Sunday

March 1, 2015

March 1, 2015

Number of results: 42,739

**Physics**

A car without ABS (antilock brake system) was moving at 16.5 m/s when the driver hit the brake to make a sudden stop. The coefficients of static and kinetic friction between the tires and the road are 0.553 and 0.410, respectively. (a) What was the acceleration of the car ...
*June 13, 2011 by Anonymous*

**Physics**

A race car starts from rest on a circular track of radius 500 m. The car's speed increases at the constant rate of 0.520 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following. a)speed of the race car (m/s) b)the ...
*October 18, 2012 by Karrine*

**College physics**

A toy car has a mass of 120g, including two 1.5 V batteries connected in series. Suppose the motor that drives the car is 80\% efficient (i.e., 80\% of the electric energy goes to the drive wheels, 20\% is dissipated as heat) and that friction and air resistance are negligible...
*July 17, 2010 by katie*

**math**

There was a car accident. The first car was going 50 mph before the accident occurred, and the second car was going 60 mph. When the cars were at this speed, they were 40 feet away from each other. They were accelerating 2 mph per foot. How fast were they going at impact?
*March 11, 2013 by Kaytlynn*

**AP Physics**

A Honda Civic and Lincoln Town Car are initially at rest on a horizontal parking lot at the edge of steep cliff. The Town Car has twice as much mass as the Civic. Equal constant forces are applied to each car and they accelerate across equal distances (ignore effects of ...
*December 3, 2009 by Hannah*

**chemistry problem**

A carbon nucleus has six protons and six neutrons. How many electrons would it take to equal the mass of a carbon nucleus? ok. i think theres some type of formula or some trick to figure this one out but i don't know what it is. If you guys know how to figure this out can u ...
*September 20, 2010 by Sarah*

**math**

There are a total of 107 foreign language students in a high school where they offer only Spanish, French, and German. 42 take Spanish. 46 take French. 45 take German. 8 take Spanish and French but not German. 8 take Spanish and German but no French. 6 take French and German ...
*December 15, 2010 by Christy*

**Physics Honors**

A car travels due east with a speed of 60.0 km/h. Rain is falling vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 45.0° with the vertical. Find the velocity of the rain with respect to the car and with respect to the...
*October 16, 2010 by Kristen*

**science**

A 400kg sports car collides with a stopped pickup 40m/s. After the collision, the sports car stops and the pickup moves forward at 15m/s. What is the momentum of the sports car before the collision? What is it the mass of the pickup?
*November 14, 2009 by Jon*

**math**

Angela is making brownies. They need to bake for 47 minutes. She put them in the oven at 6:30 p.m. At what time should she take them out?
*January 5, 2008 by mashika*

**Chemistry**

How to work out: The half-life of Indium-116 is 14 seconds. How long will it take for 32g of this isotope to decay to 1.og?
*December 1, 2012 by Anonymous*

**Math**

Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? How would I work this out? Thank You
*January 18, 2014 by Keith*

**Math 12**

Melinda and Milan both need a place to live. Melinda has decided to rent a house for $1200 per month. Milan has decided to buy a house for $210000 which he will finance with a 18 year mortgage at 3.9%, compounded semi-annually. Milan must make a down payment of $17000 and he ...
*March 9, 2014 by Stiles*

**physics**

in an air bag test a car traveling at 100km/h is remotely driven into a brick wall. suppose an identical car is dropped onto a hard surface. from what height would the car have to be dropped to have the same impact that with the brick wall?
*September 25, 2009 by john*

**physics**

a car is approaching a traffic light at 25m/s when it turns red. The driver takes 1 second to react and put his foot on the brake pedal, after which the car decelerates at 2m/s^2. find the distance needed for the car to come to stop after the light turns red
*January 25, 2011 by Keith*

**Physics**

A car sits in the parking lot. Above is a cargo plane, flying horizontally at 61 m/s. At the exact moment the plane is 182 m directly above the car, a crate accidentally falls from its cargo doors. Relative to the car, where will the crate land? Enter m as unit and use g = 10...
*January 22, 2013 by Jessica-- Please help!*

