What do forensic scientists do on a day to day basis? Take photographs of the crime scene and evidence. Make sketches of the crime scene. Keep written notes of their observations and findings, such as the location and position of evidence as it is found. Collect all relevant physical evidence, including weapons, fingerprints, and bodily […]
Can humans grow tails?
What is relative velocity formula?
What is relative velocity formula? The relative velocity is the velocity that the body A would appear to an observer on the body B and vice versa. Mathematically speaking the relative velocity is the vector difference between the velocities of two bodies. Relative velocity = velocity of the body A – velocity of the body […]
What are the four basic principles of germ theory?
What are the four basic principles of germ theory? The four basic principles of Germ Theory The air contains living microorganisms. Microbes can be killed by heating them. Microbes in the air cause decay. Microbes are not evenly distributed in the air. What is Pasteur’s germ theory? In 1861, Pasteur published his germ theory which […]
Why is the pulley less than 100% efficient?
Why is the pulley less than 100% efficient? It is important to remember that NO pulley system is 100% efficient. This is due to friction of the ropes against the pulley wheels and the friction of the bearings of the pulley wheels as they rotate. This type of pulley arrangement will always have the same […]
What does it mean when correlation is significant at the 0.01 level?
What does it mean when correlation is significant at the 0.01 level? Saying that p<0.01 therefore means that the confidence is >99%, so the 99% interval will (just) not include the tested value. They do not (necessarily) mean it is highly important. The significance level, also denoted as alpha or α, is the probability of […]
Why does my child struggle with transitions?
Why does my child struggle with transitions? Sensory processing challenges Although sensory processing is not a diagnostic term like ADHD or autism, kids with either disorder-or no disorder-can have sensory processing issues, which can lead to problems with transitions. For kids who are easily over stimulated, the world feels confusing and seems to move too […]
What are 3 ways sediment can move to a new location?
What are 3 ways sediment can move to a new location? Sediment moves from one place to another through the process of erosion. Erosion is the removal and transportation of rock or soil. Erosion can move sediment through water, ice, or wind. Water can wash sediment, such as gravel or pebbles, down from a creek, […]
Why do iron filings become magnetized or collected together?
Why do iron filings become magnetized or collected together? Since iron is a ferromagnetic material, a magnetic field induces each particle to become a tiny bar magnet. The south pole of each particle then attracts the north poles of its neighbors, and this process is repeated over a wide area creates chains of filings parallel […]
Which gas is the main cause of greenhouse effect?
Which gas is the main cause of greenhouse effect? Carbon Dioxide Why oxygen is not a greenhouse gas? Oxygen and nitrogen are not greenhouse gases, because they are transparent to infrared light. These molecules are invisible because when you stretch one, it doesn’t change the electric field. These are symmetric molecules, made of two identical […]