Number of results: 16,771
Physics
A crate, which has a mass of m= 45 kg, is being accelerated at 3.2m/s^-2 up an frictionless inclined plane, which meets the horizontal at an angle of 35 degrees, by a rope. What is the magnitude of the normal force acting on the crate? What is the tension acting in the rope?
Saturday, December 8, 2012 at 5:53pm by Antonio
Physics.. please help!!!!!
A crate is pulled to the right with a force of 80 N, to the left with a force of 125.8 N, upward with a force of 615.4 N, and downward with a force of 248 N. What is the net external force in the x direction? y direction?? Also.... What is the magnitude of the net external ...
Wednesday, November 9, 2011 at 9:09pm by Elle
phys
Doug pushes a 4.65 kg crate up a 2.00 m high 13.0° frictionless slope by pushing it with a constant horizontal force of 35.8 N. What is the speed (in m/s) of the crate as it reaches the top of the slope assuming that the local acceleration due to gravity is -9.80 m/s2?
Wednesday, November 9, 2011 at 10:05pm by tc
physical
A crate of mass 20kg is pulled by a force of 100N at an angle 30 above the horizon an friction force of 20N develops between the crate and surface draw a force diagram and free body diagram
Wednesday, January 25, 2012 at 9:58am by Clothilda
physics
A red bead releasd from rest at height H slides down a wire without sticking to a green bead initally at rest. The mass of the green bead is half that of the stuck together beads both continue to slide down the wire and then slide back up. With the starting height of the green...
Tuesday, December 6, 2011 at 1:44pm by Margaret
Physics Please Help!
A solid disk with a mass ok 100 kg and radius of 0.2m turns clockwise through an angular displacement 10 rad when starting from rest attain its maximum angular speed of 1 revolution every 0.5s. How much time did it take for the disk to go from rest to maximum angular speed?
Tuesday, February 21, 2012 at 10:04pm by Brittany
Physics
A crate slides down a ramp at angle 48 degree to horizontal. The coefficient of limiting friction is 0.48. Find the options for the acceleration of the crate down the ramp.
Saturday, August 11, 2012 at 9:48pm by Alex
Physics
Fc = 50kg * 9.8N/kg = 490N. = Weight of crate in Newtons. Wc = 50kg / 0.454kg/lb = 110.1 lbs = weight of crate in lbs.
Wednesday, June 22, 2011 at 11:36am by Henry
trig
9y^2 - 4x^2 + 8x + 18y + 41 = 0 4x^2 - 8x - 9y^2 - 18y - 41 = 0 4(x^2 - 2x + ......) - 9(y^2 + 2y + .... ) = 41 let's "complete these squares" 4(x^2 - 2x + 1) - 9(y^2 + 2y + 1 ) = 41 + 4 - 9 4(x-1)^2 - 9(y+1)^2 = 36 divide by 36 (x-1)^2/9 - (y+1)^2/4 = 1 If you ...
Monday, June 14, 2010 at 11:41pm by Reiny
Physics(Please respond)
A 12-kg crate is pushed up an incline from point A to point B. What is the change in the gravitational potential energy of the crate? Point A is 2.0m and point b is 7.0m I am not sure how to start this.
Thursday, May 31, 2012 at 4:49pm by Hannah
physics
A crate of mass m = 230 kg is pushed at constant speed up the frictionless ramp (θ = 29.0°) by a horizontal force F. What is the magnitude of F? What is the magnitude of the force exerted by the ramp on the crate?
Wednesday, October 20, 2010 at 9:56pm by jim
Physics please help its urgent i need help
b. frictional force on the truck equals ma if the crate did not move. If the force due to acceleration (ma) has overcome static friction, then the friction force will be μkmg (when the crate is sliding). To determine if the crate started to slide see (c) below. (c) The ...
Thursday, February 16, 2012 at 10:07pm by MathMate
Physics
A 19 kg wooden crate is dragged across the driveway. The coefficient of kinetic friction between the wood and concrete is 0.64. A. What is the horizontal force needed to drag the crate uniformly? B. Give a possible value for the coefficient of state friction.
Tuesday, November 24, 2009 at 10:21am by Jessica
algebra
(√x)^2 = x by definition. so, (4√41)^2 = (4^2)(√41)^2 = 16*41 = 656
Tuesday, October 2, 2012 at 2:15am by Steve
phy
(a) Calculate the acceleration of the system. (b) Calculate the force that each crate exerts on the other (c) Repeat with the crates reversed. fIND ACCELERATION AND CRATE FORCE.
