Is the human body a heat engine?

Is the human body a heat engine? The body is a heat engine. It converts chemical energy of the food consumed into both heat to sustain metabolism and work. The harder the body exercises or works, the greater the need to reject heat in order for the body to maintain thermal balance. Is a car […]

Which are the 7 major classes of psychoactive drugs?

Which are the 7 major classes of psychoactive drugs? 7 Drug Categories (1) Central Nervous System (CNS) Depressants. CNS depressants slow down the operations of the brain and the body. (2) CNS Stimulants. (3) Hallucinogens. (4) Dissociative Anesthetics. (5) Narcotic Analgesics. (6) Inhalants. (7) Cannabis. What are the 3 categories of psychoactive drugs? The main […]

What properties do all electromagnetic waves have in common?

What properties do all electromagnetic waves have in common? Electromagnetic waves are members of a family of waves with common properties called the electromagnetic spectrum….Common properties are transverse waves; can travel through a vacuum ; travel at exactly the same speed in a vacuum, the speed of light, 300,000,000 m/s. What are the properties of […]

What are the five types of knowledge?

What are the five types of knowledge? 13 Types Of Knowledge based on the Source of Knowledge 1) Posteriori knowledge : 2) Priori knowledge : 3) Dispersed knowledge : 4) Domain knowledge : 5) Empirical knowledge : 6) Encoded knowledge : 7) Explicit knowledge : 8) Known unknowns : What are the major types of […]

Is metallic physical or chemical property?

Is metallic physical or chemical property? Physical Properties of Metals State: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature (Gallium is liquid on hot days). Luster: Metals have the quality of reflecting light from their surface and can be polished e.g., gold, silver and copper. Is […]

How can you tell if Rice is spoiled?

How can you tell if Rice is spoiled? Dry white rice has a shelf life of up to 2 years, while brown rice keeps up to 6 months. Signs of expired rice include holes in the packaging, bugs, water, and mold. Brown rice may become rancid, oily, or discolored. How long does raw rice last? […]

Why is a person sweating an example of homeostasis?

Why is a person sweating an example of homeostasis? Sweating is an example of homeostasis because it helps maintain a set point temperature. What factors can disrupt homeostasis in the body? Genetic, lifestyle or environmental factors can cause an imbalance of homeostasis. If homeostasis is disrupted, it must be controlled or a disease/disorder may result. […]

Who really found America?

Who really found America? Columbus Is Canada older than America? But it won’t be Canada’s birthday. Just as Europeans had known about a place called “America” peopled by “Americans” long before the U.S. Declaration of Independence in 1776, they’d also known about “Canada” and “Canadians” for centuries ahead of Confederation in 1867. When the Vikings […]

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