Social Sciences

When you get shocked from a metal doorknob, you are experiencing static electricity. This occurs when an imbalance of electric charges builds up on the doorknob and your body, and discharges when you touch the doorknob.

Racemic mixture of tartaric acid consists of equal amounts of its D- and L-enantiomers, resulting in a 1:1 ratio. This forms a structure that lacks optical activity because the optical rotations of the enantiomers cancel each other out.

If Bt corn affects non-target organisms like beneficial or harmless insects, it could lead to a disruption in the ecosystem balance. This can result in a decrease in biodiversity, loss of important insect populations, and potential cascading effects on other organisms dependent on these insects for food or other ecosystem services. It's important to carefully consider and monitor the impact of Bt corn on non-target organisms to prevent unintended consequences.

A model is a simplification of reality in some specific field to uncover causal relations that may or may not be present. It is usually used to study one specific factor and its influence on other factors. However, due to the inherent complexity of the real world oftentimes many simplifying (and usually unrealistic) assumptions need to be made to construct the model, hence interpreting the results correctly is crucial.

Most polyatomic ions have a negative charge. There are only 2 positive polyatomic ions; Mercury(I) ion and Ammonium ion.

False.

Ozone is made of three oxygen atoms bound together and which is written by chemists as O3. The ozone molecule can be represented as three balls and two sticks holding the three balls in place. The balls represent the oxygen atoms, and the sticks represent the chemical bonds that hold the oxygen together. The bonding is roughly this O-O=O, but the atoms are not inline. The molecule is slightly polar because of the triply bonded central oxygen atom and the bent shape. The molecule swaps which atom has the double bond periodically. It is unstable, it decays in time even at liquid ozone temperatures.

Some have outer membrane, some don't.

Gram positive bacteria - no outer membrane

Gram negative bacteria - with outer membrane

Carbohydrates are the human body's key source of energy, providing 4 calories of energy per gram. When carbohydrates are broken down by the body, the sugar glucose is produced; glucose is critical to help maintain tissue protein, metabolize fat, and fuel the central nervous system.

when the ice cube is taken out of the freezer the warm air or the climate change will have the effect to make it melt because when the ice cube freezes its in a very cold climate at about 32 degrees or cooler and when warm air hits what ever was cold it heats up and it melts it back to its regular form.

Conversion on of gas into solid is called desublimation.

1. Temperature: Higher temperatures often increase the rate of solute dissolution.
2. Surface area: Smaller particle size or increased surface area of the solute can speed up dissolution.
3. Agitation: Stirring or shaking the solution can help to distribute the solute particles, leading to faster dissolution.

Producers, like plants, get their energy from sunlight through the process of photosynthesis. They convert this solar energy into chemical energy in the form of glucose, which can be used to fuel their growth and reproduction. This process forms the basis of the food chain, as it provides energy for consumers higher up in the food chain.

Molars are wide and flat to provide a larger surface area for grinding and chewing food. The shape of molars helps in breaking down food into smaller particles, making it easier for digestion. Additionally, the flat surface of molars also helps distribute the force of chewing evenly across the tooth, preventing damage or fractures.

Speed is typically calculated by dividing the distance traveled by the time it took to travel that distance. The formula for speed is Speed = Distance/Time. It is usually measured in units such as meters per second (m/s) or kilometers per hour (km/h).

A color shaded relief map is a type of map that combines elevation data with shading to create a three-dimensional-like representation of the Earth's surface. Different colors are used to indicate changes in elevation, while shading is added to show the direction of light and create a sense of depth and topography on the map. This type of map is often used in geography, cartography, and environmental studies to visualize terrain features and landforms.

The symbol for moment of a force is "M." It is also sometimes represented as "τ" (tau).

Global warming has no effect on earth's mantle or core, but there IS a measurable effect on earth's atmosphere and surface. We have witnessed the recession of glaciers, and concordant rise in sea levels. So far this rise has been very small, but it is expected to increase substantially within the next few centuries.

Eco-Drive watches are the current generation of watches made by Citizen. The face of the watch is a solar collector that charges a lithium battery. Note that it isn't charged only by sunlight, but any light, including florescent, will charge the watch.

Citizen no longer makes their quartz watches and now only makes the Eco-Drive watches. They carry a 5 year warrenty, and range from around $175-$1000 dependant on model and features.

Gravitational force (weight), pointing down.

Reaction force, equal to the gravitational force (weight), exerted by the tabletop, pointing up.

Eric's love for playing soccer is most likely a result of his environment rather than heredity. While he may have some inherited genetic predispositions towards physical activity, his exposure to soccer as a sport and the encouragement he receives from his family and peers are important factors shaping this interest.

Countries with hot wet climates include Brazil, Indonesia, Malaysia, Thailand, and parts of Africa, such as the Congo and the Amazon rainforest. These regions typically experience high temperatures and high levels of humidity, with frequent rainfall throughout the year.

Type A neurons are a classification of neurons based on their conduction velocity and function. They are typically fast-conducting neurons responsible for transmitting signals quickly over long distances in the body. Type A neurons are further subdivided into categories based on the diameter of their axons and the presence or absence of myelin sheaths.

Dendrites are the neuron part that pick up signals from other neurons. They are branch-like structures that extend from the cell body and receive incoming signals in the form of neurotransmitters released by neighboring neurons. These signals are then integrated in the cell body and transmitted along the neuron for further processing.

Solid, liquid, gas. (Ice, water and steam)

Fossilized poop is called coprolite. It is formed when feces undergoes a process of mineralization and becomes preserved in rock. Coprolites can provide valuable insights into the diet and digestive processes of ancient animals.