Thursday

July 31, 2014

July 31, 2014

Number of results: 498

**physics**

driving on a hot day causes tire pressure to rise. what is the pressure inside an automobile tire at 288, if the tire has a pressure of 30 psi at 318k? Assume that the volume and amount of air in the tire remain constant
*November 21, 2011 by veronica*

**Physics**

The warranty on a new tire says that an automobile can travel for a distance of 92,000km before the tire wears out. The radius of the tire is 0.33m. How many revolutions does the tire make before wearing out? hello CJ I think we are in the same class. I had sent you an e-mail...
*March 14, 2007 by CJ*

**Physics **

Suppose a large dump truck tire has a surface area of 26.3 m^2. If a force of 1.58×10^7 Newtons acts on the inner tire, what is the absolute pressure inside the tire? What is the gauge pressure on the tire's surface?
*January 9, 2013 by Trin*

**Physics **

Suppose a large dump truck tire has a surface area of 26.3 m^2. If a force of 1.58×10^7 Newtons acts on the inner tire, what is the absolute pressure inside the tire? What is the gauge pressure on the tire's surface?
*January 9, 2013 by Trin*

**Physics**

An automobile tire has a volume of 0.0185 m3. If the pressure in the tire is 500 kPa and the temperature is 298 K, how many molecules are there inside the tire?
*December 5, 2010 by Matt*

**Statistics**

Wrong tire pressure can increase tire wear and decrease gas mileage. A manufacturer of new tires tested the tire for wear at different pressures with the below results. Tire pressure (PPI:pounds per square inch) is related to how many miles a tire lasts, (1000's of miles). PPI...
*February 26, 2007 by Jason L*

**Physics**

An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, the air is compressed to 28.0% of its original volume and the temperature is increased to 36.0°C. a) What is the tire pressure? b) After the car is driven at high ...
*May 23, 2011 by MP*

**Math**

Casey paid $45 for one new tire and one used tyre for his bicycle. The new tire costs $17 more than the used tire. How much did the new tire cost? I have worked out the answer in my head, ($31) but is there a particular formula I can use or follow.
*May 31, 2012 by Miranda*

**chem 1p1**

An automobile tire at 22oC with an internal volume of 20.0L is filled with air to a total pressure of 30. psi(pounds per square inch). [1 atm = 14.696 lb/in2]. What is the amount in moles of air in the tire? If the air is mostly nitrogen, how many grams of it would be in the ...
*April 23, 2010 by josh*

**ocean view**

a bicycle tire rim has a diameter of24.5 inches, and the tire is 2.25 inches thick. find the circumference ofthe outside of the tire.
*May 26, 2011 by christopher*

**Chemistry**

A bicycle tire is filled with air to a pressure of 610 kPa at a temperature of 19 oC. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 oC. The volume of the tire increases by 4.0%. What is the new pressure in the bicycle tire?
*September 30, 2012 by Helga*

**shoshone**

A bicycle tire decoration covers 1/9 of the circle formed by the tire. If the tire has a diameter of 26 inches, what is the area of the decoration?
*March 13, 2012 by brit*

**physics(i also hae no idea)**

a car traveling at 30 m/s loses a tire. the tire rolls to a hill which it begins climbing without slipping how high up the hill will the tire climb?
*April 26, 2012 by visoth*

**Chemistry**

Assume that a bicycle tire with an internral volume of 1.50 liters contains 0.405 mole of air. The tire will burst if the internal pressure is 7.25 atm. What is the temperature of the air in the tire if a blowout occurs?
*April 22, 2008 by Jill*

**Physical Science**

A tire contains air at a pressure of 2.8 bar at 10C. If the tire’s volume is unchanged, what will the air pressure in it be when the tire warms up to 35C as the car is driven?
*July 21, 2012 by sara*

**statistics**

Please help asap! A tire company is considering a tire replacement company. They have agreed to replace any tire that fails with a life in the bottom 10% of the population. For a given population of tires, the life is a normal distribution with a mean of 27 months and a ...
*January 18, 2011 by Going crazy*