Sunday, September 12, 2010 at 10:13pm by AMI
physics
work = force * distance. The force comes from the weight of the crate, equal to the mass of the crate (given as 30.0kg) multiplied by gravitational acceleration, 9.81m/s/s. You are given the distance, 15.0m. W = F*d W = ?
Friday, September 18, 2009 at 9:21am by Marth
Geometry
Complimentary angles add up to 90*. so 90-8=82 and 82/2 (b/c there's 2 x's) is 41. so the two angles are 41 and 49, the smaller one being 41*.
Thursday, January 17, 2008 at 10:34pm by Mischa
Physics, science,
I'm desperate Please help 2. A bird, starting from rest, accelerates at 3 m/s2 north for 5 seconds. It then sees the rest of its flock and turns due east accelerating from its previous speed to 20 m/s in 2 seconds. A. What is the velocity of the bird after the initial leg...
Friday, October 12, 2012 at 4:14pm by Bri
Chemistry
Need help with this-- 'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of density 45. .01 of a meter Column II: a. grams b. grams/cm^3 c. Kelvin d. milli e. ...
Tuesday, October 19, 2010 at 1:57pm by mysterychicken
Physics
I keep on getting the wrong answer I don't know if there is even static friciton in this problem in the begining before the rope snaps or not and if so if it must be equal to the Mu they give because there is only one but you can't have the same values for both ...
Friday, September 25, 2009 at 8:10pm by Physics
Physics
I keep on getting the wrong answer I don't know if there is even static friciton in this problem in the begining before the rope snaps or not and if so if it must be equal to the Mu they give because there is only one but you can't have the same values for both ...
Friday, September 25, 2009 at 6:46pm by Physics
physics
A 1,080-N crate is being pushed across a level floor at a constant speed by a force of 290 N at an angle of 20.0° below the horizontal, as shown in the figure (a) below. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 290-N force...
Tuesday, October 2, 2012 at 6:04pm by monic
college math
Let the volume of 52 proof to be added be x L so .26x + .41(1) = .33(1+x) or 26x + 41 = 33(1+x) 26x + 41 = 33 + 33x 8 = 7x x = 8/7 = 1.143 L check my arithmetic
Friday, April 5, 2013 at 11:39am by Reiny
physics
The distance between them is reduced at a rate 12 m/s, and they meet after 100/12 = 8.333 s. At that time, the slower runner is 5 * 8.333 = 41.67 m from his starting point. As a fraction, that is 125/3 meters.
Monday, June 13, 2011 at 10:30am by drwls
physics
A crate of oranges slides down an inclined plane without friction. If it is released from rest and reaches a speed of 4.883 m/s after sliding a distance of 2.01 m, what is the angle of inclination of the plane with respect to the horizontal? Please note: Give your answer in ...
Friday, March 2, 2012 at 1:03pm by lissa
PHYSİCS I
A crate of oranges slides down an inclined plane without friction. If it is released from rest and reaches a speed of 4.883 m/s after sliding a distance of 2.01 m, what is the angle of inclination of the plane with respect to the horizontal? Please note: Give your answer in ...
Thursday, March 1, 2012 at 6:07am by ADRİAANA
Math
Substitution Method: Eq1: X + 10Y = 41. Eq2: X + 9Y = 37. In Eq1, solve for X and get: X = -10Y + 41, In Eq2,substitute -10Y + 41 for X: (-10Y+41) + 9Y = 37, -Y = 37 - 41 = -4, Y = 4. In Eq1, substitute 4 for Y: X + 9*4 = 37, X = 37 - 36 = 1. Solution Set = (X,Y) = (1,4).
Saturday, July 2, 2011 at 7:21pm by Henry
Physics
A crate of mass 59 kg is attached to one end of a string, and the other end of the string runs over a pulley and is held by a person as in the figure below. If the person pulls with a force of 94 N, what is the crate's acceleration?
Wednesday, January 30, 2013 at 7:36pm by Josh
Physics
Yah i got another question a large crate is placed on the bed of a truck but is not tied down as the truck accelerates forward the crate slides across the bed until it hits the tailgate explain what causes this i'm completley lost
Monday, February 2, 2009 at 6:13pm by Physics
economics
GDP per capita in the U.S. was approximately $41,000 in 2005, what will it be in the year 2015 in GDP per capita grows each year by A) 0% B) 2% C)4% Use algebra. a) 41,000 b) 41,000*((1.02)^10) c) 41,000*((1.04)^10)
Monday, January 29, 2007 at 7:40pm by sheela
physics
Does the force push the 75 kg crate in the direction of the 113 kg crate, thereby moving both of them? That should have been made clear. If so, the total friction force is Ff1 + Ff2 = (75+113)*(0.15)*g = 276 N The net force accelerating both crates is then Fnet = 727 - 276 = ...
