Category: Physics

Does rising air warm or cool? Rising air always cools, and, conversely, sinking air always warms. This type of temperature change, which is caused simply by ascent or descent in the atmosphere, is called adiabatic cooling or warming. When air moves vertically, its pressure changes. What causes the air mass to cool what happens to […]

Is gold monatomic or diatomic? Some sources cite the different color of the gold from its usual yellow color as evidence of it being monatomic. Any chemist (or alchemist, for that matter) knows gold is a transition metal that forms colored complexes and also assumes different colors as a pure metal as a thin film. […]

Is it OK to be rude? When a person is being rude or hurtful to you or someone else. And lastly, if someone is being incredibly rude or hurtful it is always okay to be rude in response. This includes any words or behavior that are in anyway racist, misogynistic, or anything that is similarly […]

What are three unique characteristics of lasers? Properties of laser light are: monochromacity (the same color), coherence (all of the light waves are in phase both spatially and temporally), collimation (all rays are parallel to each other and do not diverge significantly even over long distances). What are 3 types of lasers? Types of lasers […]

What happens when the moon and sun are at right angles from each other? Neap tides, which also occur twice a month, happen when the sun and moon are at right angles to each other. In both cases, the gravitational pull of the sun is “added” to the gravitational pull of the moon on Earth, […]

How many appliances can be on a 20 amp circuit? A 20 Amp breaker can handle up to 2,400 Watts. Many of the breakers you see in the panel run entire rooms. This includes things like standard outlets and built-in lighting systems. Though there are some breakers that are set up to handle one single […]

What do you say when evaluating a presentation? Criteria for Evaluating Presentations Focus of the presentation. Clarity and coherence of the content. Thoroughness of the ideas presented and the analysis. Clarity of the presentation. Effective use of facts, statistics and details. Lack of grammatical and spelling errors. Design of the slides. Effective use of images. […]

Do you need a resistor with a 12 volt coil? If a 6 volt ignition system is converted to 12 volts and a Delco style 12 volt coil with an internal resistor is installed as part of the conversion, no external resistors are required. The 12 volt battery must be connected so the negative (-) […]

What is the rarest type of eclipse? Just 9 hours later, the Moon will pass perfectly between the Earth and the Sun, creating an annular solar eclipse for a myriad of observers across Africa and Asia. It’s an incredibly rare occurrence to have a solstice solar eclipse, but there’s a good reason for it this […]

Can you live with 45 chromosomes? Turner syndrome is due to a chromosomal abnormality in which all or part of one of the X chromosomes is missing or altered. While most people have 46 chromosomes, people with TS usually have 45. The chromosomal abnormality may be present in just some cells in which case it […]