Answer:
The answer is the First One
Explanation:
Electromagnets can work with a magnetic source, and not just electric. sorry if my answer turns out to be wrong
Answer:
a)T= mg/2
b) T = 31. 88 N
c)Tension will increase
Explanation:
Given that m= 6.5 Kg
a)
The force due to gravity = m g
The tension in the chain = T
The total tension = 2 T
By balancing force in vertical direction
2 T = m g
T= mg/2
b)
2 T = m g
2 x T = 6.5 x 9.81
T = 31. 88 N
c)
Lets take angle made by chain is θ
So the total tension in vertical direction = 2 T cos θ
2 T cos θ = m g
T= mg/(2cos θ)
It means that tension will increase because cos θ is always less than 1.
Answer:
Adiabatic
Explanation:
An adiabatic process is a thermodynamic process in which the system does not exchange heat with its surroundings. An adiabatic process may also be isentropic, meaning that the process may be reversible. The term adiabatic refers to elements that prevent heat transfer with the environment. An insulated wall is quite close to an adiabatic boundary. Hence the term of the adiabatic wall appears.
Air is a bad thermal conductor, this means that air is a system that makes it difficult to change the temperature with the systems around it, so we can conclude that the above question deals with the thermodynamic process called adiabatic.