Monday, November 22, 2010 at 9:29pm by drwls
physcial science
one half second after starting from rest, a free falling oblect will have a speed of about what?
Monday, February 11, 2008 at 5:29pm by Anonymous
Physics
A ball falling from rest is located 45 m below its starting point 3.0 s later. Assuming that its acceleration is uniform, what is its value?
Monday, February 11, 2008 at 8:16pm by Lucy
statistics
A researcher wants to determine if two brands of cigarettes contain the same amount of nicotine. The data is shown in the table. With a significance level of 0.05 to that conclusion can be reached. Set the interval for a confidence of 95% Sample A: 40.3 37.5 37 41.7 29.8 33.5 ...
Sunday, January 23, 2011 at 1:41pm by Jose
statistics
A researcher wants to determine if two brands of cigarettes contain the same amount of nicotine. The data is shown in the table. With a significance level of 0.05 to that conclusion can be reached. Set the interval for a confidence of 95% Sample A: 40.3 37.5 37 41.7 29.8 33.5 ...
Sunday, January 23, 2011 at 3:13am by Jose
Math
The point is in the 1st quadrant, so all our ratios will be positive r^2 = 63^ + 280^2 = 82369 r =√82369 = 287 sinA = y/r = 280/287 = 40/41 , then cscA = 41/40 cosA = x/r = 63/287 = 9/41 , then secA = 41/9 tanA = y/x = 280/63 = 40/9 , then cotA = 9/40
Monday, February 11, 2013 at 7:59am by Reiny
Physics
In its new equilibrium position, the rope is inclined to vertical by an angle arcsin theta = 4.9/14 = 20.49 degrees In the process, the crate is raised a distance delta Y = 14 m (1 - cos theta) = 0.886 m 1. Rope tension T is given by T cos theta = Mg Solve for T The applied ...
Saturday, October 27, 2007 at 8:26pm by drwls
Physics
A 1200-N crate is being pushed across a level floor at a constant speed by a force of 260 N at an angle of 20.0° below the horizontal. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 260 N force is instead pulling the block at an...
Sunday, September 18, 2011 at 9:01pm by Elaine Jetton
physics
A 40.0 kg crate is initially moving with a velocity that has magnitude 4.09 m/s in a direction 37.0 ^\circ west of north. How much work must be done on the crate to change its velocity to 5.49 m/s in a direction 63.0 ^\circ south of east?
Sunday, February 19, 2012 at 1:18pm by Colton
macroeconomics
Suppose that France and Denmark both produce oil and olives. Frances’s opportunity cost of producing a crate of olives is 4 barrels of oil, while Denmark’s opportunity cost of producing a crate of olives is 7 barrels of oil. By comparing the opportunity cost of ...
Sunday, February 5, 2012 at 2:30pm by ann
physics
a crate weighing 3500 newton down an inclined plane at constant speed. The plane is 7.5 meter long. Its height is 3.0 meter. What is the coefficient of sliding friction between the crate and the inclined plane?
Monday, December 5, 2011 at 10:52pm by xander
physics
A cable is lifting a construction worker and a crate The weights of the worker and crate are 915 and 1430 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. what is the tension in the cable below the worker? what is it above the worker?
Saturday, December 4, 2010 at 1:26am by hy
physics
A horizontal force of 142 N is used to push a 47.0 kg packing crate a distance of 6.00 m on a rough horizontal surface. The acceleration of gravity is 9.81 m/s2 . If the crate moves with constant velocity, calculate a) the work done by the force. Answer in units of J b) the ...
Wednesday, October 12, 2011 at 4:11am by #!
physics
A horizontal force of 142 N is used to push a 47.0 kg packing crate a distance of 6.00 m on a rough horizontal surface. The acceleration of gravity is 9.81 m/s2 . If the crate moves with constant velocity, calculate a) the work done by the force. Answer in units of J b) the ...
Wednesday, October 12, 2011 at 4:11am by #!
6th Grade Math
A rectangular packing crate that is 3 feet wide, 4 feet high, and 6 feet long is used to ship jewelry boxes that are 1 foot wide, 1foot long, and 1 foot high. V=lwh. What is the volume of the rectangular packinging crate? I think it's 72 cubic feet. IS that correct? Also...
