Lamar gant, u. s. powerlifting star, became the first man to deadlift five times his own body weight in 1985. deadlifting involves raising a loaded barbell from the floor to a position above the head with outstretched arms. determine the work done by lamar in deadlifting 268 kg to a height of 0.90 m above the ground.

Aballet student who learns with the of his instructor is demonstrating learning.

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?