Wednesday

September 2, 2015
Number of results: 44,555

**physics**

A car drives around a curve with radius 410 m at a speed of 39 m/s. The road is banked at 4.6°. The mass of the car is 1600 kg. (a) What is the frictional force on the car? (b) At what speed could you drive around this curve so that the force of friction is zero?
*March 25, 2010 by Anonymous*

**Physics**

A car with mass m require 5.0 KJ of work to move from rest to a final spee v. If this sam amount of work is performed during the same amount of time on a car with a mass of 2m, what is the final speed of the second car.
*May 20, 2012 by Cristiao*

**PHYSICS ANSWER CHECK**

A car can brake to a stop from 60mph in 2.6 seconds. If the car has a weight of 3225 lbs, what force in Newton's acts on the car. F=ma, vt=v0+at, a=(vt-v0)/t=(0-60mph)/2.6s=-23.1m/s^2 3225 lbs=1462.84 kg thus F=1462.84kg*(-23.1m/s^2)=-63.3N
*April 25, 2015 by MJW*

**physics**

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure. The length of the arc ABC is 259 m, and the car completes the turn in 38.0 s. a)Determine the car's speed.m/s b)What is the magnitude and direction of the ...
*October 18, 2012 by Karrine*

**COLLEGE PHYSICS**

A car with mass of 1400kg is towed with a net force of 4500N. the car starts from rest, find the speed of the car traveled after it traveled 100m. W=FnetX distance=ma x distance 4500N=(1/2)1400kg V^2 2.5m/s=V is this right? if not what am i doing wrong?
*October 21, 2007 by Anonymous*

**Algebra, word problem**

A small firm produces both AM and AM/FM car radios. The AM radios take 15 h to produce, and the AM/FM radios take 20 h. The number of production hours is limited to 300 h per week. The plant’s capacity is limited to a total of 18 radios per week, and existing orders require ...
*September 14, 2007 by Marinda*

**Physics**

A speeder passes a parked police car at a constant speed of 23.9 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.21 m/s 2 . How much time passes before the speeder is overtaken by the police car? Answer in units of s How far does the ...
*September 4, 2012 by Momo*

**PHYSICS**

A speeder passes a parked police car at a constant speed of 25.1 m/s. At that instant,the police car starts from rest with a uniform acceleration of 2.86 m/s^2. 1) How much time passes before the speeder is overtaken by the police car? Answer in units of s 2) How far does the ...
*September 13, 2012 by Willow Newman*

**physics**

A speeder passes a parked police car at a constant speed of 25.8 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.68 m/s^2. How much time passes before the speeder is overtaken by the police car? Answer in units of s How far does the ...
*September 14, 2014 by Mar*

**Physics**

A car travels at 64 mi/h when the brakes are suddenly applied. Consider how the tires of a moving car come in contact with the road. When the car goes into a skid (with wheels locked up), the rubber of the tire is moving with respect to the road; otherwise, when the tires roll...
*September 21, 2012 by Anne*

**Physics**

The mass of a rocket car plus fuel is 2,000kg. The rocket car starts from rest. The engine expels fuel(in the form of exhaust) over a period of 8 seconds. The exhaust has a velocity of 1,000m/s due west, and the velocity of the rocket car after 8 seconds is 90m/s due east. How...
*April 29, 2012 by Sarah*

**Physics**

The mass of a rocket car plus fuel is 2,000kg. The rocket car starts from rest. The engine expels fuel(in the form of exhaust) over a period of 8 seconds. The exhaust has a velocity of 1,000m/s due west, and the velocity of the rocket car after 8 seconds is 90m/s due east. How...
*April 30, 2012 by Sarah*

**FInite Math**

A car rental agency has rental and return facilities at both Dallas and Austin Airports. Assume that a car rented at either airport must be returned to one or the other airport. If a car is rented at Austin, the probability that it will be returned there is .80; If a car is ...
*May 6, 2014 by Katie*

**Calculus**

A car starts from point P at time t=0 and travels at 45 mph. A)write an expression d(t) for the distance the car travels from p. (would it just be y=45x??) B)What is the slope of the graph? what does it have to do with the Car? D)Create a scenario in which t could have ...
*August 24, 2011 by Sarah*

**Physics**

A rollercoaster car speeds up and down a hill past points a, b, and c as shown. The car has a mass of 500 kg and a speed of 25.0 m/s at point B where the track radius is 10 m. A: What is the maximum speed the car can have at point c, radius 19.6 m, for the gravitational force ...
*June 3, 2012 by Bobby*

**physics**

A 3800 kg car travels around an unbanked corner at the recommended speed of 65 km/hr. the radius of curvature is 80 m. a) what is the force that the road exerts on the car to keep it in motion around the corner? b) what force would the road need to exert if the car was ...
*September 19, 2012 by Delia*

