haruspex's latest activity

For future reference: Please provide the full statement of the problem exactly as given to you including any diagrams. If the answer is...

Good, but do you now see how to get that answer?

From the perspective of the physics, the key is that the device needs to exert a certain impulse without exceeding some threshold force...

But that cannot apply here since it would provide no way to judge distances. Without goggles, a real eye cannot focus because the lens...

It’s possible that there is a mistake with the question’s wording (Post #1) and a mistake in the diagram (Post #9). If the viewer's eye...

The other cords are not attached to the weight. Each body only "knows" about the forces that act directly on it. The suspended body is...

So what does that tell you about the net force acting on it? And what forces contribute to that total?

What forces act on the suspended object? Is the suspended object accelerating? The "relevant equations" item in the template is for...

The apparent height of the whole block is the sum of the apparent height of the submerged portion and the apparent height of the exposed...

Thanks for the clarification.

I've stayed out of this thread because I have trouble deciphering the meaning of some parts… whom? their? I have no idea what is...

I still fail to see how it could appear to be less than the true height when viewed from the denser medium.

Wouldn’t that make the height seem greater?

First, choose your axes. You don't have to have x as horizontal and y as vertical. Sometimes it makes the algebra easier if you...

My approach was: When the cart has moved s from the cannon, how much water has the cannon ejected? How much of that has reached the...