Explanation

Deficiency of phosphorus can cause leaves to develop a dark green coloration, as well as other symptoms such as stunted growth, purplish or reddish tints, and reduced yields.

Explanation

• An oxidation number (also known as oxidation state) is a number assigned to an atom or ion in a compound that represents its degree of oxidation, or its hypothetical charge if all its bonds were ionic.
• It is a way to keep track of the number of electrons gained or lost by an atom in a chemical reaction.

Explanation

• Atoms having same atomic number but different atomic mass, are known as isotopes.
• The difference in the mass is due to the difference in their number of neutrons with the same number of electrons and protons.

Explanation

For a straight wire, the induced current (I) depends on:

• The speed of movement of the wire (v): The faster the wire moves, the greater the induced current.
• The length of the wire (L): The longer the wire, the greater the induced current.
• The magnitude of the magnetic flux density (B): The stronger the magnetic field, the greater the induced current.

The induced current is given by Faraday's law of induction: I = -BLv

Where:

• I is the induced current
• B is the magnetic flux density
• L is the length of the wire
• v is the speed of movement of the wire

Explanation

The Boltzmann distribution is a probability distribution that describes how the energy of a system is distributed among its possible states. It is commonly used to describe the behavior of ideal gases, and is given by the equation: f(E) = (1/Z) * e^(-E/kT)

where:

• f(E) is the probability of finding the system in a state with energy Z is the partition function, which is a normalization constant
• E is the energy of the state
• k is Boltzmann's constant
• T is the temperature of the system.

Explanation

• The 'CREATE TABLESPACE' privilege allows users to create tablespaces at the server level.
• Tablespaces are used for managing the physical storage of tables and indexes.
• This privilege falls under the realm of server administration.

Explanation

Explanation

Chemistry is the scientific study of the composition, properties, and reactions of matter. It deals with the analysis, synthesis, and transformation of matter, and explores the relationships between the properties of matter and its composition.

Chemistry is concerned with:

• Composition: The types and amounts of elements present in a substance.
• Properties: The characteristics of a substance, such as its color, melting point, boiling point, reactivity, and solubility.

Explanation

When the speed of sound in water is 1500 meters per second and the reflected sound waves are detected after 0.40 seconds, the depth of water can be calculated as follows:

• depth = speed x time / 2
• depth = 1500 x 0.40 / 2
• depth = 600 meters

Explanation

• Ethylene bromide (C2H4Br2) is a compound that was formerly used as a scavenger in leaded gasoline to prevent the formation of lead oxide and lead sulfate deposits in engines. It reacted with the lead compounds to form a volatile lead bromide, which was then exhausted out of the engine.
• The use of leaded gasoline and ethylene bromide as a scavenger has largely been phased out due to environmental and health concerns.