**Physics**

A tire 2.0 ft in diameter is placed on a balancing machine where it is spun so that its tread is moving at a constant speed of 51 mph. A small stone is stuck in the tread of the tire. What is the acceleration of the stone as the tire is being balanced?
*March 20, 2013 by Nikki*

**statistics**

Assume that Acme Tires sells their high performance tires for $180 each and their all weather tires for $135 each. Further assume that the cost of producing a high performance tire is $150 and the cost of producing an all weather tire is $120. Finally, assume that if a tire ...
*March 6, 2010 by joe*

**algebra**

There is a slow leak in your bike tire. The average rate of change of air in your tire is -2 pounds per square inch per day. The amount of air in your tire is now 70 pounds per sqsquare inch. Find the amount of air that will be in your tire in 5 days
*September 26, 2007 by John*

**Math**

Many tires come with 13/32 inch of tread. The first 2/32 inch wears off quickly(say during the first 1000miles). From then on the tire wears uniformly. A tire is considerd "worn out" when on 2/32 inch of tread is left. a. how many 32nds of an inch of usuable tread does a tire ...
*October 13, 2009 by Julie*

**statistic**

one of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is for 40,000 miles. The tire company beleives that the tire actually lasts more than 40,000 miles. A sample of 49 tires reveales that the mean number of miles is 45,000 ...
*December 10, 2012 by HN*

**physics conceptual**

The tires of a car support the weight of a stationary car. If one tire has a slow leak, the air pressure within the tire will _______ with time, the surface area between the tire and the road will ________ with time, and the net force the tire exerts on the road will ...
*January 27, 2013 by Julie*

**Physics**

An automobile tire contains a certain volume of air at 30 psig and 70 °F. The barometric pressure is 29.50 Hg. If due to running conditions, the temperature of air in the tire rises to 160 °F. What will be the gauge pressure? Assume that air is an ideal gas & that the tire ...
*February 22, 2010 by Janus*

**physics**

A tire with an inner volume of 0.0250 m3 is filled with air at a gauge pressure of 30.3 psi. If the tire valve is opened to the atmosphere, what volume outside of the tire does the escaping air occupy? Some air remains within the tire occupying the original volume, but now ...
*April 22, 2012 by Akbar*

**Physics**

Kathy is changing the tire of her car on a steep hill 20 m high. She trips and drops the 10 kg spare tire which rolls down the hill. What is the speed of the tire at the top of the next hill if the height of the hill is 5 m high?
*May 17, 2011 by Kelsey*

**statistics**

one of the major U.S. tire makers wishes to review its warranty for their rainmaker tire. The warranty is for 40,000 miles. The tire company beleives that the tire actually lasts more than 40,000 miles. A sample of 49 tires reveales that the mean number of miles is 45,000 ...
*May 16, 2011 by c*

**chemistry**

An automobile tire contains air at a pressure of 200. kPa and 25°C. The tire and its air heat up during traveling. If the pressure increases to 250. kPa but the volume remains the same, what is the temperature of the air inside the tire?
*April 9, 2013 by hi*

**thermodynamics**

an automobile tire contains a certain volume of air at 30 psig and 70 degree fahrenheit. The barometric pressure is 29.50 in.Hg. If due to running conditions the temperature of the air in the tire rises to 160 fahrenheit, what will be the gage pressure? assume that the air is ...
*September 17, 2012 by chi*

**math**

what is the circumference of a bike tire that is 180 what is the diameter of the tire to the nearest tenth of a inch
*February 15, 2013 by lilly*

**physical science**

which graph represents what happens to the pressure in a tire as air is added to the tire?
*October 15, 2013 by Anonymous*

**math**

A unicycle travels 50 feet. If the radius of the tire is 24 INCHES, how many times does the tire rotate?
*May 20, 2014 by Anonymous*

**physics**

An automobile tire is rated to last for 45,000 miles. Estimate the number of revolutions the tire will make in its lifetime.
*January 13, 2011 by christina*

**Math**

If a tire rotates at 150 revs/min when the truck is travelling 40km/h, what is the circumference of the tire? 4.44 meters
*April 10, 2012 by Jarrod*

