Determine the force (in the lab frame) between two charges moving with the same velocity V. What is the ratio of transverse-to-longitudinal force? Explain what happens to this ratio when the two charges lie on a line parallel to V or perpendicular to V?

A soap film (n = 1.33) is formed in a loop of wire that is mounted vertically is not exactly uniform in thickness because of its weight, but wedge-shaped in cross section. When the film is illuminated with violet light of wavelength 405 nm, one sees that a distance of 2.20 cm separates two bright fringes that are 4 orders apart. By how much does the film differ in thickness over this distance?

For astronomy class, please answer this question clearly, thank you .

Titan’s atmosphere contains a large amount of photosensitive methane. We know because of basic physics and chemistry that there must be a source of methane on Titan that replenishes the atmospheric methane.

a) Describe what astronomers thought might be occurring on Titan before the Cassini/Huygens mission.

b) Describe the findings of the Cassini/Huygens mission that either supported or disproved the original hypotheses.

The potential energy of a magnetic moment in an external magnetic field is U = - ??B. U is smallest when B is parallel to ? and largest when it is antiparallel. Since the magnetic moment of the electron is directed opposite to its spin (because it has a negative charge), the electron’s energy is highest when the spin is parallel to B. The two possible energy states for the electron are the spin up state (m_s = 1212) and the spin down state (m_s = - 1212). Calculate the energy difference ?E (in eV) between these states if the electron is placed in a magnetic field of B = 1.1 T. Assume that n = 10 and l = 0 for the electron.

If these electrons are bombarded with photons that have an energy equal to this energy difference ?E, then the electrons can be excited from the spin down state to the spin up state. This is referred to as a “spin flip” transition and the technique is called Electron Spin Resonance (ESR). Find the wavelength of the photons (in meters) that are needed to excite such spin flip transitions.

What type of electromagnetic wave has this wavelength?

Simple harmonic motion:

A ball dropped from a height of 4.00m makes an elastic collision with the ground in a vacuum chamber. a) What is the difference between the kinetic energy of the ball immediately before the collision and the kinetic energy of the ball immediately after the collision? b) Is the kinetic energy of the ball conserved in its subsequent motion after the collision? c) What is the difference between the momentum of the ball immediately before the collision and the momentum of the ball immediately after the collision? d) Is the total momentum of the system conserved, and if so, what other parts of the system must be included other than the ball? e) Identify an equilibrium point for the entire system. Explain why the motion around this equilibrium point is periodic and determine the period of the motion. f) Is the motion simple harmonic motion? Explain.

Having problem solving this..

Derive the Red Shift in the F.L.R.W. metric and obtain Hubble' s law.

You baked two cakes: one in a light aluminum pan and one in a heavy pyrex pan. Please Match each of the four with either Pyrex or Aluminum as the answer

1. The pan that needs to give up the most heat energy to cool down to room temperature.

2. The pan that gives up the heat energy the fastest

3. The pan most likely to burn your fingers if you try to move it too soon.

4. The pan in which the bottom of the cake is most likely to brown (same temperature oven, same time in oven.)

ANSWER OPTIONS

A .pyrex

B. aluminum

A plane parallel-plate capacitor consists of two identical circular metal plates, each of radius 2.50 cm. the plates separated by 1.00 micrometer. The
charge on the capacitor is 3.50 nC. Values of standard constant can be found in your notes or the textbook.

For these questions, enter only the numerical values. Do not enter the units, which are already given after the blank. Note that the data is given to 3
significant figures. You MUST enter your answers also to 3 significant figures. If you have more decimal places than allowed with a decimal number, use
the scientific notation in the form, eg: x.yzE(-12), or x.yzE(+6). The exponent MUST be a capital E.

Draw a diagram and for each part, show your work and your final answers on your worksheet, which you will submit in Quiz2b.

Find the capacitance: F.

Find the potential difference between the plates:

Find the magnitude of the electric field between the plates:
V/m. Show the diretion of the electric field in the sheet that you will

submit. ^L

Find the total electric potential energy stored in the capacitor:

Find the energy density of the electric field in the capacitor:

Q1

A potential difference of 13 V is found to produce a current of 0.45 A in a 3.1 m length of wire with a uniform radius of 0.36 cm. Find the following values for the wire: (a) the resistance (b) the resistivity

Hello
this question is for my physics homework
"display knowledge of static and kinetic coefficients of friction, and calculate one of them to solve a problem"

Please answer it fast

thank you

An 15.0-kg package in a mail-sorting room slides 4.00 mm down a chute that is inclined at 59.0 ∘∘ below the horizontal. The coefficient of kinetic friction between the package and the chute's surface is 0.90.

1.Calculate the work done on the package by gravity.

Express your answer with the appropriate units.

2.Calculate the work done on the package by the normal force.

Express your answer with the appropriate units.

3.What is the net work done on the package?

Express your answer with the appropriate units.

Alex is riding in a car that has LEDs at each end. The car passes Jordan, who is standing on the ground 25 m from the car's path, with velocity 0.8c. Flashes from the two LEDs reach Jordan simultaneously, and when he observes them, he observes one to be 3.75 m to his left, and the other to be 3.75 m to his right. According to Alex, how far apart are the LEDs, and what was the delay between their flashes?

4. By what factor does tripling the radius of a circle
increase (a) the circumference of the circle? (b) the area
of the circle?
5. What are some of the advantages of scientific notation?
6. After which numeral is the decimal point usually placed
in scientific notation? What determines the number of
numerical digits written in scientific notation?

There are three possibilities for the shape/curvature of the universe: positive curvature (closed), negative curvature (open), and flat curvature. These all imply different things about the ultimate fate of the expanding universe. What kinds of observable tests could cosmologists use to distinguish one curvature from the next? Please write a detailed paragraph explaining what kinds of theory/observations cosmologists would have to make to determine that the universe has negative curvature (open)?