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 […]
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 […]
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 […]
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 […]
Can a Boeing 747 break the sound barrier?
Can a Boeing 747 break the sound barrier? As it shot across the Atlantic, the Boeing 747-400 jet reached a top ground speed of 825 mph. However, the jet did not actually break the sound barrier, because that is measured by its airspeed, or the speed of the plane relative to the air through which […]
Can anything survive a black hole?
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. […]
What is Catenation explain with reference to group 14?
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. […]
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 […]