What sound intensity is defined as the level of pain? The level of pain is about 120 dB at all frequencies. The change in physical pressures from threshold of hearing to threshold of pain is twice as great at 2000 Hz (120 dB) as it is at 50 Hz (60 dB). How do you describe […]
Is loudness related to frequency?
Is loudness related to frequency? Now when talking about sound waves the sound level of a noise (loudness), it is proportional to the intensity of the source. The loudness of a sound does not seem to depend on frequency. But according to the equation above, intensity DOES depend on frequency. How loud is 1000hz? Using […]
Which are characteristics of a ray when it hits a boundary and refracts but not?
Which are characteristics of a ray when it hits a boundary and refracts but not? F. Only these two options are characteristics of a ray when it is refracted, but not when it is reflected. In fact: Reflection occurs when a ray hits the interface between two mediums and bounces off back. When it is […]
What is the point of neutrons?
What is the point of neutrons? Neutrons bind with protons and one another in the nucleus via the nuclear force, effectively moderating the repulsive forces between the protons and stabilizing the nucleus. How quickly does a neutron bomb kill? two days Is there a doomsday bomb? In a 2-part episode of the TV show The […]
How expensive is a Slinky?
How expensive is a Slinky? Slinky was introduced, the $10. price for three is not out-of-line. Who invented Slinky? Richard T. James What slinky means? 1 : characterized by slinking : stealthily quiet slinky movements. 2 : sleek and sinuous in movement or outline especially : following the lines of the figure in a gracefully […]
Do construction workers eat on beams?
Do construction workers eat on beams? The sight of 11 Rockefeller Center construction workers casually eating lunch across a beam hanging 850 feet in the air was a hopeful look at life in the ’30s. It showed the world that New York City—and America as a whole—was still building, still progressing, and, most importantly, still […]
What are the two theories of population?
What are the two theories of population? The theories are: 1. The Malthusian Theory of Population 2. The Optimum Theory of Population 3. The Theory of Demographic Transition. What are the three basic phases of population growth? They are: (i) the high stationary phase marked by high fertility and mortality rates; (ii) the early expanding […]
How many years does it take to be a clinical psychologist?
How many years does it take to be a clinical psychologist? To become a clinical psychologist, you will need an undergraduate degree (four to five years of college) plus a doctorate degree (four to seven years of graduate school). For this specialty area, most people will spend between eight to 12 years in higher education. […]
What are 3 ways to improve your body composition?
What are 3 ways to improve your body composition? Summary: Nutrition and exercise are critical for improving body composition. Keeping your calories, fiber and protein in check is a good first step. All exercise can help with fat loss, but weight training is the best way to increase muscle mass. What is the best way […]
How does popcorn popping relate to gas laws?
How does popcorn popping relate to gas laws? This phenomenon can be explained by the Gay-Lussac gas law, which states that as the temperature of a gas increases, so does the pressure. During the explosion, the starch granules that contain the water vapor expand enormously – turning the kernel inside out and producing a fluffy […]