ANSWER:
A. n=5 to n=1
Hope it helps u!
For cm to m, you need to divide by 100 to get m:
26cm/100= 0.26m
For hr to min, you need to multiply by 60 to get min:
4hr x 60= 240min
For km to m, you need to multiply by 1000 to get m:
3.25km x 1000= 3250m
For ft to in, you need to multiply by 12 to get in:
5ft x 12=60in
So we have:
0.26m
240min
3250m
60in
Answer: Option (b) is the correct answer.
Explanation:
When the cake is baked then due to the heat provided to it there will occur movement of its molecules.
As a result, molecules will gain kinetic energy due to which there will occur collisions between them.
Also, 
Hence, more is the heat provided to the cake more will be the kinetic energy of its molecules due to which when we touch it, it feels hot.
Thus, we can conclude that molecules in the cake are moving faster than molecules in the skin, best explains why the cake feels hot.
Answer:
Calculate the frequency of light having wavelength of 456 nm.
1.22*10^8nm
Explanation:
Answer:
The mass of board is 1.52 g.
Explanation:
Given data:
Density of wood = 0.487 g/cm³
Length of board = 3.21 cm
Width of board = 12.2 cm
Height of board = 0.80 mm (0.80/10=0.08 cm)
Mass of board = ?
Solution:
We know that density of an object is equal to the mass of substance divided by its volume. So we can calculate the mass from density formula.
Formula:
D = m/v
d = density
m = mass
v = volume
Now we will calculate the volume first.
V = length × width × height
V = 3.21 cm × 12.2 cm × 0.08 cm
V = 3.13cm³
Now we will calculate the mass.
D = m/v
0.487 g/cm³ = m/ 3.13 cm³
m = 0.487 g/cm³ × 3.13 cm³
m = 1.52 g
The mass of board is 1.52 g.
