1) what is the pressure that is exerted at a depth of 20 meters above sea level?
2) a child releases a balloon, which slowly rises to the sky,
if the balloon has a diameter of 20 cm when the child releases it, what is its diameter at a height of 1000m, 2000m and 5000m
suppose the balloon is very flexible and can ignore surface tension

Isla’s change in velocity is 30 m/s, and hazel has the same change in velocity. which best explains why they would have different accelerations? isla had negative acceleration, and hazel had positive. isla had a different time than hazel. isla had positive acceleration, and hazel had negative. isla went a farther distance than hazel.

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

J. j. thomson’s experiment disproved the theory that an atom