Why is electrodynamics important? Electromagnetism is a branch of physical science that involves all the phenomena in which electricity and magnetism interact. This field is especially important to electronics because a magnetic field is created by an electric current. What are the functions of electromagnets? An electromagnet is a device that sends electricity through a […]
What does the velocity time graph gives?
What does the velocity time graph gives? The area under a speed-time graph represents the distance travelled. This is a velocity time graph of an object moving in a straight line due North. The displacement of this object is the area of the velocity time graph. To calculate the displacement we need to calculate the […]
Can mass actually be destroyed?
Can mass actually be destroyed? The law implies that mass can neither be created nor destroyed, although it may be rearranged in space, or the entities associated with it may be changed in form. Mass is also not generally conserved in open systems. Such is the case when various forms of energy and matter are […]
How far do you have to be from a nuclear bomb to survive?
How do you handle blood evidence?
How do you handle blood evidence? Liquid blood evidence is generally collected from blood pools but can be collected off of clothing as well, using a gauze pad or a sterile cotton cloth. Once the sample is collected it must be refrigerated or frozen and brought to the laboratory as quickly as possible. How do […]
What are the six components of skill related fitness?
What are the six components of skill related fitness? There are six skill-related fitness components: agility, balance, coordination, speed, power, and reaction time. Skilled athletes typically excel in all six areas. What are the benefits of skill related fitness? Strength and flexibility are important in reducing risks of osteoporosis and improving functional capacity. Skill-related fitness […]
What type of reaction is the reaction of magnesium with oxygen?
What type of reaction is the reaction of magnesium with oxygen? Oxygen and magnesium combine in a chemical reaction to form this compound. After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction. What happens […]
How fast does water carry heat away from the body?
What is a specific and nonspecific immune response?
What is a specific and nonspecific immune response? Nonspecific protective mechanisms repel all microorganisms equally, while the specific immune responses are tailored to particular types of invaders. These immune mechanisms also help eliminate abnormal cells of the body that can develop into cancer. What are the two different specific immune responses? There are two types […]
Why are most plants green in color?
Why are most plants green in color? The longer answer lies in the details of photosynthesis, the electromagnetic spectrum, energy and “special pairs” of chlorophyll molecules in each plant cell. As such, plants look green because they absorb red light most efficiently and the green light is reflected. Who named Chlorophyll is a green Coloured […]