Earth,like everything else illuminated by the sun,casts a shadow.Why does this shadow taper?

Q: A man’s eyes 2.5 m above sea level can barely see the top of a lighthouse which is at a certain…

A:

Q: The surface temperatures of both Venus and Earth are warmer than would be expected on the basis of…

A: The two planets Venus and Earth are warmer than would be expected since they have atmospheric gases…

Q: What angle would Earth's tilt need to be in order for there to be no seasons on Earth? Group of…

A: If the Earth’s pole would be perpendicular to the Sun, the Sun will always be on the Earth’s horizon…

Q: Does the fact that one side of Moon always faces Earth mean that the Moon rotates about its…

A: One side of the Moon always faces the Earth because the spinning period of the Moon is the same as…

Q: which factor has the greatest influence on the number of daylight hours that a particular earth…

A: which factor has the greatest influence on the number of daylight hours.

Q: How does the spinning of the earth on its axis affect the distribution of energy and moisture?

A:

Q: If I notice that the moon sets at noon on a particular day, what can I conclude about the phase of…

A: The moon sets at noon means the angle between the sight for the moon and sight for the sun (horizon…

Q: Distinguish between an umbra and and a penumbra?

A: An umbra is the central innermost and darkest part of a shadow. It is where the light source is…

Q: Name two sources of each of infrared radiations and ultraviolet radiations.

A: One of the primary sources of infrared radiation is the heat or thermal radiation. IR rays are…

Q: What blocks out sunlight and causes temperatures to drop?

A: Required : What blocks out sunlight and causes temperatures to drop.

Q: Why do we only see one side of the moon?

A: Tidal locking or synchronous rotation is a situation when the rotational period is same as the…

Q: In December does the northern hemisphere tilt towards or away from the sun?

A: Earth's tilt's inclination in space does not shift during the year; hence, in June, the Northern…

Q: For Denton, Texas what is the length of the daylight on the winter solstice?

A: For Denton, Texas , sunrise on winter solstice at 07:28 and sunset at 17:25.

Q: Suppose you are standing such that a 32-foot tree is directly between you and the sun. If you are…

A:

Q: Solar Zenith Angle at Nordlysstasjonen 60 Daylight 80 100 Evening/Nighttime 120 100 200 300 Day of…

A: The Earth progresses through its seasons because its north-south axis has a 23.5-degree tilt. During…

Q: In astronomy, what is meant by "local noon"? in other words, where is the sun at "local noon"?

A: Local noon occurs when the Sun is seen exactly in the south direction.

Q: Do Earth and the Moon always cast shadows? What do we call the occurrence where one passes within…

A: Moon and Earth will always cast shadows. The shadows can be seen during the occurrence of eclipses.

Q: Divide: (9.6×108) (2x10-15) 4.8x107 O 4.8×10-7 -4.8x107 O 4.8x10-7

A:

Q: Give a complete description of these three categories of energy relative to each other in terms of…

A: The electromagnetic spectrum is comprised of different types of electromagnetic radiation, which…

Q: What astronomical event would be seen by observers on the Moon at the time Earth experiences a lunar…

A: The lunar eclipse on Earth will be a solar eclipse on the moon. During the lunar eclipse, the moon…

Q: Why Earth have 365 days per year?

A: We need to give the reason why the earth has 365 days in a year.

Q: Only some of the people on the daytime side of Earth can witness a solar eclipse when it occurs,…

A: Because the shadow cast by the Moon upon Earth is very small (the effect of the penumbra),only some…

Q: If the sun’s radiation was to increase by 10%, Energy emitted by the Earth’s surface would

A: The gases which absorbs and emits radiant energy within the thermal infrared range are greenhouse…

Q: The planetarium is making a scale model of the solar system. If they use a basketball to represent…

A: Let us assume the radius of the basketball is r cm. Now, we know that the average radius of the sun:…

Q: Why does the moon appear in the daytime?

A: The Moon sometimes appears in the daytime as it is the closest object to Earth.

Q: What makes stars shine?

A: The stars are made up of gas of cloud and dust which come together due to gravity. Inside the core…

Q: If you were to send a beam of laser light to a space station above the atmosphere and just above the…

A: It can be aimed that the laser light would be at the visible space station.

Q: Explain phenomenon of Advance sunrise and delayed sunset.

A:

Q: From horizon to zenith, the sky takes up how much angular distance? A. 90 degrees B. 360 degrees C.…

A: Dear student Horizon is the line at which earth surface and sky seems to meet. And zenith is the…

Q: How does the moon affect the tides?

A:

Q: A meter stick, held vertically on a level ground, casts a shadow of 2meters long. Solve for the…

A: In this question we have to find the tangent and the angle. Please give positive feedback if the…

Q: Which of the following is an advantage of radar reconnaissance over photoreconnaissance?     radar…

A: Radar reconnaissance can be used to identify target in day and night, through fog and cloud and…

Q: Why the colour of the sky is blue?

A: When sunlight passes through the atmosphere, the fine particles in the air scatter the blue color…

Q: What is the inner diameter and outer diameter of the object shown in the image ?

A: The measurement device shown in the image is a ruler. In a ruler, the smallest division is 1 mm.

Q: Why don’t we have a solar eclipse and a Lunar eclipse every month?

A: Required : Why don’t we have a solar eclipse and a Lunar eclipse every month?

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.