The non-contact forces portfolio includes Gravitational force, Magnetic force and Electrostatic force.
<h3>What is non contact force?</h3>
Non contact forces are those forces which are applied on any object without any physical interference or contact.
Some non-contact forces are:
- Gravitational force: It acts between two objects and depends on the masses of the object and distance between that objects.
- Magnetic force: It acts due to the motion of the charged particles.
- Electrostatic force: It is a type of induced force which is generated due to rubbing of two objects but when it is generated it remains even after removing the contact of previous objects.
Hence Gravitational force, Magnetic force and Electrostatic force are the non-contact forces.
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We are asked for the energy emitted by a photon using the wavelength given. In this case, we use the planck relation that correlates energy and wavelength using Planck's constant and speed of light as constant of proportionality. The formula is E = hc / w where h is equal to 6.626 x10-34 Js and c is equal to 3 x10 8 m/s. E then is equal to 1.55 x10-24 J
Answer:
To calculate the moles we must first find the molar mass M
M (Na2S2O8) = (23*2) + (32*2) + (16*8)
= 46 + 64 + 168
= 278g/mol
Molar mass = mass/moles
moles =mass / molar mass
= 25.2/278
= 0.0906mol
Hope this helps.
Answer:
Explanation:
Group Most Likely Ionic Charge Number of Valence Electrons
I +1 1
II +2 2
III +3 3
IV +4 or -4 4
V -3 5
VI -2 6
VII -1 7
VIII 0 8
For elements in group IV and above, their ionic charge is (8-number of their valence electrons.)
<em>Kinds of monomers in nucleic acids:</em>
<em>There are 5 types of monomers in nucleic acids they are called nucleutides. </em><span><em>The five pieces are</em><em> uracil</em><em>, </em><em>cytosine</em><em>, </em><em>thymine</em><em>, </em><em>adenine</em><em>, and</em><em>guanine</em><em>.</em></span>
