Why is styrofoam not a mineral?

If a transformer has a primary with 100 V and fifty coils, and a secondary that yields 20 V, how many coils are on the secondary? a.) 200 b.) 20 c.) 50 d.) 10 e.) 100

the same force is applied to two skateboards. one rolls across the room and the other moves a few feet and comes to a stop. where was there more work done

The SI unit for pressure is pascal (Pa). One hectopascal would equal how many pascals? 0.1 Pa 10 Pa 100 Pa 1000 Pa

What are the types of pulleys

The fast server in women's tennis is Venus Williams, who recorded a serve of 130 mi/h (209 km/h) in 2007 If her racket pushed on the ball for a distance of 0.11 m, what was the average acceleration of the ball during her serve?

What instrument can you use to measure the circumference of your waist?

Which will reduce the possible environmental damage associated with mining uranium? installing newer water recycling systems in older power plants increasing the reprocessing of used fuel for reuse building additional fission nuclear power plants

Two oppositely charged but otherwise identical conducting plates of area 2.50 square centimeters are separated by a dielectric 1.80 millimeters thick, with a dielectric constant of K=3.60. The resultant electric field in the dielectric is 1.

How will sunlight most likely affect a black shirt on a hot summer day?

A group of hikers hears an echo 2.90 s after shouting. How far away is the mountain that reflected the sound wave? (Assume the speed of sound is 341 m/s.)