When you squeeze the rubber bulb of a perfume atomizer how do you change the air pressure at the top of the tube

Boys produce a fluid called?

How could you show that sound travels through water?

Zach, whose mass is 80 kg, is in an elevator descending at 10 m/s. The elevator takes 3.0 s to brake to a stopat the first floor. a. What is Zach's apparent weight before theelevator starts braking? b.

According to Newton's First Law of Motion, if a ball is rolled in a straight line in an open field, what will happen to the ball? A. The ball will continue on forever. B. The ball will slow down. C. The ball will not change its velocity. D.

An object is represented by the dot on a motion map. What is the best description for the motion of this object? The object is moving with a constant speed. The object is moving with a constant acceleration. The object is standing still.

which of the following are good conductors under normal conditions? A. Penny B. copper wire C. a dime D. plastic E. aluminum foil F. water

Which example involves the transformation of chemical energy directly into light energy? A) a wind mill B) a glow stick C) photosynthesis D) a hydroelectric dam (I'm pretty sure it's b, but just want to make sure)

What is heat? A. A measure of the movement of molecules inside an object B. The transfer of energy from a hot object to a cold object C. The force exerted on an area by an object D. A measure of mass per unit volume of an object

What is the difference between a battery losing charge (discharging) and a capacitor losing charge (discharging) ?

When you squeeze the rubber bulb of a perfume atomizer how do you change the air pressure at the top of the tube