What happens when a wave reflects off a fixed boundary? The right end is held tightly; it is a fixed end. The wave reflects off this fixed end and returns as a downward displaced pulse. Reflection off a fixed end results in inversion. At what angle does a reflected waves bounce back? In a reflection, […]
What color is the photosphere as viewed from the ground on a clear cloudless day when the sun is highest overhead?
What color is the photosphere as viewed from the ground on a clear cloudless day when the sun is highest overhead? The photosphere appears bright yellow (almost white) as viewed from the ground on a clear, cloudless day. As the Sun approaches the horizon over an ocean, the photosphere appears orange-yellow and as the Sun […]
What are the 3 types of flexibility?
What are the 3 types of flexibility? There are considered to be three main types of stretching methods for muscle flexibility. These are static stretching, dynamic stretching and proprioceptive neuromuscular facilitation (PNF). Is being too flexible bad? By repeatedly pushing past “normal” range, you’re getting micro traumas, which can lead to more serious injury, such […]
Do atoms lose energy when they collide?
Is Absolute Zero Possible?
Is Absolute Zero Possible? Absolute zero, technically known as zero kelvins, equals −273.15 degrees Celsius, or -459.67 Fahrenheit, and marks the spot on the thermometer where a system reaches its lowest possible energy, or thermal motion. There’s a catch, though: absolute zero is impossible to reach. How do you explain thermodynamics to a child? Thermodynamics […]
Are enzymes used up in a reaction?
Are enzymes used up in a reaction? Enzymes are not reactants and are not used up during the reaction. Once an enzyme binds to a substrate and catalyzes the reaction, the enzyme is released, unchanged, and can be used for another reaction. This means that for each reaction, there does not need to be a […]
How many steps are there in critical thinking?
How many steps are there in critical thinking? 5 steps What are the rules for critical thinking? 11 Rules for Critical Thinking All beliefs in whatever realm are theories at some level. Do not condemn the judgment of another because it differs from your own. Read not to contradict and confute; nor to believe and […]
What determines how much load a stream can carry?
What determines how much load a stream can carry? The ability of streams to carry a load is determined by 2 factors: Competence and Capacity. Competence of a stream measures the largest PARTICLES it can transport. A stream’s competence increases with it velocity. The competence of a stream increases 4 times-when the velocity doubles. What […]
What are the disadvantages of passive solar heating?
What are the disadvantages of passive solar heating? Disadvantages of Passive Solar Energy Limited Power Capabilities. Electrical power. Due to the nature of solar energy, it is only possible to generate a limited amount of power. Upfront Costs. Cost. Installing and maintaining a passive solar energy system is expensive. Climate Dependent. Clouds block sunlight. Appearance. […]
What are the seasonal effects of waves on beaches?
What are the seasonal effects of waves on beaches? The equilibrium beach profile results from steady wave forcing during the seasonal cycle. Summer wave conditions move sand onto the beach. Winter storm waves move sand offshore. Unusually large storm events result in a disequilibrium profile, and sand may be permanently lost to deep water. What […]