Recent content by velo city

Homework Statement A certain mass of water in a copper pot is heated over a stove that releases joules of heat to heat the water. Later the same mass of water in an aluminum pot is heated over another stove that releases the same amount of heat in order to heat the water. Then the water in...

I also forgot to take the square root and divide when I solved for the time. Stupid me.

I used a =0 as there is no acceleration in the x direction

You should probably watch this video: . It will help you understand if you watch the whole thing. I don't want to give you a solution cause that is against the rules. So that video should help. Also watch this one:

the trig comes only from projectiles launched at an angle. In this case that angle (ø) is 0 because the car is only moving horizontally.

I don't think the car has an initial vertical velocity right?

By the way I was using the time for the fall to find the x displacement. So my solution was not wrong.

sorry i will change it.

First of all whether you throw something horizontally or dropping it does take the same time. However this does not mean it goes the same horizontal distance, the x-component of the velocity determines that. Also there is no velocity in the y-direction as the car is moving horizontally. What you...

I am about to read the book Classical Mechanics by Herbert Goldstein. The prerequisites that it says in the book are advanced calculus and vector analysis. Would that mean multivariable calculus? Also there are a lot of things about transformation matrices and tensors. Would I need to review...

No isn't the linear velocity of the wheel just the motion of the center of the wheel. All points on the rim of the wheel don't move linearly right? Am I wrong?

According to the observer effect, a particle changes when observed. Is it possible that how it changes is predetermined at its creation? Are there any papers that have explored this?

What is the "A" in the wave equation: Ae^{i(kx-wt)}? What does it mean in quantum mechanics? Is it just the amplitude?

I have attached the image as an attachment Homework Statement I am reading a classical mechanics textbook and I don't understand how they found that. r1' = -\frac{m_{2}}{m_{1}+m_{2}}r and r2' = \frac{m_{1}}{m_{1}+m_{2}}r r1' is the vector from the center of mass R to m1 and...

What is the potential energy of a pendulum at any point?