Sunday

December 21, 2014

December 21, 2014

Number of results: 41,859

**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 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 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*

**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**

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**

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*

**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*

**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*

**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*

**algebra**

If I receive $6570 from the sale of my car and the sales person got a 10% commission, how much did my car sell for.
*November 29, 2010 by margie*

**physics**

A car is driven 145 km west and then 65 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*December 4, 2010 by Anonymous*

**Physics**

A car is driven 145 km west and then 65 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*December 4, 2010 by Anonymous*

**physics**

An original stationary car with a mass of 1500 kg reaches a velocity of 15 m/s/s after starting. what is the car's acceleration?
*December 5, 2010 by Anonymous*

**physics**

A car starts from rest accelerates with a constant acceleration of 1.5 m/s squared. HOw far does the car move in 4 seconds?
*December 10, 2010 by ME*

**physical science**

A student is traveling in a car with a constant velocity has a kinetic energy 1.0 x 10^4 J. What is the speedometer reading of the car in km/h.
*February 20, 2011 by sandy*

**PHYSICS**

A 70 kg student traveling in a car with a constant velocity has a kinetic energy of 1.4 104 J. What is the speedometer reading of the car in km/h?
*February 20, 2011 by CHRISTINE*

**Physics**

A 1760 kg car accelerates uniformly from rest to 8.8 m/s in 4.52 s. Find the work done on the car in this time. Answer in units of J.
*February 27, 2011 by Dave*

**physics**

Your car is broken, so you’re pushing it. If your car has a mass of 868 kg, how much momentum does it have when it’s moving forward at 4.74 m/s (17.1 km/h)?
*March 3, 2011 by olga*

**Science**

A car of mass 900kg moves at 10 m/s. what is the braking force required to stop the car in a time of 5 seconds?
*March 17, 2011 by shantae*

**Physics**

a 1000 kg car traveling at 30 m/s suddenly stops in 5 seconds. how much force was used to stop the car?
*April 13, 2011 by Kay*

**Applied Physics**

A car is traveling at 20 meters per second. The driver steps on the brake. The car is in equilibrium
*May 14, 2011 by EJ*

**physics**

The velocity of a toy car of mass 2kg increased from 5m/s to 10m/s in 2 seconds.what force was exerted on the car?
*July 1, 2011 by Anonymous*

**hjysical science**

A car makes a turn with a 20m radius, the car's speed is 10m.s. what is the centripetal acceleration?
*August 11, 2011 by Tally*

**physics**

A car accelerates uniformly from rest to a speed of 55 km/h (15 m/s) in 14 s. Find the distance the car travels during this time.
*October 8, 2011 by Girl*

**Physics**

A car accelerates uniformly from rest to a speed of 72.7 km/h (20.2m/s) in 11 second. the distance the car travels during this time.
*September 4, 2012 by helen*

**physics**

A 1.83×103 kg car accelerates uniformly from rest to 10.7 m/s in 3.44 s. a) What is the work done on the car in this time interval? Answer in units of J
*December 2, 2011 by ch*

**physics**

A 900-kg car is moving at 27.6 m/s. A braking force of -4320 N is applied for 4.60 s. What is the velocity of the car when the brakes are released?
*January 9, 2012 by Addie*

**physics**

A car is driven 30km west and then 80 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*January 23, 2012 by Anonymous*

**science**

a car starts from a stop. at the end of 30 seconds its speed is 20 meters per second. what is the acceleration of the car?
*February 22, 2012 by morgan*

**physics**

a toy car is accelerating across the floor at 6.0m/s^2 and a force of 10N is creating the motion. what is the mass of the car?
*April 9, 2012 by Chita_Cheee*

**physics**

A car starts from rest and travels for 4.1 s with a uniform deceleration of 2.1 m/s2. What is the final velocity of the car? Answer in units of m/s
*September 20, 2012 by shirley*

**physics**

A car is driven 105 km west and then 65 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)?
*September 30, 2012 by joe*

**PHYSICS**

At a drag race, a jet car travels 1/4 mile in 5.2 seconds. What is the final speed of the car and its acceleration?
*October 7, 2012 by Anonymous*

**Science**

When a car slams on its brakes what provides friction that helps the car stop? What kind of energy is produced?
*October 11, 2012 by Sam*

**Physics**

A car with a mass of 1797 kg is moving to the right at a constant velocity of 2.50 m/s. What is the net force acting on the car?
*October 12, 2012 by Emma*

**physics**

A car company states that their car can accelerate from rest to 70km/h in 7 seconds. What is the cars average acceleration?
*October 14, 2012 by Tri County north*

**physics**

A 1.13 × 103 kg car accelerates uniformly from rest to 10.6 m/s in 3.22 s. What is the work done on the car in this time interval? Answer in units of J
*December 16, 2012 by Brett*

