Answer:
Atoms are the most basic units of an element whereas molecules are atoms that are chemically bonded together.
Explanation:
- The atoms are made up of protons, neutrons, and electrons that are the basic constituents of matter.
- The atoms occur in nature as single or bonded.
- The inert gases are the atoms that they occur as the individual atoms in nature.
- All other atoms in nature are bonded to the same elements or different elements and form molecules.
- Hence, atoms are the most basic units of an element whereas molecules are atoms that are chemically bonded together.
Answer:
The resting membrane potential is the voltage across the membrane of a resting or non- signalling neuron.The resting potential is determined by concentration gradients of ions across the membrane and by membrane permeability to each type of ion.
The resting membrane potential of a neuron is about -70 mV (mV=millivolt) - this means that the inside of the neuron is 70 mV less than the outside. At rest, there are relatively more sodium ions outside the neuron and more potassium ions inside that neuron.
All of these can provide voltage. a battery is a generator, and plugging in to an electrical outlet is just like your phone charger or TV..
Wavelength = (speed) / (frequency)
(331 m/s) / (256 /s) = 1.29 meter (rounded)
Answer:
Explanation:
Given that
An isotropic point source emits light at a wavelength = 500 nm
Power = 185 W
Radius = 380 m
Let's first calculate the The intensity of the wave , which is =
=
=
=
Now;
The amplitude of the magnetic field is calculated afterwards by using poynting vector
i.e
The magnetic field wave equation can now be expressed as;
Taking the differentiation
The maximum value ;
where ;
then