Aconstruction engineering company needs to purchase 1,000 sheets of steel. which option is the most cost-effective way to purchase them? 100 sheets at a time for $500 200 sheets at a time for $1,000 500 sheets at a time for $1,500 1,000 sheets at a time for $3,500

Ogle–2013–blg–0723 is an exoplanet that is similar to earth in size and proximity to its star. this exoplanet has mass m=4.18×1024kg and radius r=5.66×106m. an astronaut whose weight on earth is w=735n lands on the planet. a. calculate m, the mass of the astronaut. b. calculate gp? , the acceleration due to gravity on the surface of ogle–2013–blg–0723. c. calculate wp? , the weight of the astronaut on the surface of ogle–2013–blg–0723. d. calculate v, the minimum velocity required to put an object into orbit above ogle–2013–blg–0723. e. calculate t, the time required to complete an orbit around ogle–2013–blg–0723.

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2