An electric bell is placed inside a transparent glass jar. the bell can be turned on and off using a switch on the outside of the jar. a vacuum is created inside the jar by sucking out the air. then the bell is rung using the switch. what will we see and hear?

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Explain what will happen if decomposers were apsent from a forest ecoysystem.

As seen in a us weather map, the h (or high) and l (or low) symbols indicate regions where surface air pressures are high or low, respectively, compared to surrounding areas. an h is plotted where the air pressure is highest and an l is plotted where the air pressure is lowest. proceeding outward and away from the center of a high pressure system, the air pressure "