**Math**

A tire shop that sells only one size of tire, .75 metres in diameter, decides to sell tires for big rigs that are 1.5 metres in diameter. If the cost of the .75 meter tires is $100.00 for four, how much will it cost for the 18 tires required for a big rig? Prices increase ...
*May 9, 2012 by ♫J.R.♫*

**pre cal**

if a 22 inch tire rotates 40 times per 2 minutes, determine the linear and angular speed of the tire.
*February 6, 2011 by karina*

**pre cal**

If an 22-inch tire rotates 40 times per 2 minute, determine th elinear and angular speed of the tire.
*February 8, 2011 by karina*

**Physics**

A boy sits in a tire that is attached to a rope that passes over a pulley fastened to the ceiling and then passes back down to the boy's hands. The weight of the boy plus the tire is W. The force with which the boy must pull on the free end of the rope to support his weight in...
*January 9, 2010 by Phil*

**physics**

A car tire rotates with an average angular speed of 29rad/s. In what time interval will the tire rotate 3.5 times? Answer in units of sec.
*May 3, 2011 by fg*

**Math- Trig please help!**

A tire with a diameter of 100 cm rotates 20 times in 3 seconds. a) determine the angular velocity b) how far the tire has travelled? c) what is the speed in km/h?
*November 29, 2011 by linda*

**Math 1**

The tire on franks bike moves 75 inches in one rotation how many rotations will the tire have made after frank rides 50 feet?
*March 3, 2014 by Jenny 2*

**physics**

A motorcycle accelerates uniformly from rest and reaches a linear speed of 33.4 m/s in a time of 11.6 s. The radius of each tire is 0.265 m. What is the magnitude of the angular acceleration of each tire?
*April 9, 2014 by Anonymous*

**Physics**

1.A net force that is linearly increasing in time is applied to an object. What is time dependence of the object's kinetic energy? 2.A tire is rolling along a road, without slipping, with a center of mass velocity of v. A piece of tape is attached to the tire. When the tape is...
*November 1, 2009 by Sandhu*

**physics**

A car travels at 107 km/h on a level road in the positive direction of an x axis. Each tire has a diameter of 74.0 cm. Relative to a woman riding in the car and in unit-vector notation, what are the velocity at the (a) center, (b) top, and (c) bottom of the tire and the ...
*October 31, 2012 by Alexander*

**physics help**

A car travels at 80 km/h on a level road in the positive direction of an x axis. Each tire has a diameter of 66 cm. Relative to a woman riding in the car and in unit-vector notation, what are the velocity at the (a) center, (b) top, and (c) bottom of the tire and the magnitude...
*April 15, 2010 by beav*

**science-chemistry**

a bicycle tire that has a volume of 0.85L is inflated to 140 pounds per square inch. What will be the pressure in the tire if the number of moles of gas is doubled?
*April 29, 2012 by Bryan*

**Statistics**

The lifetime of a certain type of automobile tire (in thousands of miles) is normally distributed with mean 43 and standard deviation 7. Find the percentile corresponding to p = 29% of the tire lifetimes.
*June 16, 2013 by Anonymous*

**Chemistry**

Each of four identical tires of a car is filled with a different gas. Gas pressure in each tire is 3.0 atm at 25oC. One tire contains neon, another – argon, the 3rd one has krypton, and the last one has unknown gas. How many molecules are there in each tire? So far, I have ...
*November 12, 2008 by Jordan*

**Chemistry**

the air in a steel belted tire is at a gauge pressure of 29.8 psi at a temperature of 20 degrees celsius. After the tire is driven out fast on a hot road, the temperature in the tire is 48 degrees celsius. What is the tires new gauge pressure. Can someone please explain this ...
*February 12, 2011 by Lauren*

**Physics help!!**

A tire 0.500 m in radius at a constant rate of 200 rev/min.Find the speed and acceleration of a small stone lodged in the tread of the tire( on its outer edge).
*February 18, 2013 by Sammie*

