If the change in momentum is equal to 0 (Δmv=0), does that mean that the change in kinetic energy is also equal to 0 (Δ.5mv^2=0)? This is just a general question.-Yes, but the reverse is not necessari
A kid on a tricycle is being pushed by her father at a constant velocity.The father exerts a
constant force of 10.0 N at an angle of 30.0o below the horizontal. If the combined mass of the kid and th
A 0.12 kg block on a horizontal frictionless surface is attached to a spring whose force constant is 570 N/m. The block is pulled from its equilibrium position at x = 0m to a displacement x = +0.080m
In what order is the correct sequence?
1) Sodium Channels in a local region of the membrane open
2) Some Potassium channels remain open causing hyperpolarizing
3) Threshold stimulus is received
4) Wa
1. the crest of any wave can be replaced with a series of what?
a.equally spaced wave sources that are in step with each other
b. equally spaced wave sources that interfere with each other
c. unequall
list the following examples of electromagnetic radiation in order of decreasing frequency:
A. orange light
B. gamma rays
C. violet light
D. infrared
E. AM radio waves
F. air navigation waves
G green
Why is it that when you produce a mechanical (transverse) wave, on a string for example, the reflected wave has the same amplitude as the incident wave if its reflected from a fixed end?
The energy o
In the figure below, the scale on which the 59 kg physicist stands reads 220 N. How long will the cantaloupe take to reach the floor if the physicist drops it (from rest relative to himself) at a heig
Two particles with masses 2.5 kg and 5.8 kg are connected by a light rod of length 3.5 m. Find the moment of inertia of the system about an axis perpendicular to the rod and passing through:
a) the
The work function of a surface is 5.0 x 10 ^ -19 J. If light of wavelength of 300 nm is incident on the surface, what is the maximum kinestic energy of the photoelectrons ejected from the surface?-h .
A 603 kg satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earths mean radius.
(a) Find the satellites orbital speed.
_____m/s
(b) Find the period of its re
The problem states: A 75 kg box slides down a 25.0 degree ramp with an acceleration of 3.60 m/s^2. Find the coefficient of kinetic friction between the box and the ramp.
I have tried everything and c
What would out life be like if top speed of light thus anything was only 1000 miles per hour?
Some weird things would happen but I cant think hard enough to figure it out.
Thanks for your brain powe
Find the approximate temperature of a red star that emits light with a wavelength of maximum emission of 700 nm (deep red).-Apply Wiens law: λ = 3x10^7 /T
wavelength: λ in Angstrom units(1 A = 10^-10
Why is it so difficult to master, and why are they so complicated?
Should not equations like this be simple and elegant?
Its pretty ugly if you ask me!-They are incredibly elegant in modern vector n
