Saturday

December 3, 2016
Number of results: 35,969

**Physics**

A 8.1 kg stone is at rest on a spring. The spring is compressed 12 cm by the stone. The stone is then pushed down an additional 27 cm and released. To what maximum height (in cm) does the stone rise from that position?

*August 19, 2010 by Liz*

**AP Physics**

you travel down the highways, starting from rest. You travel for 2 hours at a speed of 105 km/h. then you stop and eat your lunch for 30 minutes. Then you travel for 1.5 hours at 75km/hr. Make a distance vs time graph of this motion.

*September 7, 2011 by Anonymous*

**physics**

A bubble located 0.200m beneath the surface of a glass of beer rises to the top.the air pressure at the top of the glass is 1.01(10^5)pa.assume that the density of beer is the same as that of fresh water at 4 degrees celcius.if the temperature and number of moles of CO2 remain...

*April 6, 2012 by Neptoh*

**Trig**

Half Angle Identities cosx = 7/25 greater than 270 deg and less than 360 Determine cos 1/2x a. -7rt2/10 b. 7rt2/5 c.7/25 d.-4/5 I get 7rt2/5 Is this correct??

*January 2, 2012 by Don*

**Physics**

3 objects with masses m1=5kg, m2=10kg and m3=15kg are attached by massless string over two frictionless pulleys. The horizontal surface is frictionless and system is released from rest. Using energy concept calculate m3 speed after it has moved down 0.4m

*June 5, 2015 by Akosua*

**Right triangle (tri)**

ladder 13 feet long . if she set the base of the ladder on the level ground 5 feet from the side of a houes, how many feet above the ground will the top of the ladder be when it rest against the house?

*December 17, 2009 by pat*

**Right triangle (tri)**

ladder 13 feet long . if she set the base of the ladder on the level ground 5 feet from the side of a houes, how many feet above the ground will the top of the ladder be when it rest against the house?

*December 17, 2009 by pat*

**12th Calculus**

a 13-ft ladder is leaning against a wall. suppose that the base of the ladder sides away from the wall at the constant rate of 3ft/sec 1. explain why the motion of the two ends of the ladder can be represented by the parametric equations: x1(t)=3t, y2(t)=0 x2(t)=0, y2(t)= ...

*November 20, 2008 by tt*

**Physics **

h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 7 3 9 3 5 9 3 ok heres the problem in a picture h t t p : / / i m g 1 9 2 . i m a g e s h a c k . u s / i m g 1 9 2 / 4 5 0 0 / c a p t u r e x x w . j p g ok I called the 4 kg block m3 and the 2 ...

*February 28, 2010 by Kate*

**simple physics problem**

A crate sliding down a ramp reaches the bottom of the ramp and slides across a flat floor. At the instant shown, the crate has a speed of v= 8.90 m/s. The crate comes to a stop after a distance x= 13.0m . What is the coefficient of kinetic friction between the crate and the ...

*August 29, 2010 by Anonymous*

**Physics**

At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.3 m/s2. At the same instant a truck is 11.7 m down the road and traveling with a constant speed of 10.4 m/s. (a) How far beyond the traffic signal will the automobile ...

*October 24, 2012 by Tommy*

**AP Psychology**

how does top-down processing leave us vulnerable to illusions? what is the role of attention in behavior? How does experience and culture influence perceptual processes? (ex: perceptual set, context efffects) how do common sensory disorders, like vision or hearing loss, affect...

*January 9, 2011 by Anonymous*

**calculus**

The troough down the center of the ccattle barn is 40 cm wwide at thhe top and 20 cm at the botttom .it is 30 cm deep and 8 m long . It iis filled at a rate of 10 dm3/min. What is the rate of rise of water level . I tried it and me ans is pretty close but not exact so just ...

*March 16, 2011 by Mehak*

**Dynamics**

A 1500 kg automobile is traveling upto 20 deg inclined at a speed of 6 m/sec. If the driver wishes to stop his car in a distance of 5m,determine the frictional force at pavement which must be supplied by rear wheels.

*July 30, 2012 by benny*

**Physics**

A stone that starts at rest is in free fall for 8.0 s. a.Calculate the stone's velocity after 8.0 s. b. What is the stone's displacement during this time? Given: t = 8.0 s a = 9.81 m/s^2 For a, in order to calculate the velocity, should i use d = vit + 1/2 at^2 and only use ...

*December 25, 2009 by Priscilla*

**Physics**

James joule measures temperature of the water at the top and bottom of the waterfalls. If one of these waterfalls is 55m high, and all gravitation energy of the water is at the top of the falls. What temperature difference would be between the water at the top and bottom? (...

*November 25, 2013 by Sam*

**Physics**

James joule measures temperature of the water at the top and bottom of the waterfalls. If one of these waterfalls is 55m high, and all gravitation energy of the water is at the top of the falls. What temperature difference would be between the water at the top and bottom? (...

*November 25, 2013 by Sam*

**Maths**

A ship is sighted from the top of a lighthouse. The angle of depression from the lighthouse to the top of the ship is 45 degrees. The distance from the top of the lighthouse directly to the ship is 4 miles. Calculate the horizontal distance of the ship from the bottom of the ...

