Phoenix Business Daily

Inertia...........? what's inertia and how is it involved with newton's first law

inertia????? ok what are some physical exaples of inertia?? like taking a dime and an index card and a cup. then u turn the cup upside down and place the index card on the cup. after that place the dime on the index card. the pull hard! it will land on the cup!!! so can u think of an example of inertia? 22 points for the example

How do you calculate the moment of inertia of a uniform solid cone? Calculate the moment of inertia of a uniform solid cone about an axis through its center. The cone has a mass M, a height h and a circular base of radius R.

How would I conduct a lab to find rotational inertia for a bicycle wheel? Given: A bicycle wheel without the tire on it, string, a set of known masses, other commonly available equipment. Find: The rotational inertia of the wheel. I received this yesterday in class and have to have it finished by tomorrow but can't seem to figure out how to go about it. Everything I can think of seems too easy.

What are the units of moment of inertia using grams and centimeters? Also, how do you find the moment of inertia of an object about the line x = c? I have to find it about the line x = -3/4. I only know how to find the moment of inertia about the x, y, or z axis.

How do you find the ratio of final moment of inertia to initial moment of inertia? As an ice skater begins a spin, his angular speed is 3.07 rad/s. After pulling in his arms, his angular speed increases to 5.76 rad/s. Find the ratio of the skater's final moment of inertia to his initial moment of inertia.

What is the moment of inertia of the rotating disk? An energy storage system based on a flywheel (a rotating disk) can store a maximum of 4.8 MJ when the flywheel is rotating at 19,600 revolutions per minute. What is the moment of inertia of the flywheel?

What is a good design for an efficient inertia driven vehicle? I need any kind of small contraption driven by inertia, it must weigh less than 500 grams and must be powered solely by an inertia driven mechanism. No springs or catapults or anything else allowed, needs to travel fast and far. Thanks It can't have a flywheel. It can only have rubber bands and floating weight to drive it.

What is the moment of inertia of the propeller? The net work done in accelerating a propeller from rest to an angular speed of 90 rad/s is 4459 J. What is the moment of inertia of the propeller? Answer in units of kg * m^2.

How do we protect ourselves from inertia in the car? I need to know for a science project how we protect ourselves from inertia in the car. I've come up with a few obvious solutions (seat belts, mass of the car, etc.), but my teacher says there are a few other ways. What are they?

What will happen to the planets if there were only inertia in our solar system? Gravity and inertia makes our solar system's planets to orbit around the Sun, but what will happen to the planets if there were only inertia? What direction will the planets go?

Braking system explained by inertia and the law of conservation of energy? Ok, well, In school I have to explain the braking system in terms of inertia and the law of conservation of energy. I've googled it, haven't found any information, wondering if anyone knew anything I could check out to help me, even so, if anyone could explain it in inertia and the law of conservation of energy. Thanks.

How are inertia and mass related to each other? Can anyone explain to me the concept of inertia in detail? And what is it's relation to mass? Then guys, is inertia and weight related to each other?

How is inertia responsible for removing most of the water from wet clothes in a washing machine? I am interested to know how inertia affects the way a washing machine works

How many Inertia/Shock sensors are required on multiple panes of glass? I am fitting inertia/shock sensors as part of a burglar alarm but I would like to know how many sensors it takes to cover double doors(French) and windows? Can I get away with just one sensor on a pair of doors or windows or do I need a sensor per each pain of glass?

Can anyone tell me where the fuel pump inertia switch is in a 2002 Chevy blazer 2dr 4.3 liter vortec? Can anyone tell me where the fuel pump inertia switch is in a 2002 Chevy blazer 2dr 4.3 liter vortec? We don't have an owner's manual. Thanks in advance for any help.

How do you calculate the ratio of final to initial moment of inertia? As an ice skater begins a spin, his angular speed is 3.07 rad/s. After pulling in his arms, his angular speed increases to 5.66 rad/s. What is the ratio of the skater's final moment of inertia to his initial moment of inertia?

Where is the fuel inertia switch on a 1992 Chevy Silverado? I have no power to my fuel pump. I was informed by someone about an inertia switch, just dont know where to look. Thanks for any help ahead of time. Thx for the response Wes. I have a new relay, and when I hook up my fuel pump to direct power it works. Thx for the response Wes. I have a new relay, and when I hook up my fuel pump to direct power it works.

