Anytime a scientific theory is challenged does it mean that its not a good theory

A sound wave in the air has a frequency of 680 cycles per second. What is the approximate wavelength of the sound wave

If you are going on a trip ad want to bring information that shows accurate landmass shape, which item would you bring? A. globe B. celestial charts C. equal-area project D. mercator projection

A glass lying on table doesn't possess friction. why?

A driver in a car traveling at a speed of 21.8 m/s sees a cat 101m away on the road. How long will it take for the car to accelerate uniformly for 3.2 km in 3.5 min. How fast (in m/s) is the car moving after this time?

In written out as a decimal number (like 0.25 or 0.45), what fraction of the Earth's mass is held within a sphere with a radius of "1/4" Earth?

A man dressed in all black is walking down a country lane. Suddenly, a large black car with no lights on comes around the corner and screeches to a halt. How did the car's driver know he was there? this is tricky

The gravity of mercury is 3.7 n/kg. Find the mass of an astronaut who weights 241 Newton's on mercury

Why does oxygen have a lower ionization energy than nitrogen?

Traditional Indonesian music uses an ensemble called a gamelan that is based on tuned percussion instruments somewhat like gongs. In Bali, the gongs are often grouped in pairs that are slightly out of tune with each other.

An instrument used to detect a static electric charge is called an ammeter. a. true b. false