**science**

A tire 0.500 m in radius rotates at a constant rate of 200 rev/min. Find the speed and acceleration of a small stone lodged in the tread of the tire ( on its outer edge ).
*February 17, 2013 by Sammie*

**Math**

The height from the ground to the top of a tire on a chold's bike is 42 cm. What's the distance the bike travels for one revolution of the tire?
*January 13, 2013 by Me(:*

**chemistry**

The total pressure in a 11.3 L automobile tire is 44 psi at 11°C. By how much does the pressure in the tire rise if it warms to a temperature of 29°C and the volume remains at 11.3 L?
*February 10, 2011 by HELP*

**Trig**

A tire is rotating 600 times per minute. Through how many degrees does a point on the edge of the tire move in 1 minute?
*July 5, 2013 by Jade*

**Physics**

The outer edge of a truck tire that has a radius of 20cm has a velocity of 21 m/s. what is the angular velocity of the tire in rad/s?
*October 25, 2010 by Jenni*

**math**

your bike tire has a radius of 14 inches. If your tire makes 100 revolutions, how many feet does your bike travel?
*April 25, 2012 by sara*

**Chemistry**

A tire is rotating 600 times per minute. Through how many degrees does a point on the edge of the tire move in 1 minute? In 1 second?
*July 5, 2013 by Jade*

**math**

The wheel on a child's bicycle is 48 cm in diameter. To test the strength of the tire, William lifts the back wheel 1 m from the ground and spins it at 36 turns/min. He attached a blue sticker to the bottom of the tire beforehand. Assuming that William spins the tire at a ...
*February 28, 2010 by Nadia*

**physics**

The outer edge of a truck tire that has a radius of 25 cm has a velocity of 26 m/s. What is the angular velocity of the tire in rad/s?
*November 26, 2010 by javane*

**physics**

The outer edge of a truck tire that has a radius of 50 cm has a velocity of 29 m/s. What is the angular velocity of the tire in rad/s?
*November 30, 2011 by Lauren*

**Chemistry**

Consider a tire at 35 Celcius filled with 32 psig of O2 instead of N2. Calculate the pressure in the tire at -18 celcius? Thanks!
*May 28, 2012 by Frank*

**algebra**

a car tire has a diameter of 3.5ft. How many revoulutions does each tire make if the car travelled 400ft ?
*January 12, 2013 by lovebugg*

**physics**

a tire inflated to a gauge pressure of 2 bars has a nail 3mm in diameter embedded in it. what is the force tending to push the nail out of the tire?
*July 3, 2012 by russel*

**physics**

a tire inflated to a gauge pressure of 2 bars has a nail 3mm in diameter embedded in it. what is the force tending to push the nail out of the tire?
*July 3, 2012 by russel*

**geometry**

A bicycle tire has a diameter of 60cm and rotates 33.3 revolutions per minute.How far does a point on the edge of the tire travel in a minute? Use 3.14 for pi.
*June 17, 2014 by Ghislaine*

**physics- isothermal, isovolumetric, or adiabatic**

Please check my answers. Identify the following processes as isothermal, isovolumetric, or adiabatic: a. a tire being rapidly inflated- adiabatic b. a tire expanding gradually while heating- isothermal c. a tire being heated while in a rigid metal container- isovolumetric c....
*February 4, 2007 by Anonymous*

**STATS**

The top selling Red and Voss tire is rated 70,000 miles means nothing. In fact, the distance the tires can run until they wear out is a normally distributed random variable with a mean of 82,000 miles and a standard deviation of 6,400. a. What is the probability that a tire ...
*September 16, 2011 by SANDRA*

**physics.**

A car travels forward with constant velocity. It goes over a small stone, which gets stuck in the groove of a tire. The initial acceleration of the stone, as it leaves the surface of the road is, a)vertically up b)horizontally forward c)horizontally backwards d) zero e)greater...
*December 28, 2006 by me*

**Chemistry**

Calculate the mass of air in an air-filled tire and the mass of helium in a helium-filled tire. What is the mass difference between the two? Assume that the volume of the tire is 857 , that it is filled with a total pressure of 125 psi, and that the temperature is 26 . Also, ...
*November 16, 2010 by Amanda*

