Which one of the following is an example of an indicator?

A. High concentration

B. Presence of H - ions in solution

C. Litmus paper

D. Electricity

Como se define el trabajo de energia en fisica?

If two plates diverge at a rate of 1.3 cm/year, how much farther apart will the plates be after 200 million years?

The __ is responsible for determining the frequency of vibration of the air column in the pool with in a wind instrumen. A. Type of reed use. B. Effective length of the tube. C humidity of the air

Which is bigger, a kilometer or a mile?

What is the approximate period of this wave? 15 centimeters 15 seconds 10 seconds 5 seconds

Consider the moment when the spring is at its maximum compression. At that moment, the kinetic energy, the gravitational potential energy, and the elastic potential energy are, respectively, a - zero, at a maximum, and at a maximum b - at a maximum,

Ari, a young patient who is regularly treated by a psychiatrist, feels compelled to carry out repetitive tasks the same way very frequently. If Ari does not conduct these tasks with extreme precision, he can feel extremely nervous and uncomfortable.

A friend says, "Stars produce energy by a fusion chain reaction of helium into hydrogen." Evaluate the validity of this statement. A) It is an valid statement. Stars produce energy by a fusion chain reaction of hydrogen into helium.

If the mass of a material is 42 grams and the volume of the material is 15 cm^3, what would the density of the material be? answer: Unit:

35. An object of mass m moving at speed v0 strikes an object of mass 2m which had been at rest. The first object bounces backward along its initial path at speed v0.