Termometer X menunjukkan skala - 10°x, ketika dicelupkan ke dalam air es dan menunjukkan skala 90°x ketika dicelupan ke dalam air mendidih. Suhu 50°x itu sesuai dengandengan

A. 40°C

B. 60°C

C. 60°C

D 70°C

E. 80°C

Maxwell shoots a rubber band at his friend Jimmy. Which type of energy is converted into kinetic energy? A) elastic potential energy B) nuclear potential energy C) chemical potential energy D) gravitational potential energy

A tube is open only at one end. A certain harmonic produced by the tube has a frequency of 450 Hz. The next higher harmonic has a frequency of 750 Hz. The speed of sound in air is 343 m/s.

When do most ionic bonds form

An atmospheric discharge of static electricity is called

If the gravitational force between objects of equal mass is 5.0*10^-9 N when the object are 12 m a part. What is the mass of each object?

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

A heat engine has a cold reservoir of 250°C and a hot reservoir of 715°C. What is the efficienvy of the engine?