**Statistics NEEED YOUR HELP ASAP!!!!!!!!!!!!!!**

The manufacturer of the X-15 steel-belted radial truch tire claims that the mean mileage the tire can be driven before the tread wears out is 80,000 km. The standard deviation of the mileage is 8,000 km. The Crosset Truck Company bought 48 tires and found that the mean mileage...
*April 3, 2010 by Samir*

**physics**

A spot of paint on a bicycle tire moves in a circular path of radius 0.27 m. When the spot has traveled a linear distance of 2.18 m, through what angle has the tire rotated? Give your answer in radians.
*November 4, 2010 by aok*

**physics**

A spot of paint on a bicycle tire moves in a circular path of radius 0.27 m. When the spot has traveled a linear distance of 2.18 m, through what angle has the tire rotated? Give your answer in radians.
*November 4, 2010 by aok*

**Physics**

Your right rear tire has to support a weight of 3000 Newtons. Normally the contact area of your tire with the road is 200 square centimeters. If the pressure in your tire is suddenly reduced from 32 pounds per square inch to 16 pounds per square inch, what must be the new ...
*May 15, 2012 by Bob *

**Precalculus**

Please help...a computerized spin balance machine rotates a 25 inch diameter tire at 480 revolutions per minute. (a) find the road speed in miles per hour at which the tire is being balanced (b) at what rate should the spin balance machine be set so that the tire is being ...
*September 13, 2012 by Michelle*

**math**

Your bike tire has a radius of 14 inches. If you travel a distance of 56 feet on your bike, how many complete revolutions did your bike tire make?
*April 25, 2012 by sara*

**Physics - Tire Pressure**

Why is the air (atmospheric) pressure of 14.7 lbs/in2 not included in the pressure gauge reading for a tire?
*October 5, 2009 by Mary*

**PHYSICS**

WHEN THE BAROMETRIC PRESSURE IS 14.9LBS\IN AND THE PRESSURE GAGE ON A TIRE READS 34.6LBS\IN WHAT IS THE ABSOLUTE PRESSURE INSIDE THE TIRE
*October 1, 2012 by PATRICK*

**math (word problem)**

Suppose a car tire has a diameter of 26 inches. How many rotations will thee tire make if the car travels 1 mile? Round to the nearest tenth. If you get answer please show work of how to get there. Thanks!
*March 29, 2011 by emma*

**Math**

If the diameter of a monster truck tire is 3.5 m and it makes one rotation every 5 seconds, how far does the tire roll in 1 minute? Diameter 3.5 radius: 3.5/2 = 1.75 12(2pi x 1.75) =131.9 m the book states that its 263.89 m? What did I do wrong?
*January 19, 2012 by jake*

**business**

Rocky Mountain Tire Center sells 20,000 go cart tires per year. The ordering cost for each tire is $40, and the holding cost is 20% of the purchase price of the tires per year. The purchase price is $20 per tire if fewer than 500 tires are ordered, $18 per tire if 500 or more-...
*March 30, 2011 by Gin*

**math**

Your company can make x-hundred grade A tires and y-hundred grade B tires a day, where 0≤x≤4 and y= (40-10x)/(5-x). The profit on each grade A tire is twice the profit on each grade B tire. Assuming all tires sell, what are the most profitable numbers of tire to make?
*August 7, 2012 by ibranian*

**College physics**

A 0.30 radius automobile tire accelerates from rest to a constant 2.0 rad/s. what is the centripetal acceleration of the point on the outer edge of the tire after 5.0seconds? i have no clue where to begin on this one can anyone help? do i leave the 2.0 inrad/s or convert to m/...
*October 22, 2007 by i hate physics*

**physics**

A rope attaches a tire to an overhanging tree limb. A girl swinging on the tire has a centripetal acceleration of 3.0 m/s^2. If the length of the rope is 2.1 m, what is the girl's tangential speed?
*November 16, 2010 by helmuth*

**Chem**

The total pressure in an 11.1L automobile tire is 40psi at 13 degree celcius. By how much does the pressure in the tire rise if it warms to a temperature of 56 degrees celcius and the volume remains at 11.1L ?
*April 10, 2011 by Maria*

