Number of results: 7,887
physics
A 1920-kg Cadillac and a 1000-kg Volkswagen meet at an intersection. The stoplight has just turned green, and the Cadillac, heading north, drives forward into the intersection. The Volkswagen, traveling east, fails to stop. The Volkswagen crashes into the left front fender of ...
Friday, February 25, 2011 at 12:47pm by Anonymous
physics
A 50kg skier pushes off the top of a hill with an initial speed of 5m/s. Neglect friction. How fast will he be moving after dropping 20m in elevation? I was wondering if i did this problem correct. PE + KE_f = KE_i mgh +1/2mv_f^2 =1/2mv_i^2 50(10)(20) + 1/2 (50)v_f^2 = 1/2(50...
Wednesday, October 17, 2007 at 4:21pm by Tammy
Physics
A 50kg skier pushes off the top of a hill with an initial speed of 5m/s. Neglect friction. How fast will he be moving after dropping 20m in elevation? I was wondering if i did this problem correct. PE + KE_f = KE_i mgh +1/2mv_f^2 =1/2mv_i^2 50(10)(20) + 1/2 (50)v_f^2 = 1/2(50...
Tuesday, October 16, 2007 at 7:57pm by Andrea
Physics! PLEASE HELP re Newton's Laws
What would you do given the following scenarios? 1. You are the capitan of a spacecraft traveling in the far reaches of outer space, a great distance from any other body. Unexpectedly your radar indicates a meteor on a collision course with your craft, necessitating a sudden ...
Sunday, December 3, 2006 at 2:55pm by Sophie
Physics
what is the average force needed to stop a car traveling 28m/s in 55m?
Tuesday, February 19, 2013 at 6:30pm by Tory
Physics
what is the average force needed to stop a car traveling 28m/s in 55m?
Tuesday, February 19, 2013 at 6:04pm by Tory
Physics
A car traveling at 5.0 m/s accelerates at the rate of 0.8 m/s2 for an interval of 3.0 s. Find vf.
Thursday, February 7, 2013 at 11:32pm by Nicola
math
what is the stopping distance of a 3500 lb work truck traveling at 35mph?
Tuesday, June 19, 2012 at 5:45pm by Brian
math
How long a spaceship traveling at a steady speed of 14km/s to reach Jupiter?
Saturday, April 14, 2012 at 11:59pm by Ken
math
How long a spaceship traveling at a steady speed of 14km/s to reach Jupiter?
Saturday, April 14, 2012 at 11:59pm by Ken
science
A baseball with a mass of .8 kg is traveling at a velocity of 11.8 m/s. what is it kinetic energy
Monday, January 9, 2012 at 7:06pm by glenn
chemistry
What is the wavelength of a 2500 kg truck traveling at a rate of 70 km/h?
Monday, November 28, 2011 at 8:01pm by haley
Physics
What is the KE (in J) of a 2650 lb Honda Civic traveling at 100 mph?
Tuesday, October 11, 2011 at 4:09pm by Wingly
science
Please reread the question. You need to know how many km a minutes it is traveling.
Friday, September 23, 2011 at 4:59pm by Ms. Sue
Science-Motion
How could an object accelerate while still traveling at a constant speed
Wednesday, March 23, 2011 at 4:11pm by mickey
social studies
when traveling by sea, what were the challenges explorers faced when coming to california?
Friday, February 4, 2011 at 12:20am by pao
math
traveling at 60 mph, how long will it take to travel 210 miles?
Thursday, August 16, 2007 at 10:15pm by Anonymous
chemistry
What is the de Broglie wavelength of an oxygen molecule, O2, traveling at 503 m/s?
Sunday, November 7, 2010 at 6:03pm by Emily
chem
What is the wavelength of a 1400 kg truck traveling at a rate of 72 km/h?
Thursday, April 29, 2010 at 10:25pm by tt
Physics 103
No. It can be traveling along a magnetic field line and experiencing no force.
