Forces and A 650 kg steel beam is being

pulled up by a crane with a force

of 7020 N. What is the upwards

acceleration of the beam?

a = [?] m/s2

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?