I was just a little confused and rusty on the knowledge of this..-Physics IS the world, and the universe. Anything that exists or happens in the universe is because of physics.
No physics, no univer
Starting from rest, a 5.6-kg block slides 2.60 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is µk = 0.436.
(a) Determine the work done by the fo
(1) A car drives down a road in such a way that its velocity ( in m/s) at time t (seconds) is
v(t)=3t^(1/2)+4
Find the cars average velocity (in m/s) between t=2 and t=8
(2) A circular swimming pool
A spring with a spring constant of 500N lies on the bottom of a 30 degree ramp. A ball of mass 3kg is compressed on the spring a distance of .2m. Find the highest point the ball reaches when released.
And how does the thickness of a fluid compare to its viscosity? Give an example.-Not all the particles in a fluid flow (current) are moving with the same speed.Those particles next to a solid surface
Part (a):
What minimum path length difference is needed to introduce a phase shift of 170 in light of wavelength 568 nm?
Answer: 268.22 nm
Now I cant figure out part (b). :What phase shift will that
A stationary whistle emits a sound of 188 Hz. If a car hears the whistle with a frequency of 194 Hz, how fast was it moving (in m/s)? Use 340 m/s for the sound velocity.-For a sationary source like th
Here is a link to the problem with a picture. I think the answerer on cramster did it wrong.
http://www.cramster.com/answers-apr-11/physics/torque-masses-m1-45-kg-m2-70-kg-connected_1275174.aspx#post
At a rock concert the fans in the front row are bombarded with 112 dB of sound. How many rock bands playing simultaneously at this level would be required to reach or exceed the pain threshold (120 dB
My professor says that this statement is false. So we have to prove why this statement is false.
A spaceship moves away from you at 0.75c. If you shine a laser past the spaceship, the spaceship will o
A visitor to a lighthouse wishes to determine the height of the tower. She ties a spool of thread to a small rock to make a simple pendulum, which she hangs down the center of a spiral staircase of th
velocity of 2m/s to the left is 4m/s.
I sort of get it but I want to make sure I understand every step I do in these problems.
Thanks :)-Because velocity is a vector it has magnatude and direction.
okay Im a little confused. Newtons 3rd law says that every action has an opposite and equal reaction. So if a box is sliding on the ground(being slowed down by friction) what is the opposite and equal
A beam of light traveling in air is incident on a transparent plastic material at an angle of incidence of 52°. The angle of refraction is 24°. What is the index of refraction of the plastic?-µ = sin
A car traveling east at 44.8 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 25.0 m/s in 3.70 s.
A.What is the magnitude and direction of the cars acceleration