Tuesday, March 2, 2010 at 11:13pm by drwls
math
traveling 60 mi/h what is the speed in feet per second. How do you find this
Friday, October 23, 2009 at 10:05pm by kissy
Physics
Why is the momentum in a spaceship traveling in space not conserved? Can someone please expain? thanks
Tuesday, December 16, 2008 at 9:42pm by mw
Physics
An electron and a proton are traveling at the same speed. Which one has the longer wavelength?
Friday, April 4, 2008 at 2:20am by Rob
Physics
Write down the electric field and associated magnetic field in vacuum for a traveling plane wave with the following properties. The amplitude of the electric vector is E0 and the frequency is ω. The radiation is linearly polarized in the y-z plane at an angle &#...
Wednesday, May 8, 2013 at 4:02pm by amit sharma
physics
A 910 kg sports car slows down to 6.0 m/s to read a cross street sign. The 1440 kg pick-up truck following the sports car fails to see that the sports car has slowed and continues traveling at 17.0 m/s. The pick-up slams into the sports car. With what velocity will the two ...
Monday, November 29, 2010 at 7:21pm by help
Math
A bullet reaches a speed of 900 ft per sec in .2 sec. What is its acceleration.
Tuesday, May 14, 2013 at 9:39pm by Kory
Earth's Heat Resources
How is the energy that reaches earth's surface returned to space? is is by radiation?
Wednesday, December 8, 2010 at 10:22am by Sydney
Earth's Heat Resources
How is the energy that reaches earth's surface returned to space? is is by radiation?
Tuesday, December 7, 2010 at 9:25pm by Sydney
Science
How does the earth's tilt affects how directly light reaches different parts of the earth?
Wednesday, February 25, 2009 at 9:17pm by Matt
Trigonometry
the angle of elevation of the sun is 31 degrees. find the lenght of the shadow, to the nearest foot, of a man that is 6feet tall.
Tuesday, August 30, 2011 at 10:55pm by obieey
Geo
A 30ffoot tree cast a12 foot shadow find the measure of the angle of elevation of the sun to the nearest degree.
Monday, October 29, 2012 at 11:04pm by Kayla
alge
The angle of elevation of the sun is 31 degrees. Find the length of the shadow, to the nearest foot, of a man that is 6 feet tall.
Friday, March 30, 2012 at 8:58am by Anonymous
math
The area of the bottom of the pool is 45 x 75 = 3375 ft^2 Multiply that by the cost per square foot. I'd get another bid.
Tuesday, January 17, 2012 at 11:00pm by drwls
Physical Science
what forward force must the ground apply to the foot of a 60.0 kg person to result in an acceleration of 1.00m/s^2
Friday, October 14, 2011 at 5:04pm by Patricia
physics
If a 2000 pound train tilts of a 20 foot cliff at a 135 angle how long will it take to reach the ground?
Wednesday, September 21, 2011 at 4:05pm by daniel
Physics
Thanx! thats what i got, other than the fact that we had a 5 foot difference with the rope already so the total should be 35 m after 2 secs.
Thursday, December 9, 2010 at 5:02pm by Rahul
spanish
So you're basically asking if it's right that when someone has a broken foot, they sometimes need to use crutches? Yes...I think that's a pretty safe bet ;-)
Thursday, June 4, 2009 at 4:08pm by MattsRiceBowl
math
d=1.3times square root of h how high(to the nearest foot) would a platform have to be to see a distance of 15.5 miles?
Sunday, December 14, 2008 at 10:50pm by lisa
physics
A 62.0 skier is moving at 6.10 on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.30 long. The coefficient of kinetic friction between this patch and her skis is 0.330. After crossing the rough patch and returning to friction-free snow, she ...
Thursday, March 28, 2013 at 6:52pm by mira
English
1) An iamb is a two-syllable foot in an unstress-stress pattern as in the word "upon". 2) An anapaest is a three-syllable foot in an unstress-unstress-stress pattern as in "like a wolf". 3) An oxymoron is a figure of speech in which two contradictory words ...
Saturday, December 4, 2010 at 5:59pm by Writeacher
Matrices Word Problem
The stopping distance of a car traveling 25mph is 61.7 feet, and for a car traveling 35 mph it is 106 feet. The stopping distance in feet can be described by the equation y = ax² +bx, where x is the speed in mph. (a) Find the values of a and b. (b)Use your answers ...
