A boulder is dropped into a deep lake. What happens to the b… A boulder is dropped into a deep lake. What happens to the buoyant force on it as it sinks deeper? Read Details
A metal bar weighs 80 [N] in air. Submerged in fresh water,… A metal bar weighs 80 [N] in air. Submerged in fresh water, a scale reads 60 [N]. What is the buoyant force on the bar? Read Details
You dive one meter below the surface of a small backyard poo… You dive one meter below the surface of a small backyard pool, then one meter below the surface of a large lake. How do the pressures on your ears compare? Read Details
A hydraulic press turns a small force into a large one. Whic… A hydraulic press turns a small force into a large one. Which earlier idea sets the price? Read Details
Water rises about 5 [cm] in a glass tube with a half millime… Water rises about 5 [cm] in a glass tube with a half millimeter bore. In a tube with a quarter millimeter bore, what happens? Read Details
A mercury barometer stands at 76 [cm]. Mercury is 13.6 times… A mercury barometer stands at 76 [cm]. Mercury is 13.6 times as dense as water. What height of water would balance the same atmospheric pressure? Read Details
The buoyant force on a fully submerged object in fresh water… The buoyant force on a fully submerged object in fresh water is 39.2 [N]. What volume of water did it displace? Read Details
Capillarity needs two attractions to work. Which pair? Capillarity needs two attractions to work. Which pair? Read Details
A rock of volume 0.0080 [m3] is fully submerged in fresh wat… A rock of volume 0.0080 [m3] is fully submerged in fresh water. What is the buoyant force on it? Read Details
Why does the atmosphere have no definite surface the way a l… Why does the atmosphere have no definite surface the way a lake does? Read Details
