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Kinematics

Kinematics is the study of how a body moves. This includes linear motion, angular motion, and rotational motion.

3,459 Questions

What is the coefficient of friction in a 6 inch round duct with a velocity of 200cfm?

The coefficient of friction for air flow in a round duct is typically around 0.02. This coefficient may vary depending on factors such as surface roughness and airflow conditions.

How fast does a holly grow?

Holly trees typically grow at a slow to moderate rate, averaging about 12-24 inches of growth per year depending on the variety and growing conditions. It can take several years for a holly tree to reach its full mature height.

The increase of velocity over a period of time is?

Acceleration is the rate of change of velocity over time. So, if velocity is increasing over a period of time, there is acceleration present.

In mph how fast do you have to avg to go 54 km in 66min and 35 secs?

30.36mph d = 54km/1.604= 33.6658 miles t = (66min 35sec)/60 min = 1.109 hr s= d/t = 30.36mph

What two factors determine the potential energy of an elevated object?

Potential energy can be descirbed in many forms: gravitational potential, electrical potential and so forth.

For gravitational potential energy, the formula is E=mgh, where E is the gravitational potential energy, m is the mass of the object , g is the strength of the prevailent gravitational field and h is the height above that field. In this instance, the factors determing the potential energy are threefold; the mass, the gravitational field strength and the height.

For electrical potential, the factors vary depending on what electrical field, componant or senario you are dealing with. In essence, an object has electrical potential energy when it has become charged (such as an Ion), or it is feeling the effects of conflicting magnetic feilds and motion (as in electro-magnetic induction).

How do you increase speed of Geo Tracker?

Answer

Hi, Is what you are asking how would you be able to increase the top speed your Tracker can achieve? If this is what you are looking for then the answer is that you are limited by the displacement of your engine and all the elements in the driveline. Your question though is too vague to really give a real answer. Please re-ask your question as to just what you are trying to achieve. Of course a comical answer would be to just step on the gas pedal, but then I know that is not what you want to know but it does add some levity to a day. I hope to see you return with a clarified question. Steve H.


do you want to go faster , or just accelerate faster.

2 very diff things.

  • to increase speed,?
  • go down hill all times.
  • pump up tires.
  • bigger motor
  • turbo motor.
  • NOS
  • taller tires will make it go faster but will take it longer to get there.
  • tune up the motor.
  • buy a suzuki sport (1.8L) or 2.0L Grand vitara.
  • how is that?

If you were able to harness raw atomic energy through a special engine and aim nothing but the energy at the ground would it be able to cause an object to lift or to hover?

An incredible amount of electromagnetic energy is released by atomic reactions but it does not provide any thrust. It is more effective to capture the energy that is released in water and use it to produce steam and drive turbines.

Can Timing cause poor Acceleration?

Yes, timing issues can lead to poor acceleration in a vehicle. If the spark plugs are not firing in the proper sequence or at the right time, this can result in misfiring cylinders and a decrease in engine power, which can cause slow acceleration. It's important to have the timing system inspected and adjusted if necessary to ensure optimal engine performance.

Is it possible to run round an oval running track at constant velocity?

No, it is not. At a constant speed, yes. But velocity has a direction component, and by running on (following) a curve, a change of direction (and, therefore, velocity) will have to be made. Again, note that speed can stay the same, but velocity has a direction vector associated with it that cannot be ignored.

What is the formula for calculating force?

The formula for calculating force is: force = mass x acceleration. This equation comes from Newton's second law of motion, which states that force is directly proportional to the mass of an object and the acceleration applied to it.

As mass decreases does kinetic energy increase?

That depends on what is happening to the speed at the same time, since

kinetic energy depends on both mass and speed.

If the speed doesn't change, then less mass implies less kinetic energy. You

might suspect that it works this way. If it worked the other way around, then

you'd rather be hit by a truck than be hit by a speeding speck of dust.

What is u velocity when v velocity is acceleration?

'v' generally refers to final velocity 'u' generally refers to initial velocity (because not everything starts from a motionless state, where 'u' would equal zero) It is better to annotate initial velocity as v0 (v-sub-zero or simply v-zero).

What are five energy-rich and five energy-poor substances?

five energy-rich substances:-Petroleum

-Coal

-Natural gas

-Gasoline

-Kerozene

five energy-poor substances:

-Carbone dioxide

-Ammoniac

-Cyanides

-Nitrogen oxide

-nitric acid

What causes jerky acceleration in 98 3800?

