Answer: 18.9 m
Explanation:
i did the kinematic equation & found the answer.
Answer:
The wavelength of the incident light is
400 nm
Explanation:
Given data
Distance between the sits

d = 1.5 ×
m
°
m = 2
We know that the wavelength of the incident light is given by

Put all the value in above formula we get
×
4 ×
m
400 nm
Therefore the wavelength of the incident light is
400 nm
Answer:
t = 3.35 s
Explanation:
It is given that,
Mass of a pumpkin, m = 8 kg
It is dropped from a height of 55 m
We need to find the time taken by it to hit the ground.
Initial velocity of the pumpkin, u = 0
Using second equation of motion to find it as follows :

So, it will take 3.35 seconds to hit the ground.
Answer:
The correct answer is "64 J".
Explanation:
The given values are:
Mass,
m = 52 kg
Velocity,
v = 6 m/s
Mechanical energy,
= 1000 J
Now,
The gravitational potential energy will be:
⇒ 




2: Fusion occurs constantly on our sun.When nuclei fuse create a heavier nuclear and produce a little leftover energy in the process