules.

What about temperature? Assume that the number of water particles in the pot stays the same- In other words, assume that water in the pot does not evaporate. As the total kinetic energy of these water molecules increase, their average kinetic energy would also increase. As a result, it would appear that the temperature of water in that pot has increased.

7 0
4 years ago
Find the frequency of a tuning fork that takes2.50×10−3s to complete one oscillation.
maksim [4K]

The frequency of a tuning fork that takes2.50×10⁻³ s to complete one oscillation would be 400 Hz.

<h3>What is the frequency?</h3>

It can be defined as the number of cycles completed per second. It is represented in hertz and inversely proportional to the wavelength.

As given in the problem a tuning fork takes 2.50×10⁻³ s to complete one oscillation.

Frequency = 1/time period of the oscillation

Frequency of the tuning fork = 1/time period

                                                   =1/2.50×10⁻³

                                                   =400 Hz

Thus the frequency of a tuning fork comes out to be 400 Hz.

Learn more about frequency here, refer to the link;

brainly.com/question/14316711

#SPJ1

6 0
2 years ago
The carbon cycle is powered by which two processes?
Arada [10]

Answer:

the answer is the last one

Explanation:

here is the definition:

(i know how to explain the answer, its merely unnecessary being that there is an offical definition.)

<em>the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.</em>

4 0
3 years ago
Read 2 more answers
You have a glass ball with a radius of 2.00 mm and a density of 2500 kg/m3. You hold the ball so it is fully submerged, just bel
Maurinko [17]

Answer:

(a) check attachment

(b)5 m/s²

Explanation:

Given: radius = 2.00mm: density = 2500kg/m³: viscosity of glycerin = 1.5pa: decity of glycerin = 1250kg/m³: g = 10N/kg = 10m/s²: Fdrag = 6πnrv

(a) for answer check attachment.

(b) For the magnitude of the balls initial acceleration:

     Initial net force(f) = mg - upthrust

                                  = mg - (\frac{m}{p} )pg.g

     acceleration (a) = Acceleration(a)=\frac{f}{m}\\=g - (\frac{pg}{p})g\\=g(1-\frac{pg}{p} )\\=10(1-\frac{1250}{2500} )\\a=10(1-0.5)\\a=5 m/s²

c.) fromthe force diagram in the attachment; when the ball attains terminal velocity the net force will be zero(0)

                                mg=6πnrv + upthrust

d.) For the magnitude of terminal velocity:

                                             mg=6πnrv + (\frac{m}{p})pg.g\\\\(\frac{4}{3}πr^{3} p)g=6πnrv +\frac{4}{3}πr^3pg.g\\\\V = \frac{2}{9}.\frac{(2*10^{-3})^{2}*(2500-1250)*10}{1.5}\\\\=0.79cm/s

e.) when the ball reaches terminal velocity, the acceleration is zero (0)

8 0
3 years ago
What is the fastest thing known to man?
lana66690 [7]
Blazing Speed: The Fastest Stuff in the Universe. A sequence of radio observations shows a plasma blob moving away from a blazar's core (right) over about 8.4 months. SAN DIEGO -- If you're light, it's fairly easy to travel at your own speed -- that is to say 186,282 miles per second or 299,800 kilometers per second
4 0
3 years ago
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