Thursday, April 28, 2011 at 8:29pm by Math..Please Help!
phy
Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15.
Sunday, September 12, 2010 at 10:13pm by ami
phy
Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15.
Sunday, September 12, 2010 at 3:50pm by ami
Geometry
There is only one pair of equal angles, so the number of triples which are isosceles is 3 that is, 23 23 35, 23 23 41, and 23 23 113 total number of triplets: 1. 23 not in the triple --- 1 2. one 23 --- choose 2 from the remaining 3 , C(3,2) = 3 3. two 23's --- 3 a total ...
Sunday, July 24, 2011 at 1:17pm by Reiny
math
It depends upon the order of operation, or (in other words) where you put the parentheses. For example, [(240/20)*6] -13 +41 = 72 -13 +41 = 100 but (240/20)*(6-13+41) = 12 * 34 = 4080
Friday, August 26, 2011 at 5:37am by drwls
arithmetic
Convert to inches, then use a ratio. 5'2' = 62" 3' = 36" 3'5" = 41" 62:36 = x:41 62/36 = x:41 Cross multiply and solve for x.
Friday, February 4, 2011 at 5:54pm by helper
physics
for starting from rest and moving in a straight line,runner achieves a velocity of 7m/s in a time of 2 seconds .what is the average acceleration of the runer.
Thursday, January 20, 2011 at 4:30pm by mohamed
Physics
A car is stopped at a traffic light. It then travels along a straight road so that its distance from the light is given by x(t) = bt2 - ct3, where b = 2.60 m/s2 and c = 0.150 m/s3. (a) Calculate the average velocity of the car for the time interval t = 0 to t = 8.0 s. m/s (b) ...
Friday, February 4, 2011 at 7:53pm by Anonymous
Maths
45 Here's why: If first digit is k, middle is k+i, last is i. Max k+i is 9, so i ranges from 0 to 9-k So, there are 9 numbers starting with 1, 8 starting with 2, ... 1 starting with 9 sum of numbers from 1 to 9 is 9*10/2 = 45
Tuesday, September 18, 2012 at 2:38pm by Steve
Calculus
A company is designing shipping crates and wants the volume of each crate to be 4 cubic feet, and the crate's base to be a square between 1 and 1.5 feet per side. If the material for the bottom costs $5, the sides $3 and the top $1 per square foot. What dimensions will ...
Monday, November 15, 2010 at 10:03pm by MEG
Please help me here!!! Maths
(x^2-6x-15)=e^5 e^5 is approximately 148.41 so x^2-6x=148.41-15 x^2-6x = 133.41 x-6x = sqrt(133.41) -5x = 11.55 x = 11.55/-5 x = 2.31
Thursday, April 4, 2013 at 1:20am by Sunny
physics
A car is stopped at a traffic light. It then travels along a straight road so that its distance from the light is given by x(t) = bt2 – ct3, where b = 2.40m/s2 and c = 0.120m/s3. (a) Calculate the average velocity of the car for the time interval t = 0 to t = 10.0 s. (b) ...
Tuesday, October 12, 2010 at 1:34am by Anonymous
Physics
If the create has a mass of 90 kg and is 1.6 {\rm m} tall and 0.80 {\rm m} in depth and width, what is the minimum force needed to make the crate start tipping? (Assume the center of mass of the crate is at its center and static friction great enough to prevent slipping.)
Sunday, November 28, 2010 at 6:54pm by Danny
physics
A 1,440-N crate is being pushed across a level floor at a constant speed by a force vector F of 380 N at an angle of 20.0° below the horizontal, as shown in the figure (a) below. (a) What is the coefficient of kinetic friction between the crate and the floor? μk...
Friday, October 12, 2012 at 7:18pm by Uzy
Physics
A 1,500 kg crate hangs motionless from a crane cable. What is the tension in the cable? Ignore the mass of the cable. Suppose the crane accelerates the crate upward at 1.2 m/s2. What is the tension in the cable now?
Tuesday, October 5, 2010 at 5:47pm by Anonymous
physics
A winch is used to drag a 375 N crate up a ramp at a constant speed of 75 cm/s by means of a rope that pulls parallel to the surface of the ramp. The rope slopes upward at 33 degreesabove the horizontal, and the coefficient of kinetic friction between the ramp and the crate is...
