Mechanics

For working professionals who need to obtain their master's of public health quickly, be aware that many universities are now beginning to offer one year, accelerated MPH programs. These new master's in public health programs are designed for highly motivated health professionals who want to enhance their career prospects quickly. Typically, the curriculum is similar to a regular two-year program, but simply at a faster pace and includes summers. Hope this helps.

Anywhere from 0 to 205mph.

The average 600 will do 95 in good conditions.

No, The sound waves itself travels at the slowest speed of its medium regardless of rarefraction or compression, which effects the frequency of the sound wave (how many peaks pass through in 1 second). So a 500hz tonal would pass through at the same time as a 50hz tonal, but the 50hz would have much less energy passing by per second than the 500hz tonal.

As an object falls towards the earth, it accelerates due to the force of gravity acting on it's mass. As velocity increases, air resistance increases. This is in the opposite direction to the force of gravity on the object. Therefore the resultant force on the object is decreased, and the rate of acceleration is reduced. Eventually, the force due to the air resistance is equal in magnitude to the weight and the object has no resultant force acting. At this point the object will be travelling at a constant velocity, commonly referred to as Terminal Velocity.

Viscosity is the resistance of flow and surface tension is the lateral force of the bonds between the molecules.

Of course, viscosity is resistance of flow and surface tension of lateral force but viscosity is s display of frictional force during laminar flow caused due to intermolecular forces. The surface tension is a function of cohesive forces generated by intermolecular forces among similar molecules. Very rightly since both the parameters are dynamic in natures and hence a 3rd parameter noted as friccohesity is most advanced version of the contribution of the intermolecular forces operational in liquid dynamic behavior. The friccohesity along with surface tension, viscosity, wetting coefficient, interfacial tension are measured with borosil mansingh survismeter.

The cue ball will have a final velocity after the impulse is applied. Since no external forces act on it, its momentum will be conserved. You can calculate the final velocity using the impulse-momentum theorem: impulse = change in momentum = mass x (final velocity - initial velocity).

The speed that a bullet travels depends on the weight of the bullet. For example a bullet for a Magnum .357 made by Federal's American Eagle with a 158gr JSP load can travel at a speed of 1351 km/h.

I have no idea. aksdjnfsa

wow omg my goodness

Modulus division gives you the remainder when dividing. It is useful in computer programming. Let's say you are making a minesweeper clone. You have a 10x10 grid and each location is either a bomb or needs to know how many bombs are touching it. Now, locations in the middle have 8 neighbors to check, whereas locations on an edge have less. If you assign each location an index number from left to right and top to bottom (starting at 0 up to 99) such as:

0 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19

20 21 22 23 24 25 26 27 28 29

30 31 32 33 34 35 36 37 38 39

40 41 42 43 44 45 46 47 48 49

50 51 52 53 54 55 56 57 58 59

60 61 62 63 64 65 66 67 68 69

70 71 72 73 74 75 76 77 78 79

80 81 82 83 84 85 86 87 88 89

90 91 92 93 94 95 96 97 98 99

then we can say x = index modulus 10;

if x equals 0 then we know we are looking at the leftmost column and should not try to check any neighbors to the left (as they don't exist and attempting to check them will cause errors)

otherwise if x equals 9 we know we are in the rightmost column and should not check on the right

otherwise if x is greater than 0 and less than 9 then we are somewhere in the middle

index modulus 10:

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

0 1 2 3 4 5 6 7 8 9

Not the weight explicitly, but the ballistic coefficient, which is m/CdA. Cd is the drag coefficient and A is the area. Which area depends on how you defined Cd. The downward force on an object is mg. The resisting force is CdA (1/2 rho V*V). Rho is the density of the fluid. At the terminal velocity, the two forces are equal, so Vterminal = sqrt(2mg/rho Cd A) or, if you separate the environment from the falling object Vterminal = sqrt (2*g/rho) sqrt(m/CdA) So as long as m/CdA stays the same, the terminal velocity should stay the same. Since mass usually varies with the cube of the linear dimension, while the area varies with the squre, larger things tend to have higher terminal velocities because m/A increases with the size of the object. Mice and elephants have similar densities and drag coefficients, but the m/A of the elephant is much larger just because it's bigger, so an elephant dropped off the Leaning Tower of Pisa will fall faster than a similarly-mistreated mouse. So Galileo was wrong while being right.

