Answer:
0 N
Explanation:
The elevator is under free fall. So, when a body is under free fall, the acceleration is only due to gravity. So, the acceleration of the elevator or the woman inside it, is acceleration due to gravity in the downward direction.
The spring scale gives the value of the normal force acting on the woman and doesn't give the exact weight of the woman. Under normal conditions, when the spring scale is at rest, then the upward normal force equals the weight and hence weight of a body is equal to the normal force acting on the body.
But, here, the body is not at rest. Weight\tex](mg)[/tex] acts in the downward direction and normal force
acts in the upward direction. The woman is moving down with acceleration equal to acceleration due to gravity
So, we apply Newton's second law on the woman.
Net force is equal to the difference of the downward force and upward force.
Now, 
Therefore, the reading on the spring scale is 0 N.
Answer:
/ Em₀ = 0.30
Explanation:
In this exercise we use the relationship of mechanical energy, kinetic energy and gravitational potential energy
K = ½ m v²
U = mgh
We calculate the mechanical energy at two points
Initial. Lower
Em₀ = K = ½ m v²
Highest finish
= U = mg and
Let's calculate
Em₀ = ½ m 3.6 2
Em₀ = m 6.48
= m 9.8 0.20
= m 1.96
The fraction of lost energy is
/ Em₀ = m 1.96 / m 6.48
/ Em₀ = 0.30
30% sun is converted into potential energy
It has several transformation possibilities
It is transformed into thermal energy of air and spores, since this energy cannot be recovered
Answer:
Below
Explanation:
1. Everest
2. Godwin Austen
3. Kangchenjunga
4. Lhotse
5. Makalu
6. Cho Oyu
7. Dhaulagiri
8. Manaslu
9. Nanga Parbat
10. Annapurna
Sorry I don't know anything about their types :(
I hope this helps you :)
