Recent content by RaeZ

My teacher said it was assumed in the problem that the fish was looking at its prey, sorry, I guess I should have included that

A basketball player would be looking at the net when shooting a freethrow, and the angle of his shot would be above his line of sight, so does that mean that the archerfish's lines of sight can't be greater and the angle of the squirt of water?

Homework Statement An archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish's mouth. Suppose the archerfish squirts water with a speed of 2.00 m/s at an angle of 50 degrees above the horizontal, and aims for a beetle on a...

Thank you!

If I know that there is no acceleration, can I use Newton's second law to conclude that the friction force is equal to the force enacted upon the fridge by the man?

I was given a diagram (below) and told the force exerted by the man on the refrigerator is 200 N. In this case the man is A and the refrigerator is B

Homework Statement A man is exerting a force of 200 N on a refrigerator and pushing the fridge across a rough floor at a constant velocity to the right. How much friction force acts on the refrigerator ? Give a number and appropriate units. Homework Equations none The Attempt at a Solution I...

How can I eliminate acceleration, the acceleration water is different than the acceleration in air

I have the same problem with that though, I could use the third equation and solve for v_0, with a final velocity of zero, but i do not know their acceleration in the water...

I drew the diagram for this and looked at previous problems but none gave as little information. I also tried to use the third equation with v_0=0 and d=3 for the fall from it's maximum height to the water, but this doesn't make sense since the displacement was more than three since they jumped...

Homework Statement A diver jumps vertically straight up off of a platform 3 meters above the surface of a pool below. The diver hits the water and comes to rest in 0.80 seconds after traveling through 3.6 vertical meters of water. (See the diagram below). Assume the acceleration of the diver...