**Physics**

A car sits in the parking lot. Above is a cargo plane, flying horizontally at 61 m/s. At the exact moment the plane is 182 m directly above the car, a crate accidentally falls from its cargo doors. Relative to the car, where will the crate land? Enter m as unit and use g = 10...
*January 22, 2013 by Robert*

**electronics**

how do you get your ipod to play songs in the car using the car speakers ... like what do i need for that to happen
*August 25, 2008 by damainmind*

**physics**

A car with a mass of 1435 kg moves at 11 m/s. What braking force is needed to bring the car to a halt in 10 s?
*May 27, 2010 by leah*

**Physics**

A car is travelling with a 5m/s in 25 minutes at a distance of 30cm calculate initial velocity and declaration of the car.
*November 29, 2010 by Abdullah*

**Physics**

A car is travelling with a 5m/s in 25 minutes at a distance of 30cm calculate initial velocity and declaration of the car.
*November 29, 2010 by Abdullah*

**physics**

A car is traveling at v = 16m/s . The driver applies the brakes and the car decelerates at a= -4.0 m/s^2 . What is the stopping distance?
*February 4, 2011 by Anonymous*

**Physics**

A high-performance car accelerates from from zero to 26.8 m/s (60 mi/h) in 3.093 s. Find the magnitude of the car's acceleration.
*February 6, 2011 by Anonymous*

**physics**

When your car is moving at 3.33 m/s and car has a mass of 860 kg, how much translational kinetic energy does it have?
*February 21, 2011 by olga*

**physics**

A 1,000 kg car accelerates uniformly to double its speed from 13.5 ms in 5.77 s. What net force acted on this car?
*April 3, 2011 by nofa*

**physics**

The gauge pressure in each of 4 car tires is 240kpa. If each tire has a footprint of 220cm^2 , what is the mass of the car?
*April 9, 2011 by Mark*

**physical science**

A car travels at a constant speed of 60 km/h for 3.5 hours. What is the total distance that the car has traveled?
*September 13, 2011 by kannon*

**physics**

a car slows from 22m/s to 3m/s at a constant rate if 2.1m/s. how many seconds are required before the car is traveling at 3m/s
*September 19, 2011 by bob*

**Physics**

A car has a velocity of 10m/s it now accelerate at 1m/s square, for 1/4.find the final speed of the car.
*October 2, 2011 by Anonymous*

**physics**

A car moving 17 m/s slows down at a uniform rate of 2.6 m/s2. How far does the car travel in 3.3 seconds?
*October 5, 2011 by Anonymous*

**Physics **

a car traveling westward at 20 m/s turns around and travels eastward at 5 m/s. what is the change in velocity of the car?
*October 5, 2011 by Katie*

**Physics**

A car traveling at 18 m/s accelerates at 5.5 m/s2 for 9 s. How far does the car travel during the time it is accelerating for 9 seconds?
*October 14, 2011 by Idk*

**Physics**

A sports car of mass 1311.8 kg can accelerate from rest to 21.22 m/s in 3.5 s. What is the average forward force on the car?
*January 5, 2012 by Jordyn*

**physics**

(a) What is the acceleration of a car in m/s² that doubles its speed from 36.0 km/h in 5.00 s? (b) What net force acted on this car if its mass was 1,000.0 kg?
*January 22, 2012 by sarah*

**physics**

suppose your car is on a 5% grade,if your car weighs 15,000N what is the component of its weight parallel to the road?
*July 7, 2012 by Chad*

**Physics**

A car with a mass of 1500 kg moves at 26 m/s. What braking force is needed to bring the car to a halt in 10 s?
*July 25, 2012 by DENNIS*

**Science**

A 1000 kg car moves at 60 m/s. What braking force is needed to halt the car (change its momentum) in 6 s?
*September 8, 2012 by bri*

**physics**

a) a car does an emergency stop from 120000m/s in 3s. what was it's deceleration? b) what was the car's average velocity and what was the stopping distance? thank you
*September 19, 2012 by nicky*

