Answer:
I think that those are all true but I'm not completely sure.
Answer:
Explanation:
The speed of a wave in a string is given by:
where
T is the tension in the string
m is the mass of the string
L is the length
In this problem, the mass of the string is increased to 2m: m' = 2 m, while the length is not changed, L'=L. If the tension in the string is not changed, then the new speed of the wave in the string will be:
so, the speed of the wave decreases by a factor
On September 2, 2013, the temperature record at El Azizia, Libya (58° C) was disqualified. Therefore, the highest temperature recorded on the surface of the earth was recorded in 1913 at Death Valley, California. The mercury climbed to 56.7° C.
Answer:
The mass of the block, M =T/(3a +g) Kg
Explanation:
Given,
The upward acceleration of the block a = 3a
The constant force acting on the block, F₀ = Ma = 3Ma
The mass of the block, M = ?
In an Atwood's machine, the upward force of the block is given by the relation
Ma = T - Mg
M x 3a = T - Ma
3Ma + Mg = T
M = T/(3a +g) Kg
Where 'T' is the tension of the string.
Hence, the mass of the block in Atwood's machine is, M = T/(3a +g) Kg