**Math**

If a wheel has a nail stuck in the tire, the tire is 60m in diameter and the wheel drove R -234(1,0) how far did the nail travel?
*January 27, 2013 by Ronald*

**physics**

The gauge pressure in both tires of a bicycle is 720 kPa. If the bicycle and the rider have a combined mass of 87.0 kg, what is the area of contact of each tire with the ground? (Assume that each tire supports half the total weight of the bicycle.)
*January 23, 2013 by Anonymous*

**Physics**

A person who weighs 506 N is riding a 94-N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 6.70 x 105 Pa, what is the area of contact between each tire and the ground?
*February 8, 2013 by Ashley*

**physics**

A person who weighs 691 N is riding a 89-N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 8.40 x 105 Pa, what is the area of contact between each tire and the ground?
*November 18, 2013 by Anonymous*

**physics 1**

A person who weighs 869 N is riding a 98-N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 7.80 x 105 Pa, what is the area of contact between each tire and the ground?
*April 22, 2014 by Anonymous*

**math**

A company has two factories that manufacture tires. Suppose 65% of the tires are manufactured in factory 1 and 35% are manufactured in factory 2. In factory 1, 5% of the tires are defective. In factory 2, 2% of the tires are defective. a) Determine the probability that a ...
*May 23, 2011 by corey*

**Math**

The air pressure in a tire is 800.000kPa.The internal surface area of the tire is 550.000cm^2. Determine the total force applied by the air to the tire. (Round to 3 decimal places). ANS = 44.000kN Force = Pressure x Area = 800.000kPa x 550.000 = 440000.000N = 440.000kN I keep ...
*December 26, 2013 by Danny*

**math**

It takes about735 turns of an average of average 5 th grade byicycle tire to go 1 mile .to the nearest thousand how many times would your tire turn around if you biked besides the runners in a 26-mile marathon?
*March 7, 2011 by cindy*

**physics**

A stone has a mass of 6.01 g and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.948. When the tire surface is rotating at 14.7 m/s, the stone flies out of the ...
*February 23, 2011 by heather*

**physics**

A stone has a mass of 3.40 g and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.916. When the tire surface is rotating at 18.8 m/s, the stone flies out of the ...
*April 30, 2012 by Anonymous*

**Physics**

A stone has a mass of 6.00 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.73. When the tire surface is rotating at a maximum speed of 17 m/s, the ...
*November 7, 2012 by Don*

**Trig**

if a tire is out of round so that the radius in a certain direction is 1 inch more than in the opposite direction, what is the difference in linear speed between these two points on the tire? Angular speed is 40 radians per second
*September 12, 2007 by Kay*

**Trig/Physics**

A car's wheel (with tire) is 26 inches in diameter and its center is 12 inches above the road. If the car is traveling at 60 feet per second, how fast is the highest point of the tire moving relative to the ground?
*September 23, 2007 by Vash*

**Physics**

A tire cruises up an embankment at 30° for 1 meter before launching across Piranha Lake. What is the velocity of the tire at the top of the embankment in m/s? HELP: Inital KE of the tire is 1/2*M*V2 + 1/2*I*(V/R)2; both rotational and translational Final KE = Initial KE - M*g*...
*October 26, 2009 by Sara*

**Math**

The diameter of a car's tire is 60cm . While the car is being driven , the tire picks up a nail .How high above the ground is the nail after the car has travelled 1km
*December 8, 2011 by Melissa*

**Math**

A street is 282 m long is covered with snow. City workers are using a snowplow to clear the street. A tire on the snowplow has to turn 47 times in traveling the length of the street. What is the diameter of the tire?
*December 21, 2012 by Josh*

**physics**

a 40 kg student is riding a bicycle to school. the bicycle has a mass of 12 kg. the area that each tire makes contact with the road can be approximated by a rectangle of dimensions 6 cm x 4 cm. what is the pressure that each tire exerts on the road? give your answer in kPa to ...
*April 10, 2013 by Anjali*

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