**physics**

A car decelerates from 30 m/s and rests at 6 seconds in a period of 5 m/s. How far did the car travel during that time.
*September 21, 2012 by Anonymous*

**physics**

A car decelerates at a constant rate from 98.5 km/h to 67.9 km/h over a distance of 0.651 km. How many seconds is the car decelerating?
*October 4, 2012 by Victoria*

**MATH**

WALTER HAS A CAR PAYMENT OF 417.HOW MUCH WILL HIS CAR PAYMENTS TOTAL IN ONE YEAR?
*October 15, 2012 by ARIANNA*

**physics**

A 1.53×10 3 kg car accelerates uniformly from rest to 13.6 m/s in 2.44 s. What is the work done on the car in this time interval? Answer in units of J
*November 15, 2012 by Anonymous*

**math**

You paid $26696.5 for a new car. This includes the 7% sales tax. What was the original cost of the car?
*November 15, 2012 by keyla*

**trigonometry**

The wheels of a car have radius 11 in. and are rotating at 800 rpm. Find the speed of the car in mi/h. mi/h
*November 26, 2012 by monic*

**PHYSICS - PLEASE HELP**

A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
*November 28, 2012 by Mary*

**physics**

a car of mass m1800kg is pushed off a cliff of height h = 25.0m how long was the car in the air
*December 6, 2012 by Anonymous*

**science**

if the car had a mass of 2050 kg and was traveling 25 miles per second, what was the car momentum?
*December 20, 2012 by none ya*

**physics**

A 1500.0 kg car accelerates uniformly to double its speed from 35.9 km/h in 4.74 s. What net force acted on this car?
*February 5, 2013 by Emily*

**Science**

A race car, moves at a constant speed around an oval track. Is the car accelerating? Why or why not?
*February 23, 2013 by Mia*

**science**

A car with a mass of 700 kg moves at 18 m/s. What braking force is needed to bring the car to a halt in 10 s?
*February 25, 2013 by George*

**physics**

A 1,400kg car is traveling in a straight line. Its momentum is equal to 2,000 kg. What is the velocity of the car?
*January 23, 2014 by karen*

**Physics**

A 64 kg student traveling in a car with a constant velocity has a kinetic energy of 1.6 10^4 J. What is the speedometer reading of the car in km/h?
*March 4, 2014 by Donisha *

**Physics**

How large an average force is required to stop a 1400-kg car in 5.0 s if the car’s initial speed is 25 m/s?
*March 12, 2014 by Bola*

**Physics**

What is the magnitude of the average force required to stop an 1400kg car in 9.0s if the car is traveling at 85km/h ?
*October 3, 2014 by Anonymous*

**Physics**

a 60-kg student travelling in a car with a constant velocity has a kinetic energy of 1.2 *10^4 J. What is the speedometer reading of the car in km/h?
*December 11, 2014 by Jade*

**physics**

a car has a mass of 820 kg. It starts from rest and travels 41 m in 3.0s. What is the net force applied to the car?
*February 1, 2015 by none*

**physics**

A car traveling due east at 20 m/s reverses its direction over a period of 10 seconds so that it is now traveling due west at 20 m/s. What is the direction of the car’s average acceleration over this period? a- The car’s average acceleration points due west. b- The car’s ...
*October 22, 2014 by gee*

**Physics!!**

A car moving at 16.0 m/s, passes an observer while its horn is pressed. Find the difference between the frequencies of sound heard when the car approaches and when it recedes from the stationary observer. The velocity of sound is 343 m/s and the frequency of the sound of the ...
*April 4, 2009 by sophie*

**physics**

A car has an acceleration of 2 m/s2, what does this tell you about the volocity of the car .
*January 9, 2011 by naomi*

**physics**

A race car accelerates from 0.0 m/s to 30.0 m/s with a displacement of 45.0 m. what is the car's acceleration ?
*March 5, 2012 by blue*

**physics **

a car travels 50 meters in 1 second. what is the car's velocity?
*May 23, 2012 by ben*