What is moment of inertia for an axis that passes through the ornament's center? A hollow glass holiday ornament in the shape of a sphere is suspended on a string that forms an axis of rotation through the ornament's center. If the ornament has mass 0.0074 kg and radius 0.036 m, what is its moment of inertia for an axis that passes through its center? Please help!

What is the rotational inertia of the system? Three particles, each of mass 2.0 kg, are fastened to each other and to a rotation axis by three massless strings, each 0.340 m long. The combination rotates around the rotation axis with an angular velocity of 20.0 rad/s in such a way that the particles remain in a straight line. What it the rotational inertia of the system?

What is the moment of inertia of the rock before it is released? David hurls a rock, which acts as a point particle, of weight 9.8 N at Goliath using a weightless sling with a length of 1 m. What is the moment of inertia of the rock before it is released?

What is the moment of inertia of this triangle about an axis perpendicular to its plane? Three 0.10kg balls are connected by light rods to form an equilateral triangle with a side length of 0.40m . What is the moment of inertia of this triangle about an axis perpendicular to its plane and passing through one of the balls? Thank you, now I understand how to do the problem

What is its moment of inertia about an axis that passes through its center? A regulation table tennis ball has a mass of 2.7 g and is 40 mm in diameter. What is its moment of inertia about an axis that passes through its center?

how to calculate moment of inertia of a clutch disc?what is the formula for that? i want to check moment of inertia of a clutch plate assembly. but i cant understand that there are so many variations in every readings. i dont know how?

How do you think aliens prevent inertia from overcoming them? I've heard that to fly space ships at the speed of light aliens must have some kind of technology that prevents inertia from over taking them when the stop or land.

How do you find moment of inertia and angular acceleration? 1. When a ceiling fan rotating with an angular speed of 2.70 rad/s is turned off, a frictional torque of 0.100 Nm slows it to a stop in 19.0 s. What is the moment of inertia of the fan? 2. A torque of 0.87 Nm is applied to a bicycle wheel of radius 0.30 m and mass 0.75 kg. Treating the wheel as a hoop, what is its angular acceleration?

How would a car made out of paper and film caps exhibit inertia at rest? I have no idea what the answer to this would be. Inertia is restistence to change in motion, but I don't understand how my small car made out of index cards and film caps for wheels would exhibit this.

What is the moment of inertia for this problem? A circular disk rotating at 800rpm is brought into contact with a stationary disk whose moment of inertia is 3 times the rotating disk's moment of inertia. What is the speed of the combination?

How to find inertia given mass and length? A thin uniform rod of mass M and length L is bent at its center so that the two segments are now perpendicular to each other. Find its moment of inertia about an axis perpendicular to its plane and passing through the point where the two segments meet.

Where is the inertia switch on a 2001 Mercury Cougar located? The fuel filter & fuel filter were replaced. If appears there isn't any spark at the plugs, so thoughts are it could be the inertia switch before we go replacing (distributor,coil, etc. )

Is there a way of deriving the moment of inertia of a solid sphere using trigonometric ratios? I tried to derive the moment of inertia of a solid sphere about an axis passing trough its centre of mass using sin and cos functions, but got lost. And btw I'm totally new to integration (so if there's a complex integral I'll have to steer clear). Please help me out and give me an idea where to start with.

What would the world and universe be like without inertia? What would happen when we rode a bike, kicked a ball, bumped a table, or pushed a friend? How do you describe and inertia-less world?

How do you figure out the coefficient for moment of inertia? I've started on moments of inertia in my mechanics dynamics class and I can't quite figure out what determines the coefficient out front. I know there's a table that has different values of them but is there a way to derive them without going too far out of the realm of the scope of the class?

What is the rotational inertia of the disk? A uniform disk with a mass of 5.0 kg and a radius of 0.16 m is rotating with a rotational velocity of 12 rad/s. (a) What is the rotational inertia of the disk? (b) What is the angular momentum of the disk?

What would happen if Inertia never existed? What I am asking is, what would happen to an everyday object, such as a ball, if Inertia never existed?

What is the rotational inertia of a solid iron disk? What is the rotational inertia of a solid iron disk of mass 46 kg, with a thickness of 5.66 cm and radius of 18.5 cm, about an axis through its center and perpendicular to it? [ ] kg · m2

what is the rotational inertia of a disk? A uniform disk with a mass of 3.5 kg and a radius of 0.15 m is rotating with a rotational velocity of 9 rad/s. (a) What is the rotational inertia of the disk? (b) What is the angular momentum of the disk?