*January 7, 2016 by Rose *

**physics**

Suppose the elevator now accelerates down- ward at a constant rate of 0.13 g. What is the ratio of the new scale reading to the value W of the scale reading when the elevator is at rest?

*November 1, 2010 by Miranda*

**physics**

Consider a ball that picks up a speed of 3 m/s each second when its rolls from rest down an inclined plane. If the ball takes 4 seconds to reach the bottom, its speed at the bottom will be?

*June 22, 2011 by Alli*

**physics**

The weightless horizontal bar in the figure below is in equilibrium. Scale B reads 4.00 kg (N.B. as you know, the scale should read N, but no one told the manufacturer). The distances in the figure (which is not to scale) are: D1 = 9.0 cm, D2 = 8.0 cm, and D3 = 6.5 cm. The ...

*April 10, 2012 by James*

**Mathamatics**

A walk up a hill starts at a car park on the 100m contour and climbs steadily to a summit at 240 m. On a map with scale 1:25 000 the distance along the path from the car park to the summit is 9.6 cm. Choose the three true statements from the following. Options A) The distance ...

*June 4, 2010 by S Rey*

**Physics**

A bullet with a mass of 10 imbeds itself in a wooden block of mass 3990g and is free to move. If the speed of the block and bullet together is 50 cm/s just after the impact what was the original speed of the bullet ?

*November 21, 2012 by Mary Grace *

**Physics-Help Please!**

a 25gram bullet is fired upward through a .36kg block. the block goes up 17cm in the air and the bullet goes up 24m into the air. What is the initial velocity of the bullet?

*October 12, 2013 by Sara*

**Physics **

A 70kg wannabe stuntman at the edge of a roof top jumps vertical up with a speed of 4m/s and falls on a trampoline 2meters below where he started. If the trampoline acts like a Hooke's spring and does a maximum extension of 0.284m going down towards ground, what is the spring ...

*September 21, 2016 by Veronica *

**Physics **

A 70kg wannabe stuntman at the edge of a roof top jumps vertical up with a speed of 4m/s and falls on a trampoline 2meters below where he started. If the trampoline acts like a Hooke's spring and does a maximum extension of 0.284m going down towards ground, what is the spring ...

*September 21, 2016 by Veronica *

**Calc.**

A ladder 25ft long is leaning against the wall of a house. The ladder is pulled away from the wall at a rate of 2 ft per second. How fast is the top of the ladder moving down the wall when its base is 7ft from the wall?

*November 1, 2010 by Preston*

**Physics Grade12**

two balls are juggled so that each ball is in the air for 1.800s, and the second ball is thrown up at the instant the first starts down. Find the height above the throwing hand where the two balls pass eachother, assuming gEarth=9.800m/s^2 I started with d=vt but we don't have...

*February 25, 2016 by Bridget*

**physics**

A block accelerates at 3.3 m/s^2 down a plane inclined at an angle of 26 degrees.Find micro(k) between the block and the inclined plane. The acceleration of gravity is 9.81 m/s^2. This is my work but i am not sure if it is correct: sum of forces on x axis= -kinetic friction + ...

*July 14, 2011 by alexa*

**Physics**

If the co-efficient of static friction for a 5 kg rubber block is 0.3 how much more force is required to lift the block than to start it sliding? I worked out force to get it sliding is 14.7 N (5*9.8*.3) but not sure about the upward force to lift it.

*April 1, 2009 by CC*

**physics**

A 0.0160-kg bullet traveling horizontally at 396 m/s strikes a 3.95-kg block of wood sitting at the edge of a table. The bullet is lodged into the wood. If the table height is 1.06 m, how far from the table does the block hit the floor?

*February 8, 2010 by Sarah*

**physics**

A bullet of mass 0.08kg is fired horizontally into a 10kg block which is free to move. If both bullet and block move with a velocity of 0.6m/s after the impact, find the velocity with which the bullet hits the body

*February 7, 2016 by Sarah*

**Physics**

A rectangular conducting homogeneous (which means the material is the same throughout) block has dimensions 1cm x 2cm x 3cm . A voltage V is applied between all opposite faces of the block and the corresponding currents were recorded. What is the maximum current measured in ...

*March 20, 2013 by Maria*

**PHYSICS**

A rectangular conducting homogeneous (which means the material is the same throughout) block has dimensions 1cm×2cm×3cm . A voltage V is applied between all opposite faces of the block and the corresponding currents were recorded. What is the maximum current measured in Amps...

*March 21, 2013 by Anonymous*

**physics**

A rectangular conducting homogeneous (which means the material is the same throughout) block has dimensions 1cm×2cm×3cm . A voltage V is applied between all opposite faces of the block and the corresponding currents were recorded. What is the maximum current measured in Amps...

*March 22, 2013 by rita*

**Physics**

A rectangular conducting homogeneous (which means the material is the same throughout) block has dimensions 1cm×2cm×3cm . A voltage V is applied between all opposite faces of the block and the corresponding currents were recorded. What is the maximum current measured in ...

