*B. sunspots. C. the chromosphere. D. solar wind. 6. The four terrestrial planets that have solid, rocky surfaces are A. Mercury, Jupiter, Saturn, and Mars.B.
1 AU b. 149,600,000 km c. 8.3 light-minutes d. all of the above 5. Distances between stars are usually measured in a. light-minutes b. astronomical units c. light-days d. light-years 6. Einstein developed an equation that changed ideas about the sun’s energy source by describing the relationship between a. mass and energy b. gravity
The solar system C. Our own Milky Way galaxy D. A planetary nebula Feedback Correct Marks for this submission: 5.00/5.00. Question 4 Correct Mark 5.00 out of 5.00 Flag question Question text Astronomers can use telescopes on the ground to observe electromagnetic radiation of some wavelengths, but other wavelengths are
ATM uses fixed size packets (53 bytes) for data communication; frame relay uses variable packet sizes depending on the type of information to be sent. Both information blocks have a header in addition to data block and transfer is connection oriented. Frame Relay is used to connect Local Area Networks (LAN) and it is not implemented within a single area network contrast to ATM where data transfers are within a single LAN. ATM is designed to be convenient for hardware implementation and therefore, cost is higher compared to frame relay, which is software controlled. Therefore frame relay is less expensive and upgrading is easier.
Sometimes in binary systems, mass flows into a hot accretion disk around the neutron star and causes the emission of x rays. 14. Astronomers have found compacted objects
Each satellite has atomic clocks, that transmit two radio signals, L1 (1575.42 MHz) and L2 (1227.60 MHz). Modulated onto these signals are two codes: the C/A code (Course/Acquisition) and the P-Code (Precise). 2. A Monitoring Component: four Ground-Based Monitor Stations. One is the master control station, which calculates satellite paths and clock correction coefficients.
This is because there is a relation between the energy of light and its frequency: the greater the energy the higher the frequency. As light travel upwards in the earth´s gravitational fields, it loses energy, and so its frequency goes down. To someone high up, it would appear that everything down below was taking longer to happen. A prediction tested, showed that the clock at the bottom, which was nearer the earth, was found to run slower, in exact agreement with general relativity. The difference in the speed of clocks at different heights is now of considerable practical importance’s, with the advent of very accurate navigation systems bases on signals from satellites (GPS).
Meteorites likely traveled in space for millions of years before visiting us here on Earth. They were bathed in cosmic rays, but are not dangerous or radioactive. If your rock looks just like other Earth rocks, it probably is one. Meteorites look and feel different from the ordinary rocks around them. Recently fallen
Introduction: The question of maintenance of Nutrition in Space was of minimal concern when the space flights were of less duration but as the space flights began to start for longer period it became a matter of great concern. Human body reacts in a different way in space and zero gravity, there are a number of changes that occur in the human body when environment is changed. Some of the common prominent changes are; increase in the carbon dioxide content from 0.1 % to 1% and at times even more than that. Excessive radiation exposure because of no atmospheric layer for protection and disruption of normal biological clock due to changes in light and dark cycle. There are a number of other psychological factors that affect the food desire
Read on to see examples of how calculus is used in astronomy. An Essential Element Calculus is the mathematical language that describes change. One of the most common uses of calculus is to find the rate at which the position of a moving body changes with time. The laws of planetary motion that are commonly used by astronomers to calculate orbits are derived using calculus. An astronomer who wants to send a rocket into space uses calculus to work out how much fuel the rocket needs to accelerate to the correct velocity.