**physics**

a car traveling at 7 m/s accelerates to a velocity of 12.0 m/s in 2.0s. what is the acceleartion of the car?
*September 25, 2012 by jenna*

**physics**

A car accelerates from 0m/s to 51m/s with a displacement of 75 m. What is the car's acceleration
*December 18, 2013 by Hi*

**physics**

A car accelerates from 0m/s to 51m/s with a displacement of 75 m. What is the car's acceleration
*December 18, 2013 by Hi*

**Math**

The price of a new car is 20,000. Assume that an individual makes a down payment of 25% toward the purchase of a new car and secures financing for the balance at the rate of 10%/year compounded monthly. What monthly payment will be required to make if the car is financed over ...
*January 29, 2013 by Bersy*

**physics**

A certain elevator car has mass 2200 kg and is lifted by cables driven by an electric motor. The efficiency of the lift system (motor, pulleys, cable, etc.) is 67.0%. As the elevator car moves at constant speed of 3.0 m/s it encounters 220N of friction coming from its tracks. ...
*December 1, 2013 by Bob*

**physics help**

An amusement park ride consists of a car moving in a vertical circle on the end of a rigid boom of negligible mass. The combined weight of the car and riders is 5.1 kN, and the circle’s radius is 10 m. At the top of the circle, what are the (a) magnitude FB and (b) direction...
*March 3, 2010 by Anonymous*

**physics**

a drunken motorist who is moving at a constant velocity of 90 km/h passes a stationary police patrol car. The patrol car immediately gives chase at a constant acceleration and catches up with the motorist after a distance of 10 km. Calculate the time taken by the patrol car to...
*November 2, 2012 by sarah*

**Physics**

A old Chevy accelerates at a rate of 3.8 m/s^2. How much time would it take to reach the speed limit of 100 km if the car was travelling at the speed of 70.0 km? a) 2.9 s b) 3.7 s <---- c) 5.4 s d) 30.0 s 2. Find the acceleration of a skier sliding down a mountain at a rate...
*January 18, 2015 by Lucina*

**Physics**

Do Newton's Law apply to motion inside your car? A.Yes, but only when at rest. B.Yes, but only when traveling at constant velocity or at rest. C.No, never. D.Yes, always. So I tried answering the question with D at first because I was thinking that it is a car in motion so ...
*July 8, 2014 by Sophie*

**physics**

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 40.0° with the vertical. Find the velocity of the rain with respect to the ...
*January 24, 2010 by Michelle*

**physics**

A Hot Wheels car of mass 0.081 kg starts at a height of 1.42 m and goes through a loop with a height of 0.38 m with a radius of 0.16 m along a track of length 3.02 m. The car barely makes it through the loop. Since, Work = Force x distance, what is the force of friction acting...
*November 10, 2014 by Frankie*

**Physics**

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction as the car at a lower speed v2. (Use any variable or symbol stated above as necessary.) (b) What is the change in kinetic energy of the car–...
*March 8, 2014 by Joe*

**Physics**

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction as the car at a lower speed v2. (Use any variable or symbol stated above as necessary.) (b) What is the change in kinetic energy of the car–...
*March 10, 2014 by Joe*

**Physics**

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction as the car at a lower speed v2. (Use any variable or symbol stated above as necessary.) (b) What is the change in kinetic energy of the car–...
*March 12, 2014 by Joe*

**math**

The stopping distance (s) of a car varies directly as the square of its speed (v). If a car traveling at 50 mph requires 170 ft to stop, find the stopping distance for a car traveling at v2 = 55 mph.
*November 17, 2014 by Irma*

**Physics**

A car with a mass of 890 kg travels at a speed of 20.0 m/s. Seeing that the road ahead is blocked by a rock slide, the driver applies the brakes, stopping the car. The work of stopping the car becomes thermal energy of the car’s four disk brake rotors; in other words, all of ...
*April 18, 2011 by Kaylynn*

**physics**

A car with a mass of 890 kg travels at a speed of 20.0 m/s. Seeing that the road ahead is blocked by a rock slide, the driver applies the brakes, stopping the car. The work of stopping the car becomes thermal energy of the car’s four disk brake rotors; in other words, all of ...
*April 18, 2011 by Kaylynn*

