What is the 6 biggest planet? Saturn What is the name of the coolest star? According to a new study, a star discovered 75 light-years away is no warmer than a freshly brewed cup of coffee. Dubbed CFBDSIR 1458 10b, the star is what’s called a brown dwarf. Which star is least hottest? The seven […]
What is the best F ratio for astrophotography?
What is the best F ratio for astrophotography? Fast f/4 to f/5 focal ratios are generally best for lower power wide field observing and deep space photography. Slow f/11 to f/15 focal ratios are usually better suited to higher power lunar, planetary, and binary star observing and high power photography. Medium f/6 to f/10 focal […]
Do waves require medium?
Do waves require medium? Sound and water waves are mechanical waves; meaning, they require a medium to travel through. The medium may be a solid, a liquid, or a gas, and the speed of the wave depends on the material properties of the medium through which it is traveling. Why does electromagnetic wave does not […]
Which component of magma is the highest and the lowest in value?
Which component of magma is the highest and the lowest in value? Felsic magma has the highest silica content of all magma types, between 65-70%. As a result, felsic magma also has the highest gas content and viscosity, and lowest mean temperatures, between 650o and 800o Celsius (1202o and 1472o Fahrenheit). Could a mountain turn […]
What are the two types of reflection class 8?
What are the two types of reflection class 8? 4.1 Regular Reflection. 4.2 Diffuse reflection or irregular reflection. What is the best reflective model? Gibbs’ Reflective Cycle. One of the most famous cyclical models of reflection leading you through six stages exploring an experience: description, feelings, evaluation, analysis, conclusion and action plan. What are the […]
Why is Aluminium good for aircraft?
Why is Aluminium good for aircraft? Aluminum is ideal for aircraft manufacture because it’s lightweight and strong. Aluminum is roughly a third the weight of steel, allowing an aircraft to carry more weight and or become more fuel efficient. Furthermore, aluminum’s high resistance to corrosion ensures the safety of the aircraft and its passengers. Why […]
What is the rejection region for the hypothesis test?
What is the rejection region for the hypothesis test? The rejection region is the interval, measured in the sampling distribution of the statistic under study, that leads to rejection of the null hypothesis H 0 in a hypothesis test. What is a critical value in statistics? A critical value is a line on a graph […]
Does radiation travel at the speed of light?
Does radiation travel at the speed of light? Electromagnetic radiation is a type of energy that is commonly known as light. Generally speaking, we say that light travels in waves, and all electromagnetic radiation travels at the same speed which is about 3.0 * 108 meters per second through a vacuum. How long would it […]
How does a motor operate?
How does a motor operate? Electric motors work by converting electrical energy to mechanical energy in order to create motion. Force is generated within the motor through the interaction between a magnetic field and winding alternating (AC) or direct (DC) current. How do I select a motor for an application? 5 steps to choose the […]
Which is the most efficient cycle?
Which is the most efficient cycle? Carnot Cycle Which engine is most efficient? Wärtsilä 31SG At what RPM is an engine most efficient? In general, the economical band for petrol vehicles is between 1,500 and 2,500 rpm (for diesels it is between 1,300 rpm and 2,000 rpm), and these bands are the same for the […]