**Physical Science**

A car of mass 900 kg moves at 10 m/s. What is the braking required to stop the car in a time of 5 seconds
*May 5, 2013 by Wanda*

**physics**

a car driving down a road due south at a constant speed of 55 mph. what is the car's acceleration? how do you know
*May 28, 2013 by Anonymous*

**Physics (Kinematics)**

A race car accelerates uniformly from 10 m/s to 50 m/s in 2 seconds. Determine the acceleration of the car and the distance traveled.
*August 13, 2013 by Ashley*

**physics**

A sports car moving at constant velocity travels 130m in 4.7s, what is the magnitude of acceleration if car brakes at 4.4m?
*September 4, 2013 by Anonymous*

**Physics**

A car is traveling at 24.4 m/s. If the driver has a reaction time of 1 second, what will be his stopping distance if his car slows down at 8 m/s2?
*September 19, 2013 by Joseph*

**physics**

choose the correct answer and why? a car starts from rest and reaches speed of 80 km/h in 16 s the average acceleration of the car is: a\ 0.7 m/s*2 b\1.4 m/s*2 c\5 m/s*2
*February 20, 2014 by Reem*

**physics**

A car traveling at2.24m/s skids and stops in 2.55s determine the skidding distance of car
*June 30, 2014 by Anonymous*

**Physics**

A 3000 lb car has an initial velocity of 10 mi/h. How much force is required to accelerate the car to a speed of 50 mi/h in 10 seconds?
*August 19, 2014 by YESHA*

**physics**

A car accelerates uniformly from rest to a speed of 73.6 mi/h in 7.68 s. Find the constant acceleration of the car. Answer in units of m/s 2
*October 21, 2014 by tom*

**math**

a car traveling 8 m/s suddenly brakes to a complete stop. THe stopping time was .36 seconds. what is the acceleration of the car?
*November 24, 2014 by Hailey*

**Physics**

A race car starts from rest on a circular track of radius 507 m. The car's speed increases at the constant rate of 0.790 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following. (a) the speed of the race car ____ m/...
*November 30, 2009 by Ed*

**physics, dynamics**

Car A starts from rest at t = 0 and travels along a straight road with a constant acceleration of 2 m/s2 until it reaches a speed of 27 m/s. Afterwards it maintains this speed. Also, when t = 0, car B located 2000 m down the road is traveling towards A at a constant speed of ...
*January 13, 2011 by siti*

**Physics**

A car parked on a hill. The driver starts the car, accelerates until the car is driving at constant speed, drives at constant speed, then brakes to put the brake pad in contact with the spinning wheels. How is static friction, sliding friction, rolling friction, and air ...
*February 17, 2012 by Micheal*

**math**

a car is traveling at the rate of 40 miles per an hour. how many minutes will it take it to travel 220 miles? 220/40=5.5 5.5*60=330 330
*August 26, 2010 by anonymous1*

**Algebra**

How long will it take for a car that is traveling at 60 mph to overtake a bus that is traveling at 50 mph if the bus had a 2-hour head start?
*September 3, 2010 by Marlene*

**algebra**

How long will it take a car traveling at 60 mph to overtake a bus traveling at 40 mph if the bus had a 1.5 hour head start?
*February 20, 2011 by Jam*

**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*

**Physics **

7. A formula 1 racecar is capable of very quick starts (with a launch control system, that prevents the wheels from spinning during rapid acceleration)). A 2011 Ferrari (driven by none other than Agent 001) is initially at rest, and undergoes a constant acceleration of 14 m/s^...
*February 13, 2013 by Navmeet*

**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*

**psychology**

Paul thinks of himself as an excellent negotiator after purchasing a brand new car.two months later,his brother in -law Noah purchases the same model for $1,000 less than Paul paid!According to cognitive dissonance theory,Paul will probably: a)decide that he isn't as good as ...
*October 16, 2009 by vedrana*

**Physics**

To stop a car, first you require a certain reaction time to begin braking. Then the car slows down at a constant rate. Suppose that the total distance moved by your car during these two phases is 56.7 m when its initial speed is 85.0 km/h, and 24.4 m when the initial speed is ...
*March 5, 2008 by Lance*

**physics**

a 2390 kg car traveling to the west at 22.4 m/s slows down uniformly under a force of 8740 N to the east. (a) How much force would be required to cause the same acceleration on a car of mass 3140 kg? Answer in units N (b) How far would the car move before stopping? Answer in ...
*February 9, 2009 by Bob*

**Physics**

A roller coaster (340. kg) moves from A (5.00 m above the ground) to B (28.0 m above the ground). Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. What is the ...
*October 24, 2010 by Xavier*

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