To answer the problem we would be using this formula which isE = hc/L where E is the energy, h is Planck's constant, c is the speed of light and L is the wavelength
L = hc/E = 4.136×10−15 eV·s (2.998x10^8 m/s)/10^4 eV
= 1.240x10^-10 m
= 1.240x10^-1 nm
Answer: Option 3: THE SAME
Explanation:
The gravitational potential at a point or location is equal to the work per unit mass of a certain body that would be needed to move the body to that point from a reference point or location. The gravitational potential of both the first student that used the elevator and the second student that used the stairs are THE SAME because they both moved from referenced location (first floor) to the other location(second floor) and work is done per unit mass.
Answer:
Δ S = -50 J
Explanation:
given,
Temperature, T = 500 K
Heat dissipates, Q = 25.0 kJ
Q = 25000 J
change in entropy, ΔS = ?
using equation of entropy


Δ S = -50 J
negative sign is used because heat is lost in the surrounding.
Hence, Change in entropy is equal to -50 J
Answer: what is the person’s distance
Answer:
The magnification of the image is 
Explanation:
From the question we are told that
The object distance is 
The image distance is 
The magnification of the image is mathematically represented as

substituting values


The negative value means that the image is real , inverted and enlarged