(a) 
The radius of the trajectory of a charged particle moving perpendicular to a magnetic field is given by
where
m is the mass of the particle
q is its charge
v is its velocity
B is the strength of the magnetic field
In this problem, we have:
B = 1.20 T
r = 0.231 m
Solving for q, we find its charge:
(b) 3
The charge of an electron is
While the charge of this oxygen ion is
So, the ratio between the two charges is
(c) Because an ion is an atom that has gained/lost an integer number of electrons
An ion is an atom that has gained/lost an integer number of electrons. In this particular case, we see that the charge of the oxygen ion is 3 times that of the electron: this means that the ion has gained/lost exactly 3 electrons.
The ratio found in part (b) cannot be a fraction, because that would mean that the atom has gained/lost a fractional number of electrons: but this is impossible, since the electron is a fundamental particle so it cannot be "divided", therefore the ratio must be an integer.
Since kintetic energy is the energy of motion it depends on the two mass affects inertia and inertia applies to kinetic energy. and speed is applied because the faster it going the more kinetic energy the object has.
The equation that relates the temperature of an object to the wavelength of its peak radiation is called Wien's law. Wien's law states that: the <span>black body radiation curve for different temperatures peaks at a wavelength inversely proportional to the temperature.</span>
Answer:
Combustion reaction resulted in formation of Hydrogen gas.
Explanation:
When zinc and Hydrogen Chloride (HCl) are mixed together, it is a oxidation reduction process. To be specific, a combustion reaction takes place. It is an exothermic reaction. Exothermic reactions involve oxygen and generate . Here, due to this exothermic reaction, Hydrogen gas is being produced which results in the formation of bubble and inflation of balloon.
The normal force of the force given is calculated through the equation,
Fn = F(sin θ)
where Fn is the normal force, F is the force, and θ is the angle.
Fn = (25 N)(sin 60°) = 21.65 N
The x-component of the force applied is,
Fx = (25 N)(cos 60°) = 12.5 N
The value of the coefficient of static friction is calculated through the equation,
F = μFn
μ = Fx / Fn = 12.5 N / 21.65 N = 0.577
