UWORLD_Physics

Unit conversion method g.cm/s² to kg/ms²

Mechanical Advantage

Relationship between Torque and angle

T= Fdsinx

Wave speed is determined by the physical properties of the medium like temperature, elasticity and density

Fill tube with a different gas

Equation to get the ratio of intensity of two sounds

β1 - β2 = 10 * log10(I1 / I2)

what happens to sound waves when it passes from one medium to another

Wave frequency unchanged, speed of sound or wave is slowest in gas and fastest in solid. So, velocity increases

Sound wave is longitudinal, and its energy is related to intensity. Portion of wave is reflected and hence loses energy/ decreases intensity.

Closed tube resonance calculation

λn=2L/n, n is resonance number, L is length of tube

Bernoulli’s equation? How does the fluid height hhh in a Pitot tube depend on air velocity?

P + 1/2 ρ v^2 + ρ g h = constant

Opening A (front-facing): air stops → vA=0→ stagnation pressure

Opening B (side-facing): air flows → velocity vB

Bernoulli (horizontal flow):

change in P= P + 1/2 ρ v^2

Pressure difference:

Change in P= 1/2 ρ v^2

Manometer relation:

ΔP∝h​​

Diverging mirrors always virtual images

Laws of reflection

speed, frequency, and wavelength stays say, intensity of wave after reflection can decrease

Equation connecting volumetric flow rate, velocity and radius?

Connection between diameter, speed, volumetric flow rate and pressure

Bernoulli obvo!

Also remember if A decreases, velocity increases to keep volumetric flow rate constant, now when velocity increases, pressure decreases again to keep flow rate constant

Question says they had to reduce thickness of the periphery. So, earlier it was thicker which means more refraction hence C

Higher frequency> higher refractive index > more refraction

n2 = lens refractive index, n1= air

Know lens strength get added and strength (s=1/f)

Energy proportional to square of amplitude

Increasing the rate of positron emission increases the number of gamma rays produced per unit time.

Intensity=power/area, intensity is proportional to individual energy and the number of particles emitted per unit time.

W balances buoyant force, displacement of amount of water has nothing to do with it

Incident angle of light exceeds critical angle most likely so internal reflection happens and we cant see boat on top.

Idk man read till it makes sense

Use v=u+at

Electron is also lighter than proton, so it curves more.

Gotta multiply individually.

25% increase means multiple by 1.25

Cardiac Output formula

CO = SV * HR

SV = Stroke Volume

HR= Heart Rate

SV= EDV - ESV (volume before and after contraction)

Speed of wave depends on temperature of the medium. Sound is faster in warmer air.

Energy is related to intensity and loudness, dissipation won’t affect frequency

Capacitance increases by 250 % so 2.5 percent

C= Q/V

C is also proportional to A/d

IDK what happened to u girl

f is proportional to 1/ wavelength.

f is proportional to 1/4L first then 1/2L so it doubles

I just did some division with densities

Oxidizing and Reducing agent using Ecell.

Resonance increases the average charge separated.

C-H obviously has an induced dipole, why do you get it wrong all the time

Both acid and ester can be reduced. They both have acid which can reduced to alcohol