## Mechanics

Parent Category: Physics
Mechanics is the branch of physics that deals with the interactions of objects and forces in the observable world. Questions asking about projectile motion, conservation of energy, and calculus based mechanics are perfect for this topic, but questions about repairs that a mechanic would do belong in our vehicles categories.

## Subcategories

54 km per second is equal to 120,794.56 mph
A: actually any active components will oscillate with positive feedback A transistor can be used as an amplifier along with an LC tank circuit to form an oscillator; it is an active device (as LIBURNO states) which will amplify the feedback signal coming out of the LC tank circuit. The tank circuit...
The red line goes down and the blue line just goes all the way up.Cool right?
It isn't an object which can be found of itself, but objectspossessing angular momentum are those which are turning.
As the material body travels at the speed of light its relativisticmass becomes infinite. Hence the kinetic energy too becomesinfinite which is not practically possible
Mechanical advantage has no unit, because you are dividing a forceby a force. It is simply a dimensionless number.
movement of fluid in chest tube R/T inspiration & expiration
velocity cause Velocity= wavelength X frequency
Scalar because you give only the distance, not direction as well.It would also be scalar if you had quoted only the speed (notvelocity), for the same reason. A vector has magnitude anddirection.
The term "simple" and "compound" machine refer to physical devicesthat transform work. The computer is an electronic device whosemain operation has no moving parts whatsoever. Any motion withininput and storage devices is controlling electrical components, notmechanical ones.
With poor language we cannot assess. Any way the objects speed goeson increasing
Data representation. Cumulative frequency is the sum of all previous frequencies.
A local oscillator can be a crystal oscillator.
The resistor allows a slow charge to enter the capacitor. When this charge reaches a certain point the circuit activates and forces the capacitor to discharge. Once discharged the circuit reverses itself and starts the charge over again. The larger the cap and/or resistor the lower the frequency...
The wavelength of light times the frequency of light is its speed, which is close to 2.9979*10 8 m/s in most mediums.
Every application is different, you will need to look up the torquevalues for your engine serial number
Simple harmonic motion is understood from an oscillating pendulum.It is also periodic. An example of periodic motion without simpleharmonic motion is the rotation of the blades of a fan.
All radio (and TV and GPS and cell-phones [all of which are really radios]) work by transmitting and/or receiving electromagnetic waves.
A simple pendulum has one piece that swings. A complex pendulum hasat least two swinging parts, attached end to end. A simple pendulumis extremely predictable, while a complex pendulum is virtuallyimpossible to accurately predict.
I have no video but electromagnetic wave may harm and may not It is divided to seven the radiowaves,microwave,infrared,visible light,ultraviolet light,X-rays,andlastly Gamma rays. The waves that is not harmful is from radio waveto visible light then the rest may harm
It is called buoyant force. It is calculated by determining the volume of water displaced by the object, which is the volume of the object under water.The weight of this quantity of water is the buoyant force. It can also be calculated by knowing the depth of the object in the water, the pressure...
The specific heat capacity of motor oil is 2 Kj/ Kg. That means 2kilojoules and kilograms which is how heat is measured.
A turbine or a windmill converts wind motion into energy. Note thatit actually has to intercept/stop the motion to do this. If youcould build a perfect windmill, the air would perfectly calm on theother side of that windmill.
v=fÎ» Visible light is an electromagnetic wave. All electromagnetic waves travel at 3.0x10 8 m s -1 in a vacuum. Since the question doesn't supply additional info I'm assuming the medium is a vacuum. Hence, v=3.0x10 8 m s -1 and Î»=486x10 -9 m. Therefore, f=v/Î» = 6.17x10 14 Hz
Simple example for integrating instrument is energy meter that is used in houses which indicates the summation of readings(units) consumed...
The rate constant is something that must be solved for in eachindividual equation. Without more information, it is impossible toanswer the question completely.
Maybe evaporation but I wouldn't use the oil in an engine anyway.
I posted this earlier. weather the van is in gear or out of gear, driving or braking, as soon as it pass 50 mph it starts to make clunking noises from under the engine. not particular to one particular place but mostly from under the passenger footwell, then under the engine itself and sometimes a...
Average acceleration during the time interval = (change on speed) / (time for the change) = (98 - 121) / (12) = -23/12 = negative (1 and 11/12) meters per second 2
27,404 feet per second = 18,684.5 mph Algebraic Steps / Dimensional Analysis . 27,404 ft/s . * . 3600 ft/hr 1 ft/s . * . 1 mi/hr 5280 ft/hr . = . 18,684.54545 mi/hr.
Mach 2.5 = about 1,853.9 mph
Sound wave travels from one part in to another part in air due tochange in density of molecules from one point to another point
The total of all electromagnetic waves is called theelectromagnetic spectrum. . The electromagnetic spectrum includes radio waves, microwaves,infrared radiation, visible light waves, ultraviolet radiation,x-rays, and gamma rays. Only visible light waves, which humans seeas the band of colors from...
Just short of 10 meters.....no matter what. Wells deeper than this MUST have the pump at the bottom of the hole. They don't depend on vacuum to lift the water.
No. Otherwise it is no standing wave.
Frequency of em radiation is inversely proportional to its wavelength.so, frequency increases with decrease in wavelength.
Assuming that "r" is the radius, that simply isn't sufficientinformation to calculate angular velocity.
The math that describes them, Fourier transforms allow one to add wave functions. Also thr fact that they are waves so wave adding together or "cancelling " each other out is possible, wave interference both constructive and destructive does occur.
In an elastic collision between two objects do both objects have the same kinetic energy after the collision as before? Let's do the problem and see The problem below will prove that in an elastic collision between two objects the objects do not have the same kinetic energy after the...
