What is the relationship between a neutron star and a pulsar? Most neutron stars are observed as pulsars. Pulsars are rotating neutron stars observed to have pulses of radiation at very regular intervals that typically range from milliseconds to seconds. Pulsars have very strong magnetic fields which funnel jets of particles out along the two […]
What are the 2 types of metamorphism?
What are the 2 types of metamorphism? There are two main types of metamorphism: Contact metamorphism—occurs when magma contacts a rock, changing it by extreme heat (Figure 4.14). Regional metamorphism—occurs when great masses of rock change over a wide area due to pressure exerted on rocks at plate boundaries. What are the two main types […]
How long of a walk is a 1 minute drive?
Why do people who participate in marathons tend to have smaller muscles?
Why do people who participate in marathons tend to have smaller muscles? Why do people who participate in marathons tend to have smaller muscles? Muscle endurance is more important for them than muscle strength. How does gender affect cardiac output? Resting and exercise stroke volumes (ml/beat) were lower in women than in men but did […]
What are the main stresses developed in a pressure vessel?
What are the main stresses developed in a pressure vessel? Primary and Secondary Stresses The pressure vessel codes define two important ‘classes’ of stress. A primary stress is related to mechanical loading directly and satisfies force and moment equilibrium. Primary stress that exceeds the yield stress by some margin will result in failure. What is […]
What is a clarifying question?
What is a clarifying question? Clarifying Questions are simple questions of fact. They clarify the dilemma and provide the nuts and bolts so that the participants can ask good probing questions and provide useful feedback. What is probing question in teaching? Probing Questions. Series of questions which require students to go beyond the first response. […]
Is enthalpy of atomisation always negative?
Is enthalpy of atomisation always negative? Enthalpy of atomization is the amount of enthalpy change when a compound’s bonds are broken and the component elements are reduced to individual atoms. Enthalpy of atomization is always a positive value and never a negative number. Enthalpy of atomization is denoted by the symbol ΔHa. What does negative […]
Is copper a good conductor?
Is copper a good conductor? Copper is a metal made up of copper atoms closely packed together. The electrons can move freely through the metal. For this reason, they are known as free electrons. They are also known as conduction electrons, because they help copper to be a good conductor of heat and electricity. What […]