Answer:
Opposite charge
Explanation:
The electric force between charged bodies at rest is conventionally called electrostatic force. Coulomb's law states the magnitude of electric force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges. According to Coulomb's law, if the two charges are q1 and q2 and the distance between the charges is ‘r’, the force ‘F’ of attraction or repulsion between them is, then,
F ∝ q₁q₂
and
F ∝ 1/ r²
Introducing constant of proportionality and combining the joint variation,
(Coulomb's law)
where k is 1/4πε₀ = 9 × 10⁹ Nm²/C²
Now let's apply Coulomb's law to solve the question.
Like charges attract while unlike charges repel. Since the two objects released from rest carry charges, the force between them is known as the electrostatic force. If the two objects released are assumed to be of equal quantity and of opposite charge, the two objects will attract thereby increasing the magnitude of the charges of the objects. When the magnitude of the charges increase, the electrostatic force of of the charges increase.
It is very interesting step about Relative velocity. Actually, when you'll see the speed of fly in relation to ground, then it's speed would be 65 mph as train is traveling by that speed but if a person in on Train, then fly is at rest for him
Hope this helps!
Answer:
M₂ = M then L₂ = L
M₂> M then L₂ = \frac{M}{M_{2}} L
Explanation:
This is a static equilibrium exercise, to solve it we must fix a reference system at the turning point, generally in the center of the rod. By convention counterclockwise turns are considered positive
∑ τ = 0
The mass of the rock is M and placed at a distance, L the mass of the rod M₁, is considered to be placed in its center of mass, which by uniform e is in its geometric center (x = 0) and the triangular mass M₂, with a distance L₂
The triangular shape of the second object determines that its mass can be considered concentrated in its geometric center (median) that tapers with a vertical line if the triangle is equilateral, the most used shape in measurements.
M L + M₁ 0 - m₂ L₂ = 0
M L - m₂ L₂ = 0
L₂ = L
From this answer we have several possibilities
* if the two masses are equal then L₂ = L
* If the masses are different, with M₂> M then L₂ = \frac{M}{M_{2}} L
The energy carried by the incident light is
where h is the Planck constant and f is the frequency of the light. The threshold frequency is the frequency that corresponds to the minimum energy needed to eject the electrons from the metal, so if we substitute the threshold frequency in the formula, we get the minimum energy the light must have to eject the electrons: