What is Catenation explain with reference to group 14? The property of self-linking of atoms of an element through covalent bonds to form straight or branched chains and rings of different sizes is called catenation. Amongst the group 14 elements, C-C bond strength (355 kJ mol1) is maximum, therefore, carbon shows maximum tendency for catenation. […]
Does glucose use channel protein or carrier protein?
Does glucose use channel protein or carrier protein? The uptake of glucose, which serves as a primary source of metabolic energy, is one of the most important transport functions of the plasma membrane, and the glucose transporter provides a well-studied example of a carrier protein. How are proteins transported into nucleus? Proteins destined for the […]
Which country has night only 40 minutes?
Which country has night only 40 minutes? Norway Why is the rising sun important to Japan? During the 19th Century, the rising sun symbol became the flag of the military. As such, it was flying during Japan’s imperialist expansion when it occupied Korea and part of China. Why does the sun rise early in Japan? […]
What is a molecule that is not a compound?
What is a molecule that is not a compound? Compound Basics Let’s start with molecules. All compounds are molecules, but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element. Water (H2O) can be called a molecule or a compound because it […]
Which trial has the greatest impulse?
Which trial has the greatest impulse? Explanation: impulse equals force x time so for each trial it would be a force which is 500 x 8 individual time trial 3 has the highest time which would equal the highest impulse. What type of relationship exists between momentum and mass? Mass and velocity are both directly […]
What is the direction of drag force?
What is the direction of drag force? Drag is a force and is therefore a vector quantity having both a magnitude and a direction. Drag acts in a direction that is opposite to the motion of the aircraft. Lift acts perpendicular to the motion. Is buoyancy a drag force? Drag is due to frictional resistance […]
Can anything survive a black hole?
What are three properties of a permanent magnet?
What are three properties of a permanent magnet? 3 properties of a magnet: The three properties that all magnets have are that they all attract certain metals, they have north and south poles, and two of the same poles will repel each other, while opposite poles will be attracted to each other. Which metals do […]
Does an object on the ground have potential energy?
Does an object on the ground have potential energy? Potential energy is energy that is stored in a person or object. The object has the potential to fall due to gravity. Gravitational potential energy depends on an object’s weight and its height above the ground (GPE = weight x height). Elastic potential energy is due […]
What happens when a sound source is moving?
What happens when a sound source is moving? When the sound source moves toward an observer, each successive wave is emitted closer to the observer than the previous wave and takes just a little less time to reach the observer than the previous one. Since the time between waves is reduced, the frequency is increased. […]