How is apparent brightness calculated?

How is apparent brightness calculated? Apparent brightness is thus measured in watts per square meter. For instance, the apparent brightness of the Sun is b = 1370 watts/meter2. That is, if you had a perfectly efficient solar panel one meter on a side, if you held it perpendicular to the Sun’s rays, it would generate […]

How many branches of life science are there?

How many branches of life science are there? thirty Is Anatomy considered a life science? Other life sciences focus on aspects common to all or many life forms, such as anatomy and genetics. Some focus on the micro-scale (e.g. molecular biology, biochemistry) other on larger scales (e.g. cytology, immunology, ethology, pharmacy, ecology). What are the […]

Is a phobia a conditioned emotional response?

Is a phobia a conditioned emotional response? The process of classical conditioning can explain how we acquire phobias. After an association has formed, the dog (now a conditioned stimulus) causes a response of fear (conditioned response) and consequently, we develop a phobia. Can a conditioned response be unlearned? Meanwhile, a conditioned response is learned and […]

Can satellites see fires?

Can satellites see fires? Satellites in orbit around the poles provide observations of the entire planet several times per day, whereas satellites in a geostationary orbit provide coarse-resolution imagery of fires, smoke and clouds every five to 15 minutes. Can satellites detect fires? How Do Satellites Detect Fires from Space? NOAA satellites, such as the […]

What is spherical wave example?

What is spherical wave example? One common example of a spherical wave is a sound wave. When an object oscillates or vibrates in the presence of medium, a sound wave is produced and this wave propagates outward in all possible directions. As the wave travels outward, it carries energy. How do you make spherical waves? […]

What is unit vector and position vector?

What is unit vector and position vector? UNIT VECTOR- a vector which has a magnitude of one. NULL VECTOR- Null vector is a vector with a zero magnitude. POSITION VECTOR- Position vector, straight line having one end fixed to a body and the other end attached to a moving point and used to describe the […]

What does a negative angular acceleration indicate to you?

What does a negative angular acceleration indicate to you? Negative angular velocity(ω) means that the particle is revolving anticlockwise. Thus, negative angular acceleration(α) is a “push” in the anticlockwise direction. If α and ω have the same sign, the body will speed up, else slow down (and eventually go in reverse). Is clockwise positive or […]

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