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How do you know which direction is north at night?
Do I have to memorize kinematic equations for MCAT?
Do I have to memorize kinematic equations for MCAT? Kinematic equations are the foundation to mastering MCAT physics. Yes you have to ‘memorize’ and know the standard formulas, but it goes deeper than that. You have to understand the units, when to use which equation, and be VERY comfortable applying these concepts to the more […]
What type of energy does burning food release?
What type of energy does burning food release? This food is oxidized (or “burned”) inside our bodies during digestion. As this happens, chemical energy stored in the food is converted to heat energy (to maintain our constant body temperature), mechanical energy (to move our muscles), and electrical energy (for nerve transmission). What form of energy […]
What are the 4 common concepts in nursing theory?
What are the 4 common concepts in nursing theory? According to the four concepts common in nursing theory; the person (patient), the environment, health & nursing (goals, roles, functions) can be analyzed. Each of these concepts is usually defined and described by a nursing theorist. Of the four concepts, the most important is that of […]
What do negative values for net torque mean?
What do negative values for net torque mean? Oh, torque can be positive or negative. Let us say that a positive torque would make a stationary object rotate counter clockwise and a negative torque would make it rotate clockwise. Is a clockwise moment positive or negative? The direction of a moment is opposite to the […]
Did Einstein say we Cannot solve our problems with the same thinking we used to create them?
What gas is important to photosynthesis?
What gas is important to photosynthesis? carbon dioxide What are the raw materials and end products of photosynthesis? The raw materials of photosynthesis, water and carbon dioxide, enter the cells of the leaf, and the products of photosynthesis, sugar and oxygen, leave the leaf. What are three end products of photosynthesis? Glucose and oxygen are […]
What is the speed and direction of an object?
What is the speed and direction of an object? Speed in a given direction is called velocity. What can you deduce if your distance is negative? Technically no. Negatives are usually associated with displacement, where one direction is considered positive and the opposite is considered negative. Distance is just how far you have travelled. Does […]
Does your weight change in an elevator?
Does your weight change in an elevator? When the elevator is moving, we will weigh our normal weight. Since we are already moving at the same speed as the elevator (up or down), nothing is affecting us to change our weight. However, when the elevator starts to go or stops, our body resists it. The […]