A baseball rolls off a .70m high desk and strikes the floor .25 m away from the base of the desk. How fast was the ball rolling?
I got an answer of .378s then my teacher told me to plug it into the v
The sun emits 3x10^32J of energy every day (24 hour period). Assume it emits only yellow light (wavelength of 6X10^-7m)
A: Based on this wavelength, what is the frequency?
My answer: : (3x10^8 m/s)
Gee this question has never been asked here before.how original.
You cant travel at light speed so my vision is that you would see a myriad of 20 year old nubile nudes.If you ask a impossible question
What is the frequency and energy of photons emitted by excited mercury atoms with a wavelength of 6900 angstones? (1 angstone= 1 times 10^-8cm)-frequency * wavelngth = cspeed of light
freq = c / (69
As a result of friction, the angular speed of a
wheel c hanges with time according to
dθ / dt = ω(initial)* e^(−a t)
,
where ω(initial) and a are constants. The angular
speed changes from an initial a
An astronaut drops a feather from 2.3 m above the surface of the moon.If the acceleration of gravity on the moon is 1.64 m/s2, how long does it take the feather to reach the surface?
The tallest volc
I guess just colors. You know when you look out a car when its running 70 miles per hour? Then you look on the ground? You just see the colors of whatever youre looking at.
Am I off the question?
@
If a rock is tied to a string and swung vertically, why is the tension greater when the rock is at the bottom? Would the centripetal force be greater at this point?-when the rock is at the bottom
T =
How far up the incline will it go?---> i got 13 m and it was correct
How long will it be on the incline before it arrives back at the bottom?--> I got 4.9 but i came as wrong, please help thx-I think
no.. there is no such thing as true in science-Kind of. . .
You see, a lot of things that work with bigger objects like you or me or any molecule in general dont work on a subatomic level.
So the law
1. A 2.50 kg textbook is being held against a wall with a horizontal push (see figure
below). The textbook is not moving. (a) Draw a free-body diagram indicating the four
forces acting on the textbook
I have to do awrite up on Johannes Stark for physics and cant find very much information of the doppler effect in canal rays (part of what he won his nobel prize for).
Could anyone give an explanatio
please give explanation
thank u-kinetic energy=1/2mv^2
u increase system momentum by increasing velocity{u do that by doing work on it}so assuming no mass change
to increase momentum by 10%, u increas
its for my science project...so complicated...im just a poor little 7th grader... T_T-im pretty sure not
i mean you can have the chemical energy you get from your food and have that transformed into t
