Floating Cube!
What is the density of the unknown material?
Hanging Mass!
What is the charge on the hanging mass?
Hovering Mass!
What is the mass of the object if remains in equilibrium?
Pulley Person!
If the system is still on equilibrium, find the force the floor exerts on the box.
Pool Competition!
How much mass does Juanito's father appear to have inside the pool?
Wave on a Long Rope
A block of mass m is hanging from a \(15\) m long rope with \(1.5\) kg of mass. A [...]
Sliding Trophy!
Find the the maximum angle that the shelf can form with the horizontal before the trophy starts sliding.
A Circuit and a Mass!
Determine the direction of the current in the circuit and its value between points \(a\) and \(b\)
Abandoned Boat!
How much does the boat weight? What is its average density?
Sphere Attached to a Block!
A block is attached by a rope to a sphere. Find the mass of the block.
Cork!
If the scale shows 110 g, what is the density of the cork?
Man Overboard!
What is the coefficient of static friction between the deck and the captain's shoes?
Speed of a Stretched Spring
A spring is stretched to its maximum displacement and then released.
Painter on a Ladder!
Find the minimum static coefficient of friction for the ladder to not slip.
Piston at Equilibrium!
Calculate the temperature of the box such that the brick is at equilibrium.
Spheres in Water!
Determine if the spheres float when immersed in water.
Toy Mobile!
Calculate the values for the unknown masses so the toy is at equilibrium.
Standing on a Uniform Bar!
Find the maximum distance x where a 75 kg person can stand so the system maintains equilibrium.
Unknown Liquid!
If the water side was closed to vacuum, what would be the density of the other liquid be? Does it make physical sense?
Cube in Water and Oil!
How much pressure is exerted on the top and bottom faces of the cube?