Does anyone know where the inertia switch is located on an 2006 Dodge Charger? My car is not starting because my bonehead friend ran out of gas and now that the tank is full, the car is still not starting. A passerby told me I just need to press the fuel reset button (inertia switch) but I don't know where it is located and it doesn't state anything about the switch in the manuel. Someone please help!

What is the moment of inertia of the Earth? Both the rotational and revolutionary moment of inertia. The mass of the Earth is 5.98 x 10^24 kilograms, the radius of the Earth is 6.37 x 10^6 meters, and the distance from the Earth to the sun is about 150 million kilometers. Treat the Earth as a perfect, solid sphere even though its not perfect.

Can anyone answer these questions about inertia? I'm doing physics in science this year and I'm doing really badly. So what exactly is inertia? A golf ball and a ping pong ball are both stationary. Which has more inertia and why? In an accident a motorcyclist is flung forwards off his bike. Explain in terms of inertia.

How do you think Aliens counteract inertia? I've heard that to fly space ships at the speed of light aliens must have some kind of technology that prevents inertia from over taking them when the stop or land. English Pete - I'm convinced the truth is hidden somewhere in your answer.

What are some examples that demonstrate inertia? If a man is pushing a vending machine, does that qualify as inertia?

How do you find moment of inertia? When a ceiling fan rotating with an angular speed of 2.75 rad/s is turned off, a frictional torque of 0.140 Nm slows it to a stop in 18.5 s. What is the moment of inertia of the fan?

What is meant by inertia relief in flight dynamics and mechanics of solids etc? Could someone please explain the concept of inertia and inertia relief with relation to bending moment calculations. Thanks.

what is the relationship between disc radius and moment of inertia? I really need some help quick for a physics lab - what is the relationship between disc radius and moment of inertia. That is, if the inertia is proportional to r^n, what should n be? and WHY?

How do you calculate the moment of inertia from a rectangular plate? Calculate the moment of inertia of a rectangular plate with sides of lengths a and b respectively about the edge of length a.

What are the units for moment of inertia? I'm doing a physics problem, but I don't know the units for moment of inertia.

what is the net torque and rotational inertia of the wheel? A torque of 54 N·m producing a counterclockwise rotation is applied to a wheel about its axle. A frictional torque of 12 N·m acts at the axle. (a) What is the net torque about the axle of the wheel? (b) If the wheel is observed to accelerate at a rate of 4 rad/s2 under the influence of these torques, what is the rotational inertia of the wheel?

please help me, What is her angular velocity after she pulls her arms in and reduces her rotational inertia to? A skater is initially spinning at a rate of 12.7 rad/s with a rotational inertia of 2.91 kg · m2 when her arms are extended. What is her angular velocity after she pulls her arms in and reduces her rotational inertia to 1.64 kg · m2?

Physics: Is it possible to land back into a roller coaster after falling up from inertia? So if I person was in a roller coaster and was not wearing their seat belt restraint inertia would cause them to fall upward. Is it possible to land back into the roller coaster when he or she falls back down? Any links explaining this?

Using inertia and gravity how do the planets stay in orbit? Tomorrow I have my science final and on our study sheet we need to write a essay on using inertia and gravity how do the planets stay in orbit. I understand that a object in motion wants to stay in motion and suns gravitational pull but what keeps the earth from going straight into the sun? And what Neutons law is the inertia one?

Is the moment of inertia greater for a solid disk or for a disk with holes in it? I proved mathematically that the moment of inertia is greater for a solid homogeneous disk than for a disk with holes in it by separating it into a piecewise density function of position defined by a constant density if (x,y,z,) lies outside of the hole and 0 if (x,y,z) lies within the hole. I can't find anything to validate this though. Is my proof correct?

How much will the period of a physical pendulum change if we increase its moment of inertia by a factor? How much will the period of a physical pendulum change if we increase its moment of inertia by a factor of 19.87?

what is the rotational inertia of the wheel? A force of 29.73 N is applied tangentially to a wheel of radius 0.34 m. This force causes an angular acceleration of 1.20 rad/s2. What is the rotational inertia of the wheel?

