What is the wavelength of a sound wave that has a speed of 250m/s and a frequency of 400hz

What is the electric potential energy of a charge that experiences a force of 3.6x10^-4 N when it is 9.8x10^-5 m from the source of the electric field? A) 3.5x10^-8 J B) 4.6x10^-4 J C) 2.7x10^-1 J D) 3.7x10^0 J

An object in space is initially stationary relative to the Earth. Then, a force begins acting on the object, starting with a force of 0 N, and increasing at a uniform rate until the magnitude of the force is 36 N after the force has acted for 35 s.

Which method of separation can be used for a heterogeneous mixture? A. by distillation B. by densities C. by chromatography D. by acidification

Determine the density of a rectangular piece of concrete that measures 3.7 cm by 2.1 cm by 5.8 cm and has a mass of 43.8 grams.

What does a trench form? What happens here?

Describe one example of competiton of tropical dry forest

What is the center of a tornado called A. the eye B. The center C. The middle road D. The vortex

Is it legal in Florida for a math teacher forces the kids to do push ups?

Acceleration is best defined as the rate of change of blank of an object

Zirconium has an atomic number of 40. How many neutrons are there in an isotope of zirconium-92?