**Physics**

A 76.3-kN car is travelling at 68.7 mph when the driver decides to exit the freeway by going up a ramp. After coasting 355 m along the exit ramp the car\'s speed is 30.1 mph, and it is h = 14.3 m above the freeway. What is the magnitude of the average drag force exerted on the...
*April 29, 2013 by Help*

**Physics**

A car travels due east with a speed of 50.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth.The traces of the rain on the windows of the car make an angle of 60 degrees with the vertical. Find the velocity of the rain with respect to (a) ...
*September 10, 2013 by Cassie*

**physics**

please help If a 120 volt line to a socket is limited to 15 amperes by a fuse, will it operate a 1200 watt hair dryer? yes????
*November 11, 2007 by miley*

**Physics**

A 1200 N force is exerted on a 700 kg crate to move it across a loading dock. If the coefficient of friction is .50 what is the crates acceleration?
*November 21, 2011 by Anonymous*

**Physics**

A 1200-kg frictionless roller coaster starts from rest at a height of 24 m. What is its kinetic energy when it goes over a spot that is 12 m high?
*May 10, 2012 by Bob *

**algebra**

A car travels down the highway at speeds between 50 miles per hour and 65 miles per hour. If the car travels for 4 hours, write an expression that represents the distance, d, the car has travelled.
*November 1, 2013 by lala*

**Physics**

A car is moving at 50 miles per hour. The kinetic energy of that car is 5 × 105 J. How much energy does the same car have when it moves at 114 miles per hour? Answer in units of J
*June 20, 2014 by Kaylee*

**physics**

A car is moving at 36 miles per hour. The kinetic energy of that car is 5 × 105 J. How much energy does the same car have when it moves at 115 miles per hour? Answer in units of J
*December 12, 2014 by Maya*

**math**

If a car is travelling at 35 MPH and rear ends another car, at what rate will the impact be?
*October 22, 2007 by MARY*

**Physics**

What average force is required to stop an 1700 car in 7.0 if the car is traveling at 75 ?
*September 8, 2010 by Ariel*

**Physics**

What average force is required to stop an 1700 kg car in 7.0 s if the car is traveling at 75 km/h?
*September 8, 2010 by Ariel*

**physics**

What average force is required to stop an 1300 -kg car in 9.0 s if the car is traveling at 90 km/h?
*September 21, 2010 by cindy*

**Physics**

What average force is required to stop an 1600 -kg car in 8.0 s if the car is traveling at 80 km/h?
*October 11, 2010 by Katie*

**determining speed**

car leaves a 20 ft. skid mark how fast was the car traviling
*January 12, 2011 by karl*

**physics**

What average force is required to stop an 1900 car in 6.0 if the car is traveling at 80 ?
*April 18, 2011 by colleen*

**Physics**

A car experiences an average acceleration of 5.00 km/hr/s for 3.50 sec. What is the change in velocity of the car?
*May 18, 2011 by Daniel*

**Physics**

a car travels at 20km/h for 1.5h, at 30km/h for 2.0h, and at 40kmh for 0.75 h. What is the car average velocity
*August 1, 2011 by Jazz*

**Science**

A car travelling at 27 m/s2 hits a wall with 48,600 N of force. What was the car's mass?
*November 4, 2011 by Nora*

**physics**

The car has a mass of 1200kg Calculate the kinetic of the car when it travels at a speed of 12 m/s.
*February 16, 2012 by Dan*

**Physics**

A car is initially traveling at 20 m/s when it accelerates to 35 m/s in a time of 5 seconds. What is the acceleration of the car in m/s^2?
*April 20, 2012 by Matthew *

**NSCI 110**

a car that was initially moving at 25 m/s is accerlerated at 4.0 m/s^2 for 5.0 s. the final speed of the car is?
*October 7, 2012 by ebony*

**sci**

a car performs 40,000 j of work in 5 sec. what is the power of the car. what is the horsepower?
*November 16, 2012 by Aj*

**science**

list two things that car manufacturers do to improve a car's efficiency
*January 13, 2013 by max*

**Physics **

A car rounds a curve with a radius of 25 m at a speed 30 m/s. What is the centripetal acceleration of the car?
*September 22, 2013 by Alison*

**phyiscs **

A car has an acceleration of 0.5g. calculate the time for the car to accelerate from 10m/s to 25m/s
*October 15, 2013 by abdul*

**Physics**

If a car is accelerating, is the car's velocity constant. Please sentence explanation.
*August 26, 2014 by Brianna*

**physics**

Starting from rest, the car is going 29 ft/s (20 mi/h) at the end of 5.0 s. What is the car's average acceleration in ft/s2?
*September 18, 2014 by kim*

