Okay so we need to bring a couple of equations into this
First E =F/q
We have our q and E lets solve for F
F = Eq
So remember th equation
F = qV x B
F = qVBsin(Ф)
The angle is perpendicular so
sin(90) = 1
F = qVB
Solve for V
F/qB = V
Eq/qB = V
Look at that the charges cancel out!
V = E/B
(Fun fact: Thats what they use in mass spectrometers which is why it says the particle should travel in a straight line)
Anyways lets solve this!
V = 2/5
V = 0.4 m/s
there are 2 forces acting on the particle: magnetic n electric force
the 2 forces must be equal 4 it to travel in a straight line
as it has +1C charge, q, the charge is dropped in the following:
magnetic force = qv x B where v is velocity n B is magnetic field;
x represents cross-product which in this case of 90-deg. is same as multiply
magnet force = v*5
electric force = qE where E is electric field
= 2
as magnet force = electric force
v*5 = 2
v=2/5=0.400m/s
b) They are mostly negative.
c) They are close to zero.
d) They are mostly positive.
Answer: The correct option is (c).
Explanation:
The electric force exists between the charged particles only.
The electric force between the negatively or positively charged particles is attractive in nature while the electric force between the negative and the positive charged particles is repulsive in nature.
Matter consists of atoms. Atom consists of electrons, protons and neutrons. Only, electrons can move. If the atom loses electrons then matter gets negatively and positively charge respectively.
In the given problem, the matter is mostly neutral on a large scale. On a large scale, the electric forces are close to zero.
Therefore, the correct answer is (c).
The first and the third harmonics are predominant because they produce odd partials.
We know that the clarinet is a wind instrument. Wind instruments are those instruments that produce sound when a column of air is vibrated inside the instrument.
The clarinet closely follows the harmonics of a pipe that is open at one end. Hence, the first and the third harmonics are predominant because they produce odd partials.
Learn more about harmonics: brainly.com/question/1984022
Answer:
the water flow rate is higher than the atmospheric pressure
c. increases, increases
b. decreases, decreases
d. both b and c are correct
The type of enzyme that are synthesized in an environment where an operon codes for enzymes that synthesize a protein from precursor amino acid molecules are the repressible enzymes. It binds to the operator and blocks attachment of RNA polymerase to the promoter, preventing transcription of the genes.