Scientists believe Earth is about how many billion years old

Answers

Answer 1
Answer: The earth is 4.54 billion years old.

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What did William Penn think would attract new settlers to his colony in Pennsylvania?

Answers

The biggest thing that would attract them to Pennsylvania would be freedom for religious practices. He was a quaker, which is a type of a Christian, but wasn't very liked by Dutch and German and other types of Christians because he wasn't catholic or protestant. So he made a new colony where people would have religious freedom.

Where does sugar enter the blood?

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After we eat, blood sugar concentratons rise, the pancreas releases insulin automatically so that the glucose enters cells, as more and more cells receive glucose, blood sugar levels come down to normal again. Exces glucose is stored as glycogen in the liver and muscles.Hope this helps.

a body that has a mass of 0.04 k g is thrown up with a speed of 60m/s. Kinetic energy? a) in the begining,b)after 6 seconds​

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Answer:

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Your vessel's position should be plotted using bearings of____.

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Your vessel's position should be plotted using bearings of fixed known objects on shore.

A ball is thrown directly downward with an initial speed of 8.00 m/s, from a height of 30.0 m. After what time interval does it strike the ground?

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We can use the equation of motion:
s = ut + 1/2 x at²
Both the velocity and acceleration are downwards so we'll consider the downward direction positive
30 = 8t + 4.91t²
4.91t² + 8t - 30 = 0
Solving the quadratic:
t = 1.79 s; t = -3.42 s
Negative time is not possible so second value discarded. Time taken = 1.79 seconds

Number 33 apparently the answer is 4 but I have no idea why

Answers

It would help if you managed to capture the whole question and all the answer choices
in the picture. Fortunately, you caught the whole question in the picture of #32.

Tools you need in order to answer this one:
-- When the frequency of a wave goes up, the wavelength gets shorter. 
(That's why the high numbers on a radio receiver are called 'short-wave'.)
-- Photons with higher frequency carry more energy.
(That's why x-rays and gamma rays are dangerous to our delicate human tissues.)

Do you remember hearing these things in class ?

Anyway, as the frequency of the photons increases,  their
energy increases, and their wavelengths get shorter.

I hope that's one of the choices that escaped getting caught in the photo.