**Physics**

It takes 180 kJ of work to accelerate a car from 21.0 m/s to 27.5 m/s. What is the car's mass? kg?
*October 26, 2009 by RE*

**Physics**

A car accelerates from rest to 30m/s in 10s. What is the car's acceleration?
*January 23, 2011 by Rene*

**physics**

It takes 214 kJ of work to accelerate a car from 23.1 m/s to 29.3 m/s. What is the car's mass?
*February 27, 2011 by heather*

**physics**

It takes 214 kJ of work to accelerate a car from 23.1 m/s to 29.3 m/s. What is the car's mass?
*February 28, 2011 by shaknocka*

**physics**

It takes 175 kJ of work to accelerate a car from 23.9 m/s to 27.7 m/s. What is the car's mass?
*November 30, 2011 by Al*

**physics **

A 1,600 kg car is traveling at a speed of 12.5 m/s. What is the kinetic energy of the car?
*November 15, 2012 by austin *

**physics**

It takes 222 kJ of work to accelerate a car from 22.1 m/s to 29.9 m/s. What is the car's mass?
*April 9, 2013 by Anonymous*

**physics**

It takes 228 kJ of work to accelerate a car from 22.3 m/s to 29.2 m/s. What is the car's mass?
*May 2, 2013 by Anonymous*

**Physics**

A 650 kg car traveling 8 m/s speeds up to 15 m/s in 25 s. Find the impulse on the car.
*May 2, 2013 by Zar*

**physics**

It takes 242 kJ of work to accelerate a car from 20.2 m/s to 28.2 m/s. What is the car's mass?
*October 20, 2014 by iamstupid*

**physics**

A 1500 kg automobile travels at a speed of 105 km/h along a straight concrete highway. Faced with an emergency situation, the driver jams on the brakes, and the car skids to a stop. (a) What will be the car's stopping distance for dry pavement (µ = 0.85)? (b) What will be the ...
*September 20, 2010 by Tom*

**Algebra**

Two cars start at the same point at Alexandria, verginia, and travel Ans 50mph, 55mph 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed of each car.
*March 28, 2013 by Lora*

**Need someone to check **

It is known that about 20% of car insurance policies include emergency road service. Suppose we randomly select 10 car insurance policies. What is the probability that at least one policy will have emergency road service? Answer 0.6242 0.3758 0.8926 0.2684 0.1074 What is the ...
*February 9, 2011 by Anonymous*

**Precalculus**

This is for solving exponential/logarithmic functions: (This is a base e Logarithmic function I would assume): e^(4x)/10 =4^x-2 ? I understand the properties of logs for the most part, but I have a hard time figuring out the step-by-step process on how to solve exponential/log...
*December 11, 2012 by Sarah*

**Physics**

Okay, I saw this one previously posted, but the answer it kept leading me to was wrong. A sports car of mass 1400kg (including the driver) crosses the rounded top of a hill (radius 88m) at 23 m/s. Find the normal force exerted by road on the car. I thought that the normal ...
*March 7, 2010 by Morgan*

**physics**

if a 60-kg woman is riding in a car traveling at 90 km/h is her linear momentum relitive to (a) the ground or (b)the car
*February 4, 2008 by melissa*

**physical science**

a car has a mass of 1000kg and accelerates at 2m/s/s. What is the magnitude of the force exerted on the car.
*September 10, 2008 by robin*

**9TH GRADE SCIENCE**

A car takes 3.6's to accelerate from 11m/s to 24 m/s. What is the car's Accelerationi in Meters/s?
*September 30, 2008 by JUSTIN M*

**eco systems**

a car plant uses how many gallons of water to make one car
*May 12, 2009 by delena*

**Finance**

a car sells for $25000. if the rate depreciation is 15% what is the value of the car after 7 years
*February 9, 2010 by alex*

**finance**

a car sells for $25000. if the rate depreciation is 15% what is the value of the car after 7 years
*February 9, 2010 by please help me*

**algebra**

a car sells for $25000. if the rate depreciation is 15% what is the value of the car after 7 years
*February 9, 2010 by please help me*

**physics**

A car starts from rest and accelerates to a speed of 25 m/s in a time of 6 seconds. What os the acceleration of this car?
*October 1, 2010 by cameron*

**science**

If Sally is pulling a toy car with mass of 20g with a force of 7N, what is the car's acceleration?
*November 15, 2010 by klk*

**physics**

a car starts from rest and travels for 4.2 s with a uniform deceleration of 1.8m/s^2. what is the final velocity of the car?
*January 13, 2011 by james*

**Physics**

A tow truck exerts a force of 3000 N on a car, accelerating it at 2 m/s2 . What is the mass of the car?
*February 1, 2011 by Peter*

