Ablock of wood weighing 25 n is subrnerged under water. if the net force on the wood is 5 n upward, how much buoyant force is acting on the wood?
a) 30 n upward
b) 20 n upward
c) 5 n upward
d) 25 n downward

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.