Which stars are the youngest? If proven, the newly discovered neutron star will be the youngest one known by humanity, beating the current youngest supernova remnant is Cassiopeia A, which is 330 years old that can be found 11,000 light-years away from Earth and can be found within our galaxy. Why doesn’t the helium core […]
Is oil a good energy source?
Is oil a good energy source? Oil is particularly useful as a fuel because of its high energy density. As previously mentioned, the original energy source of oil is the Sun, as the energy stored within dead organic matter is what creates crude oil over time. Why is oil a bad energy source? Burning Fossil […]
Does buoyancy affect weight?
How is wind speed indicated what is the unit used to define wind speed?
How is wind speed indicated what is the unit used to define wind speed? How is Wind Speed and Direction measured? Wind speed is typically reported in miles per hour, knots, or meters per second. One mile per hour is equal to 0.45 meters per second, and 0.87 knots. Wind direction is typically reported in […]
Why is the atmosphere essential for life?
Why is the atmosphere essential for life? Atmosphere is very important for sustaining life: It contains various gases like O2, CO2, N2 which are required for various life processes by plants and animals. (ii) gas is used by plants to prepare food by the process called photosynthesis (iii) Oxygen is required for burning, combustion and […]
What is a magnetic field how can the direction?
What can bloodstain patterns tell an investigator?
What can bloodstain patterns tell an investigator? Bloodstain pattern analysis (BPA) is the interpretation of bloodstains at a crime scene in order to recreate the actions that caused the bloodshed. Analysts examine the size, shape, distribution and location of the bloodstains to form opinions about what did or did not happen. What type of evidence […]
How accurate are dial calipers?
How accurate are dial calipers? Quality dial, Vernier or digital calipers can all return an accuracy of about 0.001 inch over 6 inches if correctly used, although the accuracy is likely to diminish over longer spans. What are the 3 ways a dial caliper can be used to measure? There are 4 measurements you can […]
How does a Punnett squares allow you to predict gametes and offspring?
How does a Punnett squares allow you to predict gametes and offspring? A Punnett square is a chart that allows you to easily determine the expected percentage of different genotypes in the offspring of two parents. The gametes produced by the male parent are at the top of the chart, and the gametes produced by […]