What is the moment of inertia of the flywheel? An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.8MJ when the flywheel is rotating at 1.1×104 revolutions per minute. What is the moment of inertia of the flywheel? (answer in kg*m^2)

what is the moment of inertia of the wheel in kgm2? A rotating flywheel can be used to store energy. If it is required to store 1.00 X 106 J of energy when rotating at 400 rad/s, what is the moment of inertia of the wheel in kgm2?

What is the moment of inertia of the system? A 0.15 kg mass is on the end of a thin rod that is rotating about its center with an angular frequency of 17 rad/s the rod is .45 m long and has a mass of 0.06 kg. a) What is the moment of inertia of the system? b) What is the rotational kinetic energy of this system?

What is the moment of inertia of this wheel? A 32cm diameter bike wheel consists of a thin 4 kg rim (neglect width) and six spokes. If each spoke is 3 kg, find the moment of inertia of the wheel when it is rotated about its diameter. Help please.

What is the moment of inertia of the propeller? The net work done in accelerating a propeller from rest to an angular speed of 203 rad/s is 3950 J. What is the moment of inertia of the propeller? Answer in units of kgm2.

What is the polar moment of inertia for a square hollow shaft? What is the polar moment of inertia for a square hollow shaft?

Is inertia and therfore beta effected by if a ball rolls on its bottom or up the sides of a rail? so the ball is set on a rail but doesnt roll on it bottom but a slight way up the sides. would you expect this to reduce or increase the measured value of inertia ad therefore b over the theoreticl value? why?

How does this cup expieriment have to do with inertia? the expeiriment where you have a cup or a bucket of water, and you swing it upside down, but the water doesn't come out. how does this relate to inertia?

What's the difference between INERTIA and MOMENTUM? I know they're not the same but I just can't tell the difference. How are inertia and momentum related? thanks!!

What are some practical uses of inertia and mechanical advantage? I have science homework and i need to know 15 practical uses of inertia in everyday life and 15 practical uses of mechanical advantage in everyday life. Please help!!!!

After an accident in a 1994 Silverado, the car won't start after a side impact. Is there an inertia switch? I got hit on the passenger side. I'm wondering if my fuel tank was hit and maybe knocked my sending unit. I don't know if it is the inertia switch or something else. The car cranks but does not start. Is it possible that a side-impact would stall my engine? And not let it start?

how much will the period of a physical pendulum change by increasing its inertia? How much will the period of a physical pendulum change if we increase its moment of inertia by a factor of 29.77?

How does inertia and momentum relate to tackling in rugby.? I am doing an assignment on how two biomechanical principles (inertia and momentum) relate to tackling in rugby. If you know anything about this... please help. PS: If you dont know much about rugby maybe you know about another sport that has the same principles such as american football or rugby league... please help! Thank-you!

Does global warming have an effect on the inertia of Earth? In 1905 Einstein stated in his paper "Does the inertia of a body depend upon its energy-content?" that an object absorbing energy, for example light, will acquire a larger inertia and gets more difficult to accelerate. Now, since the earth is heating up by means of the easier absorption of light energy, can one now say that this has a measurable effect on the orbit of earth around the sun, which is related to gravitational acceleration. And, if so, what might this effect be?

Would filling a cockpit with viscous fluid reduce the Inertia experienced by the pilot? As stated in my question. Would the viscous fluid be effective in absorbing the inertia that the pilot experiences during flight maneuvers? I was watching Time Warp the other day and they were talking about Newton's Law with regards to fluids. Hit a viscous fluid fast enough and they would be able to absorb the energy (i think) for that short amount of time. What if if we filled the cockpit of an F1 racing car with fluid? would it help reduce the Inertia on the body effectively and efficiently?

If mass is a measure of inertia, does that mean if an object increases in mass as it is in motion? Mass is a measure of inertia, right? A car traveling at a high speed has a lot of inertia. Does this mean that the faster the car goes, the greater the inertia and the greater the mass?

How would you solve for this and what's a rotational inertia? If a trapeze artist rotates thrice each second while sailing through the air, and contracts to reduce her rotational inertia to one-half, how many rotations per second will result? (answer in 1/s)

How long will the inertia act on a body after detaching itself from another body in motion? Suppose a body A is moving and another body B is on it. Now the body B is detached from body A and lands on the ground in x secs. In another instance it reaches the ground in y secs. x!=y. Will the body B have different inertia levels at both the instance? If so how the inertia decreases with time?