**icp**

you wreck a car travveling at 88 m/sec and decelerate at -200/s2 how far will the car crumble in at you.
*March 28, 2011 by rich*

**physics **

A car goes at a constant velocity of 15 m/sec for 4 seconds. How far does the car go in that time?
*June 16, 2011 by Ashley *

**physics**

A mosquito inside a car is not hit by the back wall when the car starts moving.Why?
*July 29, 2011 by ...........................*

**physics**

A car accelerates from rest at a constant rate of 2.2 m/s2 for 6.9 s. How far does the car travel in this time?
*October 3, 2011 by Steven*

**Physics**

a car traveling at 13 m/s^2 for 8.00 seconds. what is the distance the car travels? show all work
*December 8, 2011 by Anonymous*

**physics**

A car is traveling at Vx =20 m/s. The driver applies the brakes, and the car slows with ax = -4m/s^2. What is the stopping distance
*January 29, 2012 by larry*

**Kinematics**

A car traveling with a velocity of 4 m/s accelerates at 3 m/s^2(squared) for 10 s. How far does the car travel in the 10s?
*June 10, 2012 by Anonymous*

**Algebra**

When the costs of a car is multiplied by 0.04 the result is $1760. Find the cost of the car. The answer is $?
*August 5, 2012 by Tammie*

**Physics**

A car slows from 17 m/s to 2.0 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at 2.0 m/s?
*September 13, 2012 by Shelby*

**physics 1**

A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?
*September 19, 2012 by sergio*

**physics 1**

A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?
*September 19, 2012 by sergio*

**woodlake hills/ science**

The car jose is examing has a mass of 25 grams. What is the destiny of the car?
*September 27, 2012 by jacob*

**physics**

A 1400 kg car takes a 50 m unbanked curve at 14 m/s. What is the size of the friction force on the car?
*October 19, 2012 by Dominic *

**Physics**

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 27, 2012 by Joan*

**Physics**

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 M*

**Physics**

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 30, 2012 by Joe*

**physics**

If a 0.5kg toy car is rolling down a hill with a velocity of 0.8m.s, what is the car's momentum?
*February 11, 2013 by Sarah*

**math**

a car travels at an average speed of 100 km/hr. how many km will the car travel in 2 hours, 15 min?
*February 13, 2013 by Lori*

**Physical science**

How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?
*March 10, 2013 by Kizzy*

**Physical science**

How much work is required to stop a car that is 800.0 kg car that is traveling at 20.0 m/s?
*March 10, 2013 by Kizzy*

**Physics **

A car traveling at 11m/s accelerates to 2.82m/s^2 for 13 seconds how far does the car travel?
*August 25, 2013 by Jay*

**science**

A car is traveling down the road at 25 m/s,and then increases their speed to 45 m/s in 5 seconds. What is this car's acceleration?
*September 13, 2013 by teddy*

**science**

A 1.92 × 103 kg car accelerates uniformly from rest to 12.4 m/s in 3.77 s. What is the work done on the car in this time interval?
*January 24, 2014 by Ti'Anna*

**science**

A 1.92 × 103 kg car accelerates uniformly from rest to 12.4 m/s in 3.77 s. What is the work done on the car in this time interval?
*January 24, 2014 by Ti'Anna*

**mathematics**

If a car travels at a constant speed of 112 km/h, How far will the car travel in 15 minutes.
*March 6, 2014 by melony henry*

**Physics**

A car slows from 23 m/s to 3.4 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at 3.4 m/s?
*September 7, 2014 by Alexis*

**physics**

In 10 seconds a car accelerates 3m/s^2 to 90m/s. How fast was the car going before it accelerated?
*September 29, 2014 by Alisha*

**physics**

What average force is required to stop a 920kg car in 7.7s if the car is traveling at 83km/h ?
*February 15, 2015 by Dre*

**Physics**

A car that slows down uniformly from 20 m/s to 5 m/s has an impulse of 30,000 kg m/s. Determine the mass of the car
*March 6, 2015 by Jut*

**physics**

Car traveling on circular track. Point A is at positive x,y. Point B is at positive x, negative y. A car is traveling around a horizontal circular track with radius r = 220 m as shown. It takes the car t = 51 s to go around the track once. The angle čA = 31° above the x axis, ...
*October 7, 2013 by Anonymous*

**Physics HW Help, Please**

A 76.3-kN car is travelling at 66.5 mph when the driver decides to exit the freeway by going up a ramp. After coasting 418 m along the exit ramp the car\'s speed is 27.3 mph, and it is h = 10.7 m above the freeway. What is the magnitude of the average drag force exerted on the...
*November 12, 2012 by Michael*