A man supports himself and the uniform horizontal beam pulling the rope with a force T. The weights of men and the beam are 883 N and 245 N respectively. Calculate the tension T in the rope and the forces exerted by the pin at A.

Amplify and switch electrical power and electronic signals

No because scientist are still changing there mines today so they are not correct to this day

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.

+10 that is always the common denominator