Answer:
(c) 10.29 J
(d) 113.19 J
(e) 113.19 J
(f) 10061 N/m
Explanation:
15 cm = 0.15 m
Let g = 9.8 m/s2
(c) The work done by gravitational force is the product of gravity force and the distance compressed
(d) By using law of energy conservation with potential energy reference being 0 at the maximum compression point. As the ball falls and come to a stop at the compression point, its potential energy is transferred to elastic energy, which is the work that the mattress does on the ball:
where h = 1.5 + 0.15 = 1.65 m is the vertical distance that it falls.
(e) Before the compression, the potential energy of the mattress is 0. After the compression, the potential energy is 113.19J. So it has increased by 113.19J due to the potential energy transferred from the falling ball.
(f) 
Answer:
When a neutral atom looses an electron to another neutral atom, two charged atoms are created.
Explanation:
On the off chance that one of the two unbiased particle looses an electron, it turns out to be emphatically (charge: +1), in light of the fact that the electron conveys a charge of - 1. Thus, the other atom which acknowledges the electron turns out to be adversely charged (charge: - 1). And in the end, we will have two charged atoms.
Answer:
Explanation:
60 meters is he answer for this question
Answer:
281.6 K
Explanation:
The speed of sound in an ideal gas is given by c = √(γKT/m).
From the question speed of sound in Ne, c₁ = 2c₂ speed of sound in Kr
c₁ = √(γKT₁/m₁) and c₂ = √(γKT₂/m₂)
So √(γKT₁/m₁) = 2√(γKT₂/m₂) where T₁, m₁ and T₂, m₂ are the temperatures and atomic masses of Neon and Krypton respectively.
So, √(T₁/m₁) = 2√(T₂/m₂)
(T₁/m₁) = 4(T₂/m₂) (squaring both sides)
T₁ = 4(T₂m₁/m₂)
Given that m₁ = 20.2 u , m₂ = 83.8 u, T₂ = 292 K
T₁ = 4(292 × 20.2/83.8) K = 23593.6/83.8 = 281.55 K ≅ 281.6 K
