What causes precipitation fronts

Ions that carry a positive charge are called a. anions b. cations c. mineralytes d. valence ions

4. A student wants to determine what type of cereal his classmates like best. He buys 3 boxes of his most favorite puffed rice cereal and one oat cereal. He pours 5 bowls of each cereal and gave one to 20 of his classmates.

The apparent displacement of an object as it is viewed from two different positions is known as A. parallax. B. a parsec. C. a light-year. D. an arcsecond.

An observer in the Earth reference frame observes cart A and cart B moving toward each other with the same speed until they collide and come to rest. Consider this event as seen by observer A moving along with cart A.

A steel piano string of mass per unit lenght 4*10-⁴kgm-¹ was struck, if the speed of the sound on the string is 300ms-¹. Calculate the tension.

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?

Which is normally greater: static friction or sliding friction on the same object? Static friction is normally greater than dynamic friction. On the same object, static friction and dynamic friction are equal.

A child pulls a wagon 3.0 m using a force of 55 N at an angle 35° above horizontal. The force of friction on the wagon is 12 N. Calculate the net work done on the wagon