What is the apparent magnitude of the brightest star in the Big Dipper?
Answers
Answer: +1.77
Explanation:
Big dipper is the asterism made of seven bright stars in Ursa Major constellation. An asterism a pattern formed by joining the bright stars in the night sky. On the other hand, whole night sky is divided into 88 areas called constellations. These asterisms are used to identify the constellations.
The brightest star of the big dipper is Alioth which is the 32nd brightest star in the night sky. Its apparent magnitude is +1.77.
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When Jenny writes, the pencil exerts a force of 5n on the paper. The area of the contact is 0.5mm square. Calculate the pressure.
Earth's rotation causes the cycle of ________ a. seasons b. sunrise and sunset c. high and low tide
Answers
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.
b. Shape
c. Brightness
d. Weight
Answers
Correct answer choice is :
C) Brightness
Explanation:
A sheet of white paper seen in the bright sunlight reveals a very different quantity of light than the same sheet of paper seen later that night in a softly illuminated room. Yet we regard the paper as having the same paleness in each case. This is an instance of brightness constancy, our capability to see objects as proceeding to have the same brightness even though light may change their direct visual features.
Answers
Answer:
The depth is 68.4 meters.
Explanation:
In this question the whale rose to the surface of the ocean to breath and then dives into the ocean at an angle of 20° below the horizontal line. It then travels 200 m straight along this line. We have to determine the depth of the ocean.
The path of the whale forms the hypotenuse of a right triangle and the angle between the hypotenuse and base is given as 20°. Determination of sides or angles in a right triangle can be determines using trigonometry.
sinθ =
opposite side = sinθ
Here θ = 20°
sinθ = sin(20°) = 0.342
opposite side=
Hence the depth is 68.4 m.
Answer:
It is 68.404 m deep.
Explanation:
The motion of the whale can be seen in the form of a right-angle triangle.
Angle of deviation = 20°
We know that, sinФ = Perpendicular/ Hypotenuse.
Here, hypotenuse = 200 m
Depth is perpendicular that we have to find.
sin(20°) = Depth/200
Depth = sin(20°) * 200 = 68.404 meters.
Answers
Answer:100 g of ca
Explanation:
Answers
a = change in velocity / change in timea = 0 - (-150) / 30 - 0a = 5 m/s2
Answers
The right answer is 280 N.
What is total weight on the scale?
When a woman stands with two feet on a scale, the scale reads 280 N and when she lifts one foot, the scale also reads 280 N because the weight of the other leg also comes on the one leg.
First, the whole weight of the body depends on two feet but when the second feet is lifted, the weight of the whole body including the lifted feet comes on the single feed so we can conclude that the right answer is 280 N
Learn more about scale here: brainly.com/question/2826496