Several possibilities: Engine issues -Clogged fuel filter, Crank position sensor or cam position sensor going out intermittently (should throw a code), ignition coil breaking down(unlikely - would usually cause stumbling all the time), bad gas or water in the gas(unlikely),oxygen sensor (would cause one or two jerks during a typical acceleration, should throw a code). If it's the transmission, it may be "slipping" or have a clogged filter or valve body causing hard shifts.

What is law of dry friction?

The generalized answer is: Friction is equal to the forces acting upon an object.

I know only 2 laws of friction.....The first states that friction between two surfaces is proportional to the force pressing one another am assuming its normal force or the perpendicular force.

The other states friction is independent of the contact area. That is, the friction is the same whether the brick is on its large face, the smaller side or the small end. Hope this is accurate.

  1. When an object is moving, the friction is proportional and perpendicular to the normal force (N)
  2. Friction is independent of the area of contact so long as there is an area of contact.
  3. The coefficient of static friction is slightly greater than the coefficient of kinetic friction.
  4. Within rather large limits, kinetic friction is independent of velocity.
  5. Friction depends upon the nature of the surfaces in contact.

What are some Examples of infinite power?

There are no examples of infinite power.

Power cannot increase to infinite values.

Infinite power would be the ability to do anything that is conceivable. God does not actually have infinite power at least according to the christian fathers.

St Thomas Aquinas argued that God's power was not infinite but constrained by logic. That is that God cannot do what is conceivable but logically impossible. So for example God cannot make a square circle (a circle with 4 sides) or create a weight that He himself couldn't lift (as God is omnipotent) because both these things are logically impossible

Does an object dropped from twice as high take twice the time to fall?

No. Objects falling on Earth in a vacuum fall at an increasing speed of 32 feet per second per second and the same object dropped from the higher level will be traveling faster during the second half of its fall, thereby it will take less than twice the time required to fall half the distance.

How is the grasshopper adapted to detect moving objects in the environment?

Grasshoppers have compound eyes made up of multiple lenses that can detect movement due to specialized neurons that are sensitive to motion. They also have antennae that can pick up vibrations and air currents caused by moving objects. Additionally, their well-developed nervous system allows them to quickly process and respond to visual stimuli of moving objects in their environment.

What is the car's speed in miles per hour when the speedometer reads 70 kilometers per hour?

0.621371192

*

70=43.49598344

Answer:

We know that 1 kilometer = 0.621371192 mile

To find 70 kilometers per hour in miles.

70 kilometer per hour = 0.621371192* 70 miles per hour

43.49598344 miles per hour.

Therefore, 70 kilometers/hour = 43.49598344 miles/hour

How would energy usage vary if maximum exertion is reached?

I guess your talking about "substrate" utilization.

If one is working at maximum or near maximum intensity (exertion) then the body would most likely utilize the creatine-ATP system (Sprinting, Maximum Weight Lifting). I dont know if you're referring to calories burned but usually these types of exercise burn moderate amounts of calories while performing them. Research is out there is debating the "afterburn" of these types of exercises (calories burned after the exercise). Some say its significant, and others say its not. Try researching "EPOC" if your interested.

How does one determine the maximum energy to which a deuteron can be accelerated in a cyclotron?

The final energy attained by a deuteron undergoing cyclotron acceleration depends on the design of the cyclotron. In some machines the final energy may be as low as 3MeV whilst in others, 25MeV. Above 25MeV reletavistic effects kick-in and the cyclotron needs to be more sophisticated in its design.

It does depend on the cyclotron. Theres actually an equation for that. It takes into account the maximum radius of the orbit of the particles and the wavelength of the accelerating voltage. So for a given cyclotron with exactly specified values for radius and wavelength, the maximum kinetic energy of a particle depends on its rest energy and, hence, its rest mass.

But heres an easy way to figure it out: If a given cyclotron can accelerate protons to an energy of say, 2 MeV, then deuterons can be accelerated to 4 MeV. Multiply by a factor of 2.

What force allows work to be done?

Any force can produce work if it causes displacement. If displacement is in opposite direction of force, work done will be negative and if displacement is in direction of force work done will be positive. If there is no displacement, work done is zero. Eg: Gravitational force pulls you down towards earth, in pulling you down it does work on you which gets stored in form of potential energy.

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