To convert from miles to kilometers, you multiply by 1.6. Samething, to convert from miles per hour to kilometers per hour.
They transport energy . They have amplitude . They have frequency . They can be measured i m not use to yor acount , so pls delete acount pls
30,000 feet per hour = 5.68 miles per hour.
A net force on a body can stop the motion of a body , can createthe motion of a body and can change the direction of motion of abody .
RC phase shift oscillators are used for musical instruments, oscillators, voice synthesis, and GPS units. They work at all audio frequencies.
A: Very easy to do just provide a positive feedback and/or a phase shift it will oscillate
1) Work input = Force * distance 2) Force = mass*acceleration 3) Acceleration = (Vf - Vi) Ã· time 4) Force = mass * [(Vf - Vi) Ã· time] 5) Distance = Average velocity * time 6) Average velocity = (Vf + Vi) Ã· 2 7) Distance = [(Vf + Vi) Ã· 2] * time Eq#4 * EQ #7 8) Work input =...
Momentum is the product of the mass and the velocity of an object. It's SI unit is kgms -1 . Correct, but perhaps more easily interpreted as kgm/s.
The slope of a time-distance chart would be a constant. The slope of a time-velocity chart would be 0.
The dimension of angular velocity is reciprocal time . . . 1 / time or T -1 . It'll be stated as "some angle" per "unit of time", like "45 revolutions per minute", and angles are dimensionless.
It will become longer, and it will carry less energy, its alsolikely, that if the change or loss in frequency is enough, theradiation will become a different type of electromagnetic radiationin the spectrum like gamma to x-rays or visible light to infraredand so on.
70 mph = 112.65 kph
Sound waves are vibrations through a medium, such as air or water. The energy travels from the vibrating source and vibrates molecules in the medium, which push others sending a wave through the medium. Without a medium, there's nothing to vibrate and sound cannot travel.
wavelength. The larger the frequency, the smaller the wavelength.
Because it contains the mechanical components defined as wheels and axles.
Well you can always work out the normal force... if the object ison a horizontal surface... The normal force is equal to the mass ofthe object Ã gravity (9.81). If the object is on an incline, youhave to get the component of weight which is equivalent to theNormal, in most cases it is Normal =...
no because to get a torque you must multiply lever arm by force. If lever is zero, then torque is zero
When speed decreases, kinetic energy must alslo decrease.
Frequency is inversely proportional to wavelength (higher frequency means a shorter wavelength). Frequency is directly proportional to the energy of the wave (higher frequencies correspond to higher energies).
In an isolated system the total momentum of a system remainsconserved. For example If you fire a bullet from Gun , bullet goforward with some linear momentum and in order to conserve thelinear momentum the gun recoils
A toaster is just a box with resistance coils in it. In order forthe coils to heat up and burn bread, current electricity must pass through them forsome time.
V=f *lambda where v = wave speed, f=frequency and lambda=wavelength. . Frequency increase as the energy of a wave increases becauseE=hf where h is a constant so E/h=f. if E increase f has toincrease. . Wavelength decreases because if the frequency increases thewavelength would also have to decrease...
Relationship between work and kinetic energy. Work is defined as the result of a force moving an object a distance and is stated by the equation W=Fd. But the result of the force being applied on the object also means that the object is moving with some given velocity, according to the equation for...
Yes the kinetic energy of solid increases resulting in increase ofvibration of atoms in their mean positions
Longitudinal waves require a medium to propogate . Example aresound waves
I am assuming the initial speed is 6.2 m/s Let upward motion be positive! Gravity decreases the speed by 9.8 m/s each second Acceleration due to gravity = -9.8 m/s each second (negative because gravity accelerates objects downward) Find time to reach the top of the path! Final velocity at...
Always contrary to the motion.
Yes, Sliding friction opposes the movement of the book, slowing it down.
55 km/h = 34.2 mph
Though it is not possible to get a mathematically perfect square wave from a sine wave, it is possible to get a reasonably close square wave from a sine wave. A clipper circuit is one which clips off the top of a sine wave thus giving it a flat top. Clipper circuits find their applications in...
Slope of speed vs time graph = acceleration.
depends on the speeds and weights of the involved vehicles.
It occurs simultaneously with the action force.
An increase in atmospheric __o[ ___ leads to an increase in the greenhouse effect
mgh = 10 x 10 x 10 = 1000 J ( Assume g value as 10 m/s 2
Kinetic energy is energy from motion, so if an apple is moving, then it has kinetic energy. If not, then it does not.
A mechanical wave is a disturbance (an oscillation) that movesthrough a medium. The source transfers mechanical energy into themedium itself, and the medium propagates the energy of the wave.Examples are sound and an earthquake, and a tsunami. == A mechanical wave is a disturbance that travels...
Riding a bike down a hill. You gain potential energy on the way up, but on the way down you lose that potential energy and gain an equal amount of kinetic energy.
About 5 minutes 21 seconds at that rate of travel.
Yes, The speed of sound in dry air is approximated by the equation: v = (331 + 0.6*T) m/s where T = temperature in degrees Celsius
Is this a question? or a statement that you are unsure of? Well anyways, this would be correct if acceleration was a constant but if acceleration is not a constant, the (not-constant) acceleration would change the rate of velocity and thus that statement/question would be false.
Correct and easier way: Kinetic friction is just a part of magnitude of forces affecting an object, so it can be multiplied by g(9.81) to get the total acceleration essentially. Coefficient(.3)=F(friction)/F(normal) So multiply .3 by g(9.81) to get 2.943 -2.943 is the acceleration of the object,...
Average acceleration during a period of time is (change in speed) divided by (time for the change). A = (98 - 121) / (12) = 23/12 = -1.9167 meters/sec 2 average during the 12 seconds.
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