Answer:
The displacements are not equal. While their direction is the same, their length (i.e., distance or magnitude) is not. A is longer than B.
Explanation:
correct on e2020- sample respnse
Answer: There are 2 types of forces, contact forces and act at a distance force. Every day you are using forces. Force is basically push and pull. When you push and pull you are applying a force to an object.
Explanation:
Momentum is the quantity of moving motion if that helps in anyway :)
Answer:
1. The frequency of the incident light must be equal to or greater than the threshold frequency of the photons before emission could take place.
2. The intensity of the incident light is proportional to the amount of photons released. The higher the intensity of light, the greater the amount of photons ejected.
Explanation:
1. Photoelectric effect is the process by which light with sufficient frequency falls on the surface of a material, e.g metal, to emit electrons. The incident light must have a minimum value of required frequency for the electrons to be ejected. This energy is termed work function which is a function of frequency.
So for emission to take place, the frequency of the incident light must be equal to or greater than the threshold frequency of the photons.
2. The intensity of light is a measure of the amount of light per unit area. When the intensity of incident light increases, the probability that photons would be released increases. The intensity of the incident light is proportional to the amount of photons released.
Answer:
1.2 Amps
Explanation:
<em>The question is incomplete, however, according to Ohm's law the current through a conductor between two points is directly proportional to the voltage across the two points.</em>
Given Data
Voltage= 4.4V
Resistance= 5.2 Ohms
V=IR---------------Ohms law
I= V/R
I= 5.2/4.4
I= 1.18
I= 1.2 Amps
Hence the current is 1.2 Amps
