Could you put the helium nucleus (also known as an "alpha particle") somewhere on a line between the proton and electron where it wouldn't feel a net force? Why or why not?

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 1.2 m/s² for 4.4 seconds. It then continues at a constant speed for 11.8 seconds, before getting tired and slowing down with constant acceleration coming to rest 81 meters from where it started. The tortoise accelerates uniformly for the entire distance, finally catching the hare just as the hare comes to a stop.

1)

How fast is the hare going 3.1 seconds after it starts?   See solution

2)

How fast is the hare going 12.5 seconds after it starts?
See solution

3)

How far does the hare travel before it begins to slow down?

m

4)

What is the acceleration of the hare once it begins to slow down?

m/s²

5)

What is the total time the hare is moving?

s

6)

What is the acceleration of the tortoise?

m/s²

In a student experiment, a constant-volume gas thermometer is calibrated in dry ice (−78.5°C) and in boiling ethyl alcohol (78°C). The separate pressures are 0.896 atm and 1.629 atm. Hint: Use the linear relationship P = A + BT, where A and B are constants.

(a) What value of absolute zero does the calibration yield?

(b) What pressure would be found at the freezing point of water?

(c) What pressure would be found at the boiling point of water?

Please answer the following questions clearly.

1) If two quantum states differ only by a phase factor, are they considered the same ? if so in what sense ?

2) Explain entaglement quickly?

3) why is the composite of quantum states is given by a tensor product whereas the composite of a classical states is given by a Cartesian product?

Two spheres have the same diameter and mass, but one is solid and the other one is hollow. Assuming homogeneous densities and putting the origin at the center, calculate the inertia tensor of each sphere.

What are the steps that you need to take when solving a problem using Ampere's Law?

(a) (i) What particles inside of an atom make the biggest contribution to its magnetic moment? (ii) What are the two types of angular momentum that are involved?

(b) You are given a “term” 3P. (i) What is it describing? (ii) What values are associated with it? (iii) Is it a type of coupling? If so what kind?

(c) ( What if you instead say 3P2? (i) What is this called? (ii) What is the meaning of the extra label?

(d) ( These correspond to electron configurations with 2 electrons in three p suborbital. (The usual notation with 2 arrows.) (i) Fill in the arrows (electrons) to give one configuration that is part of 3P term. (ii) Give a configuration that violates Pauli exclusion.

1. What ROTATIONAL concepts are the HARDEST for you to understand and WHY? You can make an answer from your own experience, 150+ words needed

In the simulation, for the Rutherford model, which of the following possible observations is correct when you use greater energies?

The incoming particles can reach closer to the nuclei.

Their trajectories bend more.   

The particles lose more energy before exiting the target area.

The particles spread over a larger area.

The particles are able to break apart some of the target nuclei.

The particles excite higher electronic energy states.

show that the relaxation time for a heavily damped rlc circuit is RC

A target in a shooting gallery consists of a vertical square wooden board, 0.230 m on a side and with mass 0.700 kg , that pivots on a horizontal axis along its top edge. The board is struck face-on at its center by a bullet with mass 1.60 g that is traveling at 355 m/s and that remains embedded in the board.

A. What is the angular speed of the board just after the bullet's impact?

B. What maximum height above the equilibrium position does the center of the board reach before starting to swing down again?

C. What minimum bullet speed would be required for the board to swing all the way over after impact?

Assume that a star’s luminosity is given by L ∝ M^3.5 for all masses. After a burst of star formation, does most of the stellar luminosity come from low-mass stars or high-mass stars? Justify your answer quantitatively.

What is the average stellar luminosity?

What is the mass of a star with the average luminosity?

Taking a gas to be ideal and confined to a rigid metal box, find an expression for how quickly the mean free path of said gas changes if the temperature is dropping cubically with time (​T​=​T​0- At^3) If the initial pressure of the gas is 105 Pa, the intermolecular radius is 2 Ångström, and the initial temperature is 325 K and drops 1 K in the first second, what is the rate of change of the mean free path with respect to time after 6 seconds?

Laboratory of Physics - Study of Movement (Pleaseee I need this laboratorio answers)

PROCEDURE:
PART A.
Follow the instructions below:

1 Develop a procedure to determine how fast you walk. In that procedure, you should clearly state what materials you need, what data you need to collect, and any instruments you need for data collection.

2. Design a table to collect the data from your experiment.

3 If you were to submit a report on the experiment you designed, what parts would you include in that report?

4. In the experiment you designed, what are the two variables you need to relate to solve the problem at hand, what is the independent variable, and what is the dependent variable in the experiment?

5.Design a second procedure to solve the same problem. Invert the two variables, that is, the independent variable previously will now be the dependent variable and the dependent variable will be the independent variable.

Post a two paragraph summary about an object or a system involving the movement of a fluid (gas, liquid or plasma). Please explain this