Aforce of 450 n accelerates a box across a frictionless surface at a rate of 15 m/s 2 . what is the mass of the box? 30 n 30 kg 6,750 n 6,750 kg

The metric unit of electrical power is the watt volt ampere ohm

Carbon 14 is a naturally occurring stable

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?