There are two basic types of KERS systems being developed for F1 - mechanical and electrical: both store energy that would otherwise be lost when braking, and allow that energy to be re-used when accelerating. In the mechanical systems, the energy is stored in a flywheel. When the driver brakes, the flywheel is driven from the car's transmission system to spin it up: when the driver needs the stored energy to add to the engine output under acceleration, the flywheel is re-connected to the transmission system and drives it. The direction of transfer of power (i.e. transmission to flywheel or flywheel to transmission) depends on the gearbox that lies between the two (a special continuously-variable-transmission gearbox is usually used). In the electrical version, under braking the transmission drives a generator that charges a battery: under acceleration, the battery drives an electric motor that drives the transmission. (The generator and motor can be the same device). More details can be seen on http://www.f1fanatic.co.uk/2007/09/26/kers-technology-revealed/ (mechanical version) and http://www.f1network.net/main/s491/st130882.htm (electrical version).

Accelerated motion is when an object's speed changes as it moves, either increasing or decreasing. It can be caused by changes in direction, speed, or both, and is characterized by a non-constant velocity.

Velocity refers to both speed and direction. A vector refers to both magnitude (the speed in this case) and a direction.

Speed without reference to a direction is a scalar, a magnitude without direction.

Photocell consists of two special pieces of silicon joined together. Pure silicon is neaturally charged but if small amount of an impurity such as phosphurus is added, ther are more free electron which make this a better conductor than pure silicon. This is known as n-type(negative) silicon. If a diffrent impurity, such as boron, is added there is an absence of free elactron. The absence of an elactron is known as a hole and the silicon is knpwn as p-type silicon. When these two types of silicon are placed together it is called a p-n junction. An electric field is created between the two layers. Sunlight is made up of a tiny packets of energy called photons. When photons are absorbed the energy causes electron to become free. They move to the negetive layer and leave the junction to flow in an external curcuit.

Increasing mass increases kinetic energy because kinetic energy is directly proportional to mass. This means that as mass increases, the kinetic energy of an object will also increase, assuming the velocity remains constant.

To change the phase of a system from liquid to gas, the total system energy must be increased (heat added) to the point where every atom or molecule has sufficient energy to escape the liquid system.

As in automobile tires, the purpose of the tread is to increase traction (friction). They increase the surface area of shoe-to-ground contact.. Further, the tread forces softer ground to mold to its shape, allowing more lateral force to be applied to each step. All this increases the traction between your shoes and the ground and allows better control of movement (allows more applied energy to each step with less slippage).

The formula for angular momentum is L = r x p, where L is the angular momentum, r is the distance vector from the axis of rotation to the point of interest, and p is the linear momentum. This formula describes the rotational motion of an object around a fixed axis.

The process that involves the transformation of liquid water into gaseous water vapor in the water cycle is called evaporation. This occurs when heat energy from the sun causes liquid water on the Earth's surface to change into water vapor and rise into the atmosphere.

Hydrogen bonds cause water to expand when it freezes. As water cools and freezes, the hydrogen bonds between water molecules form a crystalline structure with a more open arrangement than in its liquid state, causing it to expand and become less dense.

Describing motion using words instead of numbers is called qualitative kinematics. This approach focuses on the characteristics of motion such as speed, direction, and changes in motion without quantifying them numerically.

Phyz (Dax Phyz), is a public domain, 2D computer graphics physics engine with built-in editor and DirectX graphics and sound. In contrast to most other real-time physics engines, it is vertex based and stochastic. It's integrator is based on a SIMD-enabled assembly version of the Mersenne Twister random number generator, instead of traditional LCP or iterative methods, allowing simulation of large numbers of micro objects with Brownian motion and macro effects such as object resonance and deformation.