Sunday, February 26, 2012 at 8:29pm by dillion
Physics
Initially sliding with a speed of 2.3 m/s, a 2.0 kg block collides with a spring and compresses it 0.41 m before coming to rest. What is the force constant of the spring?
Tuesday, March 9, 2010 at 6:27pm by Abby
Science
What minimum acceleration must it engines produce if the airoplane has become airbome after starting from rest and travelling a distance of 300m on the runway
Sunday, February 27, 2011 at 11:54am by Nobuhle
College Physics
A 0.30-m-radius automobile tire rotates how many radians after starting from rest and accelerating at a constant 2.0 rad/s^2 over a 5.0-s interval?
Tuesday, June 8, 2010 at 10:35pm by Ashley
physics
A 1,5000kg car starting from rest is accelerated by a force of 2,oooN during the first 15seconds of its motion. Find the speed at the end of thats time
Thursday, January 3, 2008 at 4:31pm by jazz
physics
If the coefficient of kinetic friction between a 37 kg crate and the floor is 0.31, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if µk is zero?
Sunday, November 14, 2010 at 3:40pm by Hannah
PHYSICS
An applied force accelerates a 50-kg crate along a frictionless floor from rest to 5 m/s.The work performed by this force is most nearly 125 J 250 J(x) 500 J 625 J 1,250 J Can someone please explain this to me and help? I thought it was 250 J but my calculation was wrong.
Saturday, June 2, 2012 at 11:50am by Chris
physics
Rocket-powered sleds are used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 444 m/s in 1.80 s and can be brought to a stop again in 2.15 s. (a) Calculate the acceleration of the sled when starting, and compare it to the ...
Tuesday, September 21, 2010 at 10:21pm by Anonymous
college physics
Two workers are loading crates onto a pick up truck. Worker 1 lifts his crate straight up from the ground to the truck. Worker 2 slides his crate up a ramp which has frictionless rollers. Which statement is true about the work being done on the crate? a. Worker 1 does more ...
Tuesday, October 5, 2010 at 11:35am by matt
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
If the coefficient of kinetic friction between a 35 kg crate and the floor is 0.30, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if μk is zero?
Tuesday, December 4, 2012 at 10:08am by Henry
physics
if the coefficient of kinetic friction between a 35-kg crate and the floor is 0.30, what horizontal force is required to move the crate at a steady speed across the floor? what horizontal force is required uk is zero?
Saturday, July 30, 2011 at 8:44am by mariz
Algebra
V = Vo + g*t t = (V-Vo)/g = (0-45)/-32 = 1.41 s. ht. = 6 + 45*1.41 - 0.5*32*(1.41)^2 = 37.64 Ft.
Monday, April 22, 2013 at 10:16pm by Henry
math
41 degrees. 37 minus 41 equals -4 right??
Tuesday, November 27, 2012 at 5:11pm by Anonymous
Physics
An 7.5 crate is pulled 5.4 up a 30 degree incline by a rope angled 19 degrees above the incline. The tension in the rope is 130N and the crate's coefficient of kinetic friction on the incline is 0.24. How much work is done by tension? by gravity? by the normal force?
Wednesday, November 7, 2012 at 1:04am by Anonymous
trig
if sin 41'=m. write m in terms of cos 41'
Monday, April 8, 2013 at 9:24am by thapelo
Physics
KE= 0.0046 x 41 x 41 x 0.5 = 3.8663 Joules
Sunday, January 23, 2011 at 11:33am by Graham
math
equation pete and tom sold 41cds and tom sold 9more,.how many did pete sold. how do i get the anwser, It isn't clear to me how many Tom sold? IF he sold nine more than Pete then X = # Pete sold X + 9 = # Tom sold X + X + 9 = 41. Solve for X. Post your work if you get stuck...
Friday, August 25, 2006 at 2:32pm by Haydee
math
order from least to greatest 41.2 41.42 40.12
Thursday, February 23, 2012 at 4:17pm by ciara
physics
Two thin rectangular sheets (0.06 m 0.52 m) are identical. In the first sheet the axis of rotation lies along the 0.06 m side, and in the second it lies along the 0.52 m side. The same torque is applied to each sheet. The first sheet, starting from rest, reaches its final ...
Friday, June 1, 2007 at 6:07pm by meredith
physics
A 0.395-kg blue bead slides on a frictionless, curved wire, starting from rest at point in the figure below, where h = 1.50 m. At point , the blue bead collides elastically with a 0.650-kg green bead at rest. Find the maximum height the green bead rises as it moves up the wire.