Friday, July 22, 2005 at 1:34am by GetYourLeash
physics
A 445 g sample of ice at -58CENTIGRADE iS HEated until its temparature reaches -29 centigrade.find the change in heat contend of the system.
Thursday, March 7, 2013 at 10:45am by anjana
Intro to Physics
The disc reaches the bottom first, no matter what the ramp height and angle is. Acceleration depends upon the ratio of moment of inertia to M*R^2.
Tuesday, October 30, 2012 at 9:41pm by drwls
chemistry
A 445 g sample of ice at –58oC is heated until its temperature reaches –29oC. Find the change in heat content of the system.
Monday, September 10, 2012 at 4:35pm by Calorimetry problem
Physics
If the ball is tossed upward at 20 m/s, how long should it take before it reverses its direction (reaches its maximum height where its velocity is zero)?
Saturday, February 4, 2012 at 11:27am by Kayla
physics
A sled is initially given a shove up a frictionless 32.0 incline. It reaches a maximum vertical height 1.50 higher than where it started.
Tuesday, November 15, 2011 at 12:20pm by Anonymous
Math
h(x) = 4t(8-t) Since it leaves the earth at t=0 and comes back at t=8, I'd say 8 units (presumably seconds). It reaches max height at (0+8)/2 = 4. h(4) = 16(4) = 64
Thursday, October 13, 2011 at 4:49pm by Steve
physics
It reaches maximum height, H, when the initial kinetic energy (1/2)MVo^2 equals the potential enmergy gain mgH. At that time, H = Vo^2/(2g)
Saturday, October 1, 2011 at 11:01am by drwls
chemistry
All I know is, nitrogen in fertilizer can embed the water table and change the pH, which then becomes toxic as it reaches the Gulf (In the US). Might start with that.
Thursday, February 3, 2011 at 7:32pm by David
science
The atmosphere (especially clouds) scatters and absorbs solar radiation, reducing the amount that reaches the surface of the Earth by about 50%, on the average.
Wednesday, September 9, 2009 at 11:59pm by drwls
math
6' wide x 12 in/ft = 72 inches 72 inches/4 inches/brick = 18 bricks needed for the 6 foot side. 24' long x 12 in/ft = 288 inches. 288 inches/8 inches/brick = 36 bricks needed for the 24 foot side. 18 bricks wide x 36 bricks long = ?? bricks total to cover the area.
Tuesday, October 2, 2007 at 11:05am by DrBob222
Physical Science
See if any of the following links will help at all: http://search.yahoo.com/search?fr=mcafee&p=forward+force+must+the+ground+apply+to+the+foot+of+a+60.0+kg+person+to+result+in+an+acceleration+of+1.00m%2Fs%5E2+ Sra
Friday, October 14, 2011 at 5:04pm by SraJMcGin
physicS
A skier is gliding along at 6.93 m/s on horizontal, frictionless snow. He suddenly starts down a 17.2° incline. His speed at the bottom is 29.7 m/s. What is the length of the incline? i understand that the equation used is gH= change in (v^2)/2 so i plug in 9.8H=(29.7^2-6....
Friday, October 8, 2010 at 4:19pm by Jason
one more
Im sorry i have one more a skier started a fire in the firplace. each log she put on burned for a half hour if she started with a supply of 10 logs for how many hours could the fire burn? how do i make that into a problem? never mind it is so obvious. Thanks everyone for ...
Saturday, July 28, 2007 at 9:25pm by chrissy
Physics Projectile Motion
What angle (from earth) should one shoot a projectile so that it reaches it's maximum?
Thursday, November 8, 2012 at 9:58am by Leslie
physics
Until it reaches a height h such that m g h = 0.25 J h = 0.25/(0.125*9.8) = 0.204 m = 20.4 cm
Sunday, March 4, 2012 at 8:14pm by drwls
Physics
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net force acting on the body?
Wednesday, January 25, 2012 at 11:43pm by Emily
Physics
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net force acting on the body?
