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S_A_V [24]
3 years ago
13

Do you agree or disagree with the theories about the permian triassic extinction

Physics
1 answer:
Lyrx [107]3 years ago
6 0
Permian-Triassic extinction theory stated that the mass extinction happened because huge asteroids falls down the earth and wiped out the dinosaur era. 
Personally, i don't believe this theory because many pieces of evidence was found from the fossil that indicated the die-out happened gradually over million of years which contradict the current extinction theory
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Carey and Marcy are performing a lab to determine the speed of sound in air with the apparatus that was demonstrated in the vide
andre [41]

Answer:

the frequency is the fundamental and distance is    L = ¼ λ

Explanation:

This problem is a phenomenon of resonance between the frequency of the tuning fork and the tube with one end open and the other end closed, in this case at the closed end you have a node and the open end a belly, so the wavelength is the basis is

          λ = 4 L

In this case L = 19.4 cm = 0.194 m

let's use the relationship between wave speed and wavelength frequency and

           v = λ f

where the frequency is f = 440 Hz

           v = 4 L f

let's calculate

           v = 4 0.194 440

           v = 341.44 m / s

so the frequency is the fundamental and distance is

                  L = ¼ λ

5 0
4 years ago
Marcus wants to use two objects to compare the sizes of a proton and an electron. If he uses a basketball for a proton, which ob
Rudik [331]

Answer:

B

Explanation:

4 0
3 years ago
Different objects don't heat at the same rate because they have different
Kaylis [27]
Specific heat

Let me know if you need further explanation!
7 0
3 years ago
one of the ways, covered in the article and in class, that we charged an object was rubbing it against carpet on the floor true
astraxan [27]

Answer:

It is possible to statically charge objects by rubbing it against carpet fibers, but I'm not sure if that was in the article that you read.

Explanation:

Static charge can build up via carpet fibers.

5 0
3 years ago
A train leaves the station at the 0.0m marker traveling with a constant velocity of 45.0 m/s. How many
Lelechka [254]

Answer:

119.88 km/h

Explanation:

1500/45=33.3

use a m/s to km/h calculator

put in 33.3 for m/s and you will get 119.88 km/h.

119.88 km/h.

5 0
3 years ago
Read 2 more answers
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