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3 years ago

What is a possible explination for why the giant ice caps that covered a supercontinent in the paleozoic era melted?

Physics

2 answers:

natka813 [3]3 years ago

8 0

Answer:

Greenhouse effect

Explanation:

The Paleozoic era is followed by the Mesozoic era. The Mesozoic era consists of three periods Triassic, Jurassic, and Cretaceous.

During the cretaceous period the temperature of earth was 10 to 15 °C warmer than it is today. This warmth was caused due to the increase in volcanic activity of Earth. As the tectonic plates were moving this created mantle from the Earth's core rose to the surface causing increased volcanic activity. This volcanic activity increased the amount of CO₂ in the atmosphere thus creating the greenhouse effect.

Thepotemich [5.8K]3 years ago

6 0

The Paleozoic era spanned from the Cambrian to the Permian and ended with a mass extinction at the end of the Permian. Geologists are still unsure of the cause but the theories include a meteorite impact or a massive volcanic event in Siberia or a combination of both. This could be a possible cause of the melting of the late Paleozoic ice sheets.

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If two point sources of light are being imaged by this telescope, what is the maximum wavelength λ at which the two can be resol

Mrrafil [7]

Answer:

The maximum wavelength is 492 nm.

Explanation:

Given that,

Angular separation $\theta=3.0\times10^{-5}\ rad$

Suppose a telescope with a small circular aperture of diameter 2.0 cm.

We need to calculate the maximum wavelength

Using formula of angular separation

$\sin\theta=\dfrac{1.22\lambda}{d}$

$\lambda=\dfrac{d\sin\theta}{1.22}$

Put the value into the formula

$\lambda=\dfrac{2.0\times\sin(3\times10^{-5})}{1.22}$

For small angle $\sin\theta\approx\theta$

$\lambda=\dfrac{0.02\times3\times10^{-5}}{1.22}$

$\lambda=4.92\times10^{-7}\ m$

$\lambda=492\ nm$

Hence, The maximum wavelength is 492 nm.

5 0

3 years ago

A 0.600 m long pendulum is used to determine the acceleration due to gravity on a distant plane. If 20 oscillations are complete

katrin2010 [14]

Answer:

7.50 m/s^2

Explanation:

The period of a pendulum is given by:

$T=2\pi \sqrt{\frac{L}{g}}$ (1)

where

L = 0.600 m is the length of the pendulum

g = ? is the acceleration due to gravity

In this problem, we can find the period T. In fact, the frequency is equal to the number of oscillations per second, so:

$f=\frac{N}{t}=\frac{20}{35.5 s}=0.563 Hz$

And the period is the reciprocal of the frequency:

$T=\frac{1}{f}=\frac{1}{0.563 Hz}=1.776 s$

And by using this into eq.(1), we can find the value of g:

$g=\frac{4 \pi^2 L}{T^2}=\frac{4 \pi^2 (0.600 m)}{(1.776 s)^2}=7.50 m/s^2$

6 0

3 years ago

You are taking an image of a patient who is in extreme discomfort while participating in the CT scanning process. Which of the f

brilliants [131]

Answer:

Interpersonal skills

Explanation:

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3 years ago

Ocean breezes are due to which method of heat transfer?

Ber [7]

Ocean breezes are due to the convection method of heat transfer

8 0

3 years ago

Read 2 more answers

Distance versus Displacement Worksheet

Umnica [9.8K]

when we find the distance we will add all the blocks so

distance = 6+6+4

distance = 14blocks

when we find the displacement we will add and minus too

As you can read he goes to the south 6 and to north 6 so he leave that place and back to the place again so the displacement is 0. and again he goes to the west 4 blocks so the displacement = 4blocks to the west

6 0

3 years ago

Read 2 more answers