**physics **

A car with a mass of 890 kg travels at a speed of 20.0 m/s. Seeing that the road ahead is blocked by a rock slide, the driver applies the brakes, stopping the car. The work of stopping the car becomes thermal energy of the car’s four disk brake rotors; in other words, all of ...
*April 28, 2011 by Anonymous*

**math**

Please help with all of these: 3 out of 32 10 out of 30 20 out of 29 3 out of 35 9 out of 34 24 out of 33 17 out of 19
*February 19, 2010 by Mattie*

**physics**

A car starts from rest and accelerates uniformly along a straight horizontal road at 3 metres second squeared for 4 seconds,after which it continues with a constant velocity for a further 6 seconds.CALCULATE THE MAGNITUDE OF THE MAXIMUM VELOCITY OF THE CAR, THAT IS THE ...
*September 3, 2011 by Anonymous*

**PHYSICS**

A 1000kg sports car accelerates from 0 to 25m/s in 7.5s what is the average power delivered by the engine? i know that POWER= W/delta T =Fv but im not sure how to calculate W can someone help me out with this one?
*October 24, 2007 by magic 8 ball*

**science**

a car of mass 900 kg moves at 10 m/s. what is the braking force required to stop the car in a time of 5 seconds?
*June 29, 2009 by anonymous*

**science**

a car of mass 900 kg moves at 10 m/s. what is the breaking force required to stop the car in a time of 5 seconds?
*September 17, 2009 by amy*

**physics**

A car is driven 105 km west and then 30 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*September 21, 2009 by DJ*

**physics**

a car is moving with a uniform speed of 15.0 m/s along a straight path. what is the difference covered by the car in 12.0 minutes?
*October 5, 2009 by jasmine*

**physics**

Starting from rest a car undergoes a constant acceleration of 6 m/s2. How far will the car travel in the first second?
*October 26, 2009 by Anonymous*

**physical science**

How much time should be allowed for a 392-km car trip if the car will be traveling at 120 km/h?
*December 4, 2009 by sandy*

**physics**

A car accelerates uniformly from rest to a speed of 64.5 km/h (17.9 m/s) in 10 s. Find the distance the car travels during this time.
*February 16, 2010 by lindsey*

**Physics**

A car is driven 135 km west and then 40 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*March 23, 2010 by Aastha*

**Physics**

A car is driven 135 km west and then 40 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*March 23, 2010 by Aastha*

**Physics**

A car and a truck travel with same velocity, the car has more kinetic energy. True or false
*August 18, 2010 by Anonymous*

**college physics**

A car starts has a position (in meters) given by x=kt^3 +2t where k is a constant ans t is in seconds. The velocity (in m/s) of the car at t=1 is:
*August 24, 2010 by Thomas*

**physics**

A 55 kg student traveling in a car with a constant velocity has a kinetic energy of 1.6 104 J. What is the speedometer reading of the car in km/h?
*September 17, 2010 by Steven*

**physics**

A car is driven 165 km west and then 25 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*September 26, 2010 by Carol*

**physics**

a stationary car with a mass of 1500 kg reaches a velocity of 15 m/s 5 seconds after starting, what is the car's acceleration
*October 18, 2010 by Joe Darp*

**Physics**

if a car is moving around a circular track at a constant speed of 55 mi/h, is there a net force acting on the car?
*October 25, 2010 by Janice*

**Physics**

Thanks you alot for correction. A car is travelling with a 5m/s in 25 minutes at a distance of 30 cm calculate initial velocity and decelaration of the car.
*November 29, 2010 by Abdullah*

**Physics**

Thanks you alot for correction. A car is travelling with a 5m/s in 25 minutes at a distance of 30 cm calculate initial velocity and decelaration of the car.
*November 29, 2010 by Abdullah*

**Physics**

Thanks you alot for correction. A car is travelling with a 5m/s in 25 minutes at a distance of 30 cm calculate initial velocity and decelaration of the car.
*November 29, 2010 by Abdullah*

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