Hi,
As the previous poster said, consider the fact that the trig functions are periodic.
The cosine function can be called a "many-to-one" function.
So let's think about the function f(x) = cos(x).
Let me ask you, for what values of x does cos(x) = 1? If you can imagine the graph...
Could anyone recommend a piece of lab apparatus which will measure the volume of an irregular object? I cannot use displacement of water as the object will compress under pressure and I suspect submerging the object in water will give a different displacement from the actual volume at 1 atm...
If you know how much fuel is combusted, you can know how much energy is released. This energy, assuming 100% efficiency, will be all converted to heat energy. You can then find the temperature change of the air if you know the volume of air inside the chamber.Then use PV = nRT to solve for P and...
Homework Statement
Basically I was given a table displaying speed of a vehicle, thinking distance (distance it takes for driver to react) and braking distance. I am told to find an equation relating speed of vehicle and overall distance (overall distance = thinking distance + braking...
Prettysure denver is right and there are 2 doppler shifts (one raising the frequency and one lowering it)
Try to draw it out on paper. Bat moving to the right shifts the frequency up. however the insect moving away shifts the frequency down.
There are different types of collisions, and energy and momentum act in different ways in different situations.
Let us look at the perfectly elastic collision, in which (someone correct me if I'm wrong) both total energy and total momentum is conserved. If two bricks collide in space, for total...
My experimental setup is simply a 1/24 scale model of the Honda Integra (built by someone else from a kit) placed on an electronic balance in a wind tunnel about a foot wide and a foot high. I used a standing fan to generate the wind so I only achieved low speeds from 0-25 kmh, which I...
I like to think from 2 perspectives - differences in phase and differences in density.For a ball floating on water, there is a difference in density between the ball and the water - the ball is less dense, so it floats! If you use a metal ball bearing, which is denser than water, the metal ball...
Leftward torque (or some call it moment) = Rightward moment
for the beam to be balanced.To find torque, F = perpendicular distance * weight
Assuming the beam is uniform,
You know the torque on one side (the side that the weight of the beam is acting on), so use it to find the perpendicular...