How do you test for nitrogen in fertilizer? To perform the test, simply mix some of your fertilizer with water to dissolve the nitrates and then mix it with hydrochloric acid. Then add in some copper metal. The reaction is very slow to start up unless you heat it. Why is it important to carry […]
What is tolerance in a resistor?
What is tolerance in a resistor? The tolerance of a resistor is the maximum difference between its actual value and the required value and is generally expressed as a plus or minus percentage value. For example, a 1kΩ ±20% tolerance resistor may have a maximum and minimum resistive value of: Maximum Resistance Value. What are […]
Which describes the role of carbon dioxide?
Which describes the role of carbon dioxide? Carbon dioxide is an atmospheric constituent that plays several vital roles in the environment. It is a greenhouse gas that traps infrared radiation heat in the atmosphere. It plays a crucial role in the weathering of rocks. It is the carbon source for plants. What is the importance […]
Why is physical activity important for a child?
Why is physical activity important for a child? Regular physical activity can help children and adolescents improve cardiorespiratory fitness, build strong bones and muscles, control weight, reduce symptoms of anxiety and depression, and reduce the risk of developing health conditions such as: Heart disease. Why is it important to participate in physical fitness assessment activities? […]
What will be the resistance of 100w 210v lump?
Can two electric field lines intersect each other?
Can two electric field lines intersect each other? Electric lines of force never intersect because, at the point of intersection, two tangents can be drawn to the two lines of force. This means two directions of the electric field at the point of intersection, which is not possible. Why can’t two field lines intersect each […]
Which is not a power function?
Which is not a power function? This is called an exponential function, not a power function. What is a power in math? A power is the product of multiplying a number by itself. Usually, a power is represented with a base number and an exponent. The base number tells what number is being multiplied. How […]
What is the difference between non science and pseudoscience?
What is the difference between non science and pseudoscience? In short, while not all non-science is pseudoscience, all pseudoscience is definitely non-science. While pseudoscience is the most dangerous subspecies of non-science, philosophical discussions of the problem of demarcation aim to extract those features that make science what it is. Does science have to be falsifiable? […]
What is dynamic warm up and why use it?
What is dynamic warm up and why use it? In simple terms, a dynamic warm-up is “moving while you stretch” or stretching through a joint’s full range of motion and preparing muscles for more intense exercise to come. A dynamic warm-up promotes blood flow, helps PREVENT INJURY and muscle soreness, as well as helps improve […]
What are the 4 elements of science fiction?
What are the 4 elements of science fiction? Science fiction contains the usual elements of the novel: a specific setting, character development, plot (central conflict, complications, climactic events, resolution), themes, and structure. How can you tell if a story is science fiction? Science fiction is a genre of fiction in which the stories often tell […]