What is the importance of formulating a hypothesis? A hypothesis enables researchers not only to discover a relationship between variables, but also to predict a relationship based on theoretical guidelines and/or empirical evidence. Developing a hypothesis requires a comprehensive understanding of the research topic and an exhaustive review of previous literature. What is a broader […]
What is the net force of a rock falling at constant terminal velocity?
What is the net force of a rock falling at constant terminal velocity? Objects falling through a fluid eventually reach terminal velocity . At terminal velocity, the object moves at a steady speed in a constant direction because the resultant force acting on it is zero. Why does a parachutist does not fall with constant […]
What is the minimum size power conductors that are permitted to be run in parallel?
What is the minimum size power conductors that are permitted to be run in parallel? Parallel conductor installations are covered in NEC 310.10(H) and are permitted for each phase, polarity, neutral, or grounded conductor in sizes 1/0 AWG and larger. Joining conductors in parallel is like having two or more smaller conductors connected at each […]
How much heat can a resistor take?
Why do we see sun before sunrise?
Why do we see sun before sunrise? The rising sun is visible to us before actual sun rise and after actual sunset because of the atmospheric refraction of light. The rays from the sun coming through space enter from rarer to the denser medium and hence bend slightly towards normal at each refraction and become […]
Is ultrasound tech school hard?
Is ultrasound tech school hard? Difficult but Worth the Effort It takes two years to complete, but the degree from a CAAHEP accredited program qualifies the sonography student to take the ARDMS exams. It is necessary to take required courses like physiology, anatomy, physics, sonography instrumentation and medical terminology. Which is the best ultrasound machine? […]
Is distance a scalar or vector?
Is distance a scalar or vector? Distance is a scalar quantity that refers to “how much ground an object has covered” during its motion. Displacement is a vector quantity that refers to “how far out of place an object is”; it is the object’s overall change in position. Why distance is called a scalar quantity? […]
What do u mean by uniform circular motion?
What do u mean by uniform circular motion? Uniform circular motion can be described as the motion of an object in a circle at a constant speed. As an object moves in a circle, it is constantly changing its direction. At all instances, the object is moving tangent to the circle. Nonetheless, it is accelerating […]
What is rate of change in a graph?
What are mixtures that Cannot be separated?
What are mixtures that Cannot be separated? An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. There are about 117 elements. Which type of matter Cannot be broken down any smaller? a pure or elementary substance cannot be broken down into smaller or simpler constituents without […]