When was the triple beam balance invented

Which of these is a way to conserve freshwater? A. Add water features to private gardens B. Build thermal power plants C. Install low-flush toilets D. Avoid drip irrigation systems on farms (Environmental Science Sem 2)

A train that travel 100 kilometer in 4hours is traveling at what speed?

A tall, cylindrical chimney falls over when its base is ruptured. Treat the chimney as a thin rod of length 53.2 m. At the instant it makes an angle of 34.

a young woman decides to jump out of a parachute. She falls for 3.14 seconds before her chute opens. Calculate thr velocity when the canopy begins to open. neglect motion and air resistance.

What do scientists call the theory that the universe will shrink in the future? a. Collapse theory c. Blue-shift deterioration b. The Big Crunch d. The Big Collapse

The distance between two consecutive crests is 2.5 meters. Which characteristics of the wave does this distance represent?

Who first landed on the moon?

What factors affect the speed of a wave? Check all that apply. the amplitude of the wave the energy of the wave the temperature of the medium the type of wave the type of medium

A sound level of 96 dB is how many times as intense as one of 90 dB?

Which type of waves are whale songs in an ocean?