The efficiency of the machine is
output energy / input energy
= output power / input power
= 3,761 watts / 4,000 watts
= (3,761 / 4,000)
= 0.94025
= 94.025 %
B because all the other answers are true. physical activitys can relax muscles release tension and release stored energy. all those are ways of reducing stress. B is not a way to reduce stress it actually causes stress.
Answer:
The mechanical advantage of a wedge can be calculated by dividing the length of the wedge's slope by the wedge's width: The more acute, or narrow, the angle of a wedge, the greater the ratio of the length of its slope to its width, and thus the more mechanical advantage it will yield
Answer:
The magnitude of the force on the wire is 2.68 N.
Explanation:
Given that,
Length of the wire, L = 5 m
Magnetic field, B = 0.37 T
Angle between wire and the magnetic field, 
Current in the wire, I = 2.9 A
We need to find the magnitude of the force on the wire. The magnetic force in the wire is given by :
So, the magnitude of the force on the wire is 2.68 N. Hence, this is the required solution.
Answer: Nitrogen
Explanation: Nitrogen makes up 78% of the atmosphere, Oxygen makes up 21%, and Argon 0.9%.
Water vaper makes up between 1-4%, depending on the region.
Carbon Dioxide makes up only about 0.04%.