What is the final moment of inertia? How does she accomplish this change? A figure skater can increase her spin rotation rate from an initial rate of 1.0 rev every 2.0 s to a final rate of 3.0 rev/s. If her initial moment if inertia was 4.6 kg ∙ m², what is her final moment of inertia? How does she physically accomplish this change?

Why is the rotational inertia greater for a gymnast when she swings by her hands from a horizontal bar wit? Why is the rotational inertia greater for a gymnast when she swings by her hands from a horizontal bar with her body fully extended than when she executes a somersault with her body fully extended?

how does the moment of inertia relate to this period concept? A thin, circular hoop with a radius of 0.22 m is hanging from its rim on a nail. When pulled to the side and released, the hoop swings back and forth as a physical pendulum.The moment of inertia of a hoop for a rotational axis passing through its edge is I =2MR^2 What is the period of oscillation of the hoop?

How long will the inertia act on a body after detaching itself from another body in motion? Suppose a body A is moving and another body B is on it. Now the body B is detached from body A and lands on the ground in x secs. In another instance it reaches the ground in y secs. x!=y. Will the body B have different inertia levels at both the instance? If so how the inertia decreases with time? Suppose you travel on a bus, moving at some speed. U get out of the bus, standing on the foot board once and next time u get out from the roof. Will you have the same amount of inertia when you land in both the instances? Ofcourse bus is moving at same speed in both the instances.

what is the moment of inertia of two disks? Two disks have the same radius R and the same mass M, but one of the disks is twice as thick as the other. Disk A has thickness t, and disk B has thickness 2t. How does the moment-of-inertia of disk A about an axis through the center compare to that of disk B? Specifically, what is the ratio I_A / I_B ?

Can I use moment of inertia in an expandable balancing device to achieve the balancing of a building? Building consists of a vertical structural grid and a balancing device, instead of cantilevers, with the ability to distance itself from the building's centre of mass, thus increasing its moment of inertia. I argue that any additional loads applied to the building can be cancelled out by the increase of the balancing device's moment of inertia and by taking advantage of its potential kinetic energy. True or False?

How do inertia of direction act in catching a ball? Inertia of Direction is the tendency of a body to oppose any change in it's direction of motion

how does inertia and gravity combine to keep the planets in orbit? how does inertia and gravity combine to keep the planets in orbit?

Studying for an exam, need an explanation for inertia and rotational kinematics? If two objects, a uniform disk and a uniform sphere, have the same moment of inertia about their axes of rotation and the same angular velocity, then the disk has the larger rotational kinetic energy. Why is this answer false ok, im an idiot, its the same. Thanks

Finding I-max and direction cosines from an inertia matrix of a rigid body with respect to its centroidal axes? Problem is this: [I] = (3x3 matrx) 1, -2, 1; -2,2, -1; 1, -1, 3 a)Determine the maximum principle moment of inertia b) Determine the direction cosines of the principal direction corresponding to this maximum. Have went thoroughly through the book and cannot find this being used, the closest I found were 3x3 matrices in relation to Ix or Iy only. Any help appreciated, thanks!

What is moment of inertia? How should I calculate MI of any object? what does MI depend on? Does it defer from mass moment of inertia? If it does, how?

What are the factors that affect the object's rotational inertia? How would these factors affect? What are the factors that affect the object's rotaitonal inertia? How would these factors affect? really need this answer pls

How do you combine the moments of inertia of two units of mass ? As in...I have a cuboid fixed to a wheel. So once I find the moments of inertia of each one...how do I find the overall moment of inertia of the entire structure ? Do ypu just add the two moments of inertia (MoI) together ? say..MoI of cuboid = x MoI of wheel = y So MoI of total structure = x + y ? is that correct ? or is this where the parallel axis theorem and all that come in ?

how does inertia and gravity combine to keep the planets in orbit? how does inertia and gravity combine to keep the planets in orbit?

What do you do to snap out of "inertia of rest"? "inertia of rest" - the tendency of the body to remain inactive and lazy after several days of taking it easy and doing nothing but relaxation. For some of us, tomorrow (Monday) is back to drudgery day. It had been a truly stress-free 4 1/2 days (Thanksgiving holidays) but it all ends now. I'm just not ready for Monday yet. What can I do? Help pleaseeeeee!