Thursday, October 18, 2012 at 12:38am by Alex
phsyics HELP PLEASE
total weight on floor = 9.8*(40.6+69.1) Newtonns which is the force up from the floor on the crate. for the crate to the person, the person's weight which is 9.8*69.1 Newtons
Tuesday, November 29, 2011 at 9:25am by Damon
11th grade
If the coefficient of kinetic friction between a 30 kg crate and the floor is 0.35, what horizontal force is required to move the crate at a steady speed across teh floor? wHAT HORIZONTAL FORCE IS REQUIRED IF MUK IS ZERO?
Tuesday, January 19, 2010 at 9:52pm by Alyssa
math
s + s + 6 + s + 11 = 41 3s + 17 = 41 3s = 41 - 17 3s = 24 s = 8 Sue is 8 Leah is 14 John is 19
Monday, October 18, 2010 at 5:37pm by Ms. Sue
Physics
M1 = 2M2 M1*V1^2 = (1/2)M2*V2^2 = (M1/4)V2^2 V2 = 2 V1 M1*(V1+3.41)^2 = M2*(V2+3.41)^2 = (M1/2)*(2V1 +3.41)^2 Cancel the M1's and solve this quadratic equation for V1: (V1 +3.41)^2 = (1/2)(2V1 + 3.41)^2
Tuesday, February 8, 2011 at 11:19pm by drwls
physics
momentum is conserved 41 * 7 = v * (41 + 30)
Wednesday, September 26, 2012 at 4:25pm by Scott
math plz help
D = N(N-3)/2. D = 41(41-3)/2 = 779 Diagonals.
Sunday, April 8, 2012 at 3:28pm by Henry
math
123/3=41. 41*2=82 students
Wednesday, March 7, 2012 at 9:12pm by John
physics
an airplane has a takeoff speed of 80 meters per second which it reaches 35 seconds after starting from rest. What is the minimum length of the runway?
Tuesday, September 29, 2009 at 1:10am by shirley
Urgent Physics!
A top starting from rest is spun for 3 seconds achieving an angular speed of 20 rad/s. How many radians has it gone through in this time? (a is constant)
Thursday, November 20, 2008 at 8:51pm by Phill
Chemistry
Can someone please help me with these: 3. Dissolving salt in water is a physical change- False? 'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of density 45. ....
Tuesday, October 19, 2010 at 3:16pm by mysterychicken
Math
cars ---- x bikes ----y x+y = 52 4x + 2y = 186 or 2x + y = 93 subract: x = 41 then 41 + y = 52 ---> y = 11 There are 41 cars and 11 bikes.
Wednesday, February 20, 2013 at 9:13pm by Reiny
physics
Two packing crates of masses 7.88 kg and 4.62 kg are connected by a light string that passes over a frictionless pulley as in the figure below. The 4.62 kg crate lies on a smooth incline of angle 40.0°. a) Find the acceleration of the 4.62 kg crate
Friday, October 5, 2012 at 12:09am by Anonymous
pre algebra
52= P-41 SO move P to the other side making it +41. P= 91
Friday, November 13, 2009 at 7:03pm by JEFF BOMB
math
Are you supposed to find out what a is? If so, then -8a +6a = 1 - 42 -2a = -41 a = 41/2 (20 1/2)
Sunday, November 9, 2008 at 3:58pm by drwls
physics
i've gotten 41.57 41.92 and 5.68 when i only used the mass of the bullet
Thursday, February 28, 2008 at 5:11pm by rory
physics
a skateboarder starting from rest accelerates down a ramp at 2m/s squared for 3sec. what is the final speed of the skateboarder?
Thursday, October 25, 2012 at 6:45pm by danielle
physics
A skateboarder, starting from rest, rolls down a 11.5-m ramp. When she arrives at the bottom of the ramp her speed is 6.95 m/s.
Tuesday, September 20, 2011 at 7:52pm by Anonymous
physics
Starting from rest a car undergoes a constant acceleration of 6 m/s2. How far will the car travel in the first second?
Monday, October 26, 2009 at 5:36pm by Anonymous
PHY 101
A 0.425-kg blue bead slides on a frictionless, curved wire, starting from rest at point where h = 1.50 m. At point , the blue bead collides elastically with a 0.675-kg green bead at rest. Find the maximum height the green bead rises as it moves up the wire. PLEASE HELP I HAVE...
Saturday, October 6, 2012 at 8:01pm by tom
Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>
For Further Reading
