Physics, 24.08.2020 09:01 isalybeaudion2205
based on the article will the real atomic model please stand up why did JJ Thomson experiment with cathode ray tubes
Answer from: Quest
d₁ = displacement of tern from arctic to antarctic = 11000 miles
d₂ = displacement of tern from antarctic to arctic = - 11000 miles
d = total displacement for the journey
total displacement for the journey is given as
d = d₁ + d₂
d = 11000 + (-11000)
d = 0 miles
t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days
t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days
t = total time of travel
total time of travel is given as
t = t₁ + t₂
t = 90 + 90
t = 180 days
average velocity is given as
average velocity = total displacement/ total time
v = d/t
v = 0/180
v = 0 miles/day
Answer from: Quest
e/c, where e is its total energy
Answer from: Quest
Answer (d) the universe had cooled enough for atoms to combine, protons and neutrons were too far apart to form nuclei;
Answer from: Quest
1) what is light? light is an electromagnetic wave visible to the human eye. 2) what is a reflection? the rebounding of a light ray when it hits a mirror.3) what is the incident ray? contacts the surface of an object.4) what is the reflected ray? bounces off a reflective surface.5) what is the normal ray? perpendicular to the surface of a mirror.6) what is the angle of incidence? an angle formed by the incident ray and the normal.7) what is the angle of reflection? an angle formed by the reflected ray and the normal.8) what is refraction? (bending.)9) what is a converging lens? bring together light rays that pass through.10) what is a diverging lens? spreads out light passing through.11) focal point? the real point where the refracted rays meet when the incident rays run parallel.
Physics, 22.06.2019 00:20, pooperjooper
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
Physics, 22.06.2019 20:00, luceridiaaz
What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?
Answers: 1
Physics, 23.06.2019 00:30, GachaSkylarUwU
Part of a control linkage for an airplane consists of a rigid member cb and a flexible cable ab. if a force is applied to the end b of the member and causes it to rotate by θ = 0.5°, determine the normal strain in the cable. originally the cable is unstretched.
Answers: 2
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