Wednesday, January 25, 2012 at 11:21pm by Emily
physics
acceleration=-1/2x^2.at time t=0it is at x=1.0m and its velocity v=o.find the time when it reaches x=0.25 m
Tuesday, September 6, 2011 at 1:41am by Anonymous
English
Sunlight hits the solar cells on the backpack. (Can we use reaches instead of 'hits' in this sentence?)
Tuesday, December 7, 2010 at 2:51pm by rfvv
earth
Search Results for "How many years pass befor light from Alpha Centeuri reaches earth?"
Tuesday, February 26, 2008 at 8:45pm by emily
inter med algebre
these were extra credit quest to help grade but i could not do these i asked so many people there were stumped can who gets this ques can u do the whole promlem pleasw. Questin; Pick a car and finf its top speed . Assuming that your chosen carnreaches its top speed at the top ...
Monday, December 13, 2010 at 3:55am by Linda P*
Chemistry
A weather ballon is prepared to lift off at the North Pole. The balloon is filled with 15000 L of helium gas. The conditions at the launch site are 760 mm Hg and 0 degrees celsius. The balloon is then released and rises to a height of 20,000 m. The atmospheric pressure ...
Saturday, May 2, 2009 at 8:10pm by Julie
math
Sam owns a triangular piece of land on which the tax collector wishes to determine the correct property tax. Sam tells the collector that “the first side lies on a straight section of road and the second side is a stone wall. The wall meets the road at a 24-degree angle. ...
Sunday, April 18, 2010 at 8:01pm by sarah
PHYSICS
Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #1: A skier with a mass of 60.0 kg is standing at the top of a snow covered ...
Thursday, March 7, 2013 at 8:20am by Anna
trig
with its arm fully extended to a length of 16ft, the maximum height that a man lift can reach is 18ft. The lowest height is 4ft, what is the position where the arm of the lift is horizontal. a) if a man gets on the lift and the arm is lifted through an angle 15degrees,what ...
Sunday, March 6, 2011 at 5:49pm by christianah
Math
Using the formula for the surface area of a SPHERE: Use Pi = 3.14 If the diameter of a sphere is 8 feet, find the surface area (round to the nearest square foot) 201 sq ft If a quart of paint covers 75 square feet, how many quarts of paint are needed to paint the surface? ...
Friday, May 16, 2008 at 4:50pm by Mike
Physics - rojectile Motion (check pls)
Imagine that you are solving a problem in projectile motion in which you are asked to find the time at which a projectile reaches a certain vertical position. when you solve the problem you find out two different positive values for time that both satisfy the condition of the ...
Saturday, August 21, 2010 at 12:06pm by Shaila
physics
A red train traveling at 72 km/h and a green train traveling at 144 km/h are headed toward one another along a straight, level track. When they are 950m apart, each engineer sees the other’s train and applies the brakes. The brakes decelerate each train at the rate of 1 ...
Sunday, September 17, 2006 at 2:29pm by ben
Physics
What is the frequency of the electromagnetic radiation from outer space that reaches the earth with a wavelength of 1 x 105 m, and a velocity of 1 x 105 m/s?
Thursday, February 9, 2012 at 8:23pm by Hannah
maths
how much time does a boy spend in his school when he reaches at 9.50am and leaves from his school at 2.40pm?
Sunday, September 4, 2011 at 6:33am by pankaj kumar
science
a shell has an initial velocity of 450 feet per second, what is the maximum height the shell reaches?
Tuesday, October 26, 2010 at 11:28pm by kayla
Science
How is radiotion different from convection and conduction? What happen to convection currents when a fluid reaches a constant temperature?
Sunday, October 10, 2010 at 10:57pm by Victor
Physics
If a bobsled with a total mass of 250kg, reaches the bottom of the hill at a speed of 92mph, how tall was the hill?
Monday, March 1, 2010 at 12:54pm by Leah
math (incomplete0
What is the shape of this hole? Is 6 feet a diameter? If so, V = πr^2h d = 2r one cubic foot = 7.48 gallons I'll let you do the calculations.
