How do you know if an object has moved? An object is in motion when its distance from another object is changing. Whether an object is moving or not depends on your point of view. An object is in motion if it changes position relative to a reference point. You assume that the reference point […]
What physical properties could you use to identify an ionic compound?
What physical properties could you use to identify an ionic compound? Ionic Compounds Have high melting points. Have high boiling points. Tend to be soluble in water. Conduct electricity in liquid form and in aqueous solution. Are usually hard and brittle solids. Have high enthalpies of fusion. Have high enthalpies if vaporization. How do you […]
How do you calculate VFD current?
How do you calculate VFD current? How to measure output voltage from a VFD to a motor Step 1: Measure dc bus voltage. Measure the dc bus voltage across the + and – terminals using a motor drive analyzer or digital multimeter. Step 2: Measuring voltage and unbalance. Step 3: Measuring current unbalance. Step 4: […]
Which 3 types of waves can be harmful to life?
Which 3 types of waves can be harmful to life? The most dangerous frequencies of electromagnetic energy are X-rays, gamma rays, ultraviolet light and microwaves. X-rays, gamma rays and UV light can damage living tissues, and microwaves can cook them. What type of waves have the highest frequency? Gamma rays have the highest energies, the […]
What does the pattern of magnetic stripes on the seafloor indicate?
What does the pattern of magnetic stripes on the seafloor indicate? A polarity reversal means that the magnetic North flips to where we know the South Pole is. This creates a symmetrical pattern of magnetic stripes of opposite polarity on either side of mid-ocean ridges. These patterns of stripes provide the history of seafloor spreading. […]
What was cathode ray experiment?
What was cathode ray experiment? Thomson’s experiments with cathode ray tubes showed that all atoms contain tiny negatively charged subatomic particles or electrons. Thomson proposed the plum pudding model of the atom, which had negatively-charged electrons embedded within a positively-charged “soup.” How many types of CRT are there? two What is cathode ray tube explain […]
What is wear and its types?
What is wear and its types? Three types of wear are abrasion, adhesion, and corrosion. Each type has inherent problems and benefits that can be affected by materials, lubrication, and surface finish. There are two common types: two-body and three-body abrasion. What is friction tribology? Tribology is the science and application of the principles of […]
What is the largest subfield of psychology?
What is the largest subfield of psychology? Clinical Psychology Clinical psychologists What is the major focus of behavioral psychologists? Behavioral psychology focuses on understanding and modifying individuals’ thoughts, feelings, and behaviors. Behavioral psychologists rely heavily on empirical evidence and theories of human behavior and cognition. Professionals in this area often work as psychologists or counselors. […]
Does entry level mean no degree?
Does entry level mean no degree? “Degree not required” entry-level jobs These are jobs that don’t require a college degree or much (if any) previous experience. Typical jobs in this category include roles in hospitality, retail and certain administrative positions. What do most entry level positions pay? The average entry-level salary The average salary for […]