What is the KT boundary made of? At Beloc and other localities in Haiti, the K-T boundary is marked by a normal but thick (30 cm) clay boundary layer that consists mainly of glass spherules (Figure 18.2). The clay is overlain by a layer of turbidite, submarine landslide material that contains large rock fragments. Why […]
How many xrays are too many in a year?
How many xrays are too many in a year? While there’s no magic number of how many X-rays are safe in each year, the American College of Radiology recommends limiting lifetime diagnostic radiation exposure to 100 mSv, which is the equivalent to about 10,000 chest X-rays, but only 25 chest CT scans. Is XRAY safe […]
Why is steam turbine efficiency so low?
Why is steam turbine efficiency so low? Consequently, the resultant high cooling tower inlet temperature translates to a high condensation temperature in the Rankine cycle and hence a reduction in the steam turbine efficiency. What is the efficiency of steam power plant? Efficiency. The efficiency of a conventional steam-electric power plant, defined as energy produced […]
What is the input and output of work?
Why does cold air sink and hot air rise?
Where is Pearl River or Chu Kiang?
Where is Pearl River or Chu Kiang? southern China Why is the Pearl River important? As the pioneer of reform and opening-up and an important economic hub of China, the Pearl River Delta has played a remarkable leading role and had an important strategic status in the overall effort of China to pursue economic and […]
How many golf balls can fit in the earth?
How do you tell if a sample mean is normally distributed?
How do you tell if a sample mean is normally distributed? If the population is normal to begin with then the sample mean also has a normal distribution, regardless of the sample size. For samples of any size drawn from a normally distributed population, the sample mean is normally distributed, with mean μX=μ and standard […]
What materials can be used to make a lamp?
What materials can be used to make a lamp? Materials Used in Lamp Bulb Various types of material are used to build a lamp. Insulating materials, conducting materials are the essential parts of a lamp set up. The details of those materials are given below. Glass. Ceramics. Conventional Ceramics. Conventional ceramics are of two types, […]
What are intrusive rocks used for?
What are intrusive rocks used for? Igneous rocks have a wide variety of uses. One important use is as stone for buildings and statues. Diorite was used extensively by ancient civilizations for vases and other decorative artwork and is still used for art today (Figure 1). Granite (figure 2) is used both in building construction […]