Monday, December 3, 2012 at 3:36pm by PsyDAG
math
Assuming 0.5 refers to 0.5ft, well, that is the same as 5/10 of a foot. Look at my answers to your other questions and you should be able to solve this without difficulty.
Tuesday, March 27, 2012 at 11:12pm by A.P.
english
. Explain what is wrong with the following sentence and revise as needed to correct the problem: “Swimming at the lake, a rock cut Sue’s foot.”
Tuesday, January 17, 2012 at 10:32pm by aran
English
the first one doesn't need any puncuation. After the book slid from my lap and landed on my foot; I realized that I had fallen asleep.
Saturday, October 15, 2011 at 5:53pm by Aran
chemistry
world class times in the 100 meters foot race areabout 9.10 seconds. how far is that in miles per hour
Tuesday, June 1, 2010 at 11:06pm by ngugi
math
A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges $3 per square foot for the refinishing?
Wednesday, September 16, 2009 at 9:06pm by p
science
using the numerical scale, one foot on the map would equal how many miles on earth's surface? show how you got your answer?
Thursday, October 16, 2008 at 9:11pm by Anonymous
math
A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges $3 per square foot for the refinishing?
Monday, February 18, 2008 at 5:27pm by will
Physics
what is the average force needed to stop a car (1000kg) traveling 28m/s in 55m?
Tuesday, February 19, 2013 at 10:53pm by Anonymous
science
how many seconds will it take a speedboat traveling at 70 km/h to cover a distance of 5km?
Tuesday, February 19, 2013 at 9:36pm by hello
Physical Science
A car with a mass of 1,400 kg is traveling at a speed of 40 m/s. What is its momentum
Thursday, December 6, 2012 at 3:36pm by Jazlynn
wireless communications
what is the period of the space shuttle traveling at 250km above the earth and what is its velocity
Sunday, December 2, 2012 at 4:36pm by tony
Pacific Island
Wind and current direction and strength are kind of important when you are traveling that way.
Friday, October 12, 2012 at 7:05pm by Damon
physics help please
My answers would be a, b, and d, where b and d are the same force. This assumes you are traveling very fast.
Friday, May 4, 2012 at 2:39am by Phil
Physical Science
What is the kinectic energy in joules of a 500kg automobile traveling at 45km/hr?
Tuesday, March 27, 2012 at 10:15pm by Patience
physics
How much kinetic energy does a 2000 kg traveling 70 mph have?
Tuesday, January 24, 2012 at 9:40pm by Joel
physics
Momentum of a bullet of mass 1.34 x 10-3 slug traveling 735 ft/ s
Thursday, August 25, 2011 at 9:25pm by krista
physics
A bus traveling at 30.0km/h accelerates at a constant 3.5 m/s^2 for 6.8s. what is its final velocity?
Sunday, August 21, 2011 at 7:25pm by Shannan
math
What is the kinetic energy of an arrow that weights 324 grains traveling 294 fps ?
Sunday, July 31, 2011 at 2:54pm by Anonymous
physics
That can't be correct. The speeder must be traveling faster than the police car (90 km/h).
Tuesday, July 12, 2011 at 11:01pm by CANTIUS
Physics
what is the kinetic energy in joules of a 1040-kg automobile traveling at 81 km/h ?
Monday, March 28, 2011 at 4:18pm by Adrienne
science
what keeps the moon traveling in the same path eah time it orbits earth
Monday, February 14, 2011 at 8:36pm by liz
science
a car traveling 20m/s brakes and takes 3s to stop. what is the acceleration in m/s2?
Thursday, January 6, 2011 at 8:31pm by Tia
physics
Why does a 10 gram bullet have more momentum traveling at 200m/s than at 20m/s?
Monday, December 13, 2010 at 9:50am by Brianna
science
what is the weight of a 48 kg astronaut in outer space traveling with constant velocity?
Sunday, November 14, 2010 at 5:52pm by Jackie
Physics
In what distance can a 25 gram bullet traveling at 250m/s be stopped by force of 5000N?
Sunday, October 17, 2010 at 11:23am by Aikawa
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