*March 22, 2013 by Jack*

**Science**

A 450-g block is attached to a spring of spring constant 45 N/m and is in simple harmonic motion on a frictionless surface with an amplitude of 7.5 cm. A second identical block, moving at 12 m/s in line with the spring, strikes the first one when the spring is at its maximum ...

*June 9, 2016 by Lucy*

**physics**

A 50 kg box hangs from a rope. What is the tension in the rope if a. The box is at rest? b. The box has vy = 5.0 m/s and is slowing down at 5.0 m/s2 ?

*September 29, 2014 by aithusa20*

**Physics**

A 52 kg skier is at the top of a slope, as in the figure. At the initial point A, the skier is 12.4 m vertically above the final point B. The acceleration of gravity is 9.81 m/s2 .Find the difference in potential energy if the zero level is midway down the slope, at a height ...

*January 25, 2011 by Sangita*

**algebra**

a rock is thrown witha velocity of 20 meters per second from the top of a 24 meter high cliff and it misses the cliff on the way back down. when will the rock be 10 meters from the water below? round your answer to two decimal places

*March 12, 2013 by Anonymous*

**Algebra **

a rock is thrown upward with a velocity of 20 meters per second from the top of a 40 meter high cliff, and it misses the cliff on the way back down. when will the rock be 7 meters from the water, below? round your answer to two decimal places

*January 26, 2014 by Anonymous*

**Algebra**

A rock is thrown upward with a velocity of 15 meters per second from the top of a 49 meter high cliff, and it misses the cliff on the way back down. When will the rock be 3 meters from the water, below? Round your answer to two decimal places.

*August 29, 2015 by pam*

**Algebra **

A rock is thrown upward with a velocity of 21 meters per second from the top of a 48 meter high cliff, and it misses the cliff on the way back down. When will the rock be 7 meters from the water, below? Round your answer to two decimal places.

*September 21, 2016 by Matthew*

**physics**

Jennifer (mass 58.0 kg) is standing at the left end of a 13.0 m long 594.0 kg cart that has frictionless wheels and rolls on a frictionless track. Initially both Jennifer and the cart are at rest. Suddenly, Jennifer starts running along the cart at a speed of 5.70 m/s relative...

*January 22, 2010 by Matthew*

**Physics**

A disk starts at rest and accelerates with a constant angular acceleration α. After the disk completes one complete revolution, what is its angular velocity? ang.acc. = (ang.v. squared) / angle w = sqrt(angle x ang.acc.) = sqrt (2pi x ang.acc) However, the test shows that...

*April 3, 2015 by Liina*

**SCIENCE PHYSICS**

A Sky-diver(falling vertically)starts from rest at time t=0.His acceleration is non-uniform until be reaches a steady speed of 50m/s at t=10s.He open his parachute at t=20s and decelerates until t=25s.From t=25s he falls at a steady speed of 5m/s.Draw the speed-time graph for ...

*May 19, 2016 by SUMAN DAS*

**Statistics**

I'm stumped on this question. A teacher informs her history class that a test is very difficult, but the grades would be curved. Scores for the test are normally distributed with a mean of 25 and a standard deviation of 5. If the grades are curved according to the following ...

*March 15, 2011 by Norilyn*

**physics**

an ice skater starts her spin with her arms stretched straight out. She then pulls her armsin close to her body. Assume her moment of inertia when her arms are stretched out is 3.0 kg-m sqaured and it is 2.0 kg-m squared when she pulls them in tight. If she starts her spin at ...

*December 9, 2014 by Billy Bundles*

**physics**

Suppose that 90 g of hot water at a temperature of 75 degrees C is poured into a cavity in a very large block of ice at 0 degrees C. (a) What will be the final temperature of the water in the cavity? (b) What mass of ice must melt in order for the water to cool down to the ...

*April 7, 2011 by sara*

**physics**

A 48 kg skier starts from rest at a height of H = 28 m above the end of the ski-jump ramp. As the skier leaves the ramp, his velocity makes an angle of 28° with the horizontal. Neglect the effects of air resistance and assume the ramp is frictionless. (a) What is the maximum ...

*November 2, 2012 by joshwa*

**Physics**

A police car is at rest beside a road, looking for speeders. A car passes going at a constant speed of 30.0 m/s. The police car starts up 4 seconds later and accelerates at 2 m/s sq. until it reaches a speed of 40m. If the police car maintains this speed until it catches up ...

*December 18, 2012 by Emily*

**Guidance and Discipline**

In Ms.Edwards' two-year-old room,Brenden is working hard to build a block tower. The tower falls each time Brenden tries to stack the third block onto the second block. After three tries, Brenden throws the blocks wildly and begins to scream and cry. Which one of the following...

*February 19, 2013 by Sandra*

**Physic**

A 61-kg skier, coasting down a hill that is an angle of 23 to the horizontal, experiences a force of kinetic friction of magnitude 72N. The skier's speed is 3.5m/s near the top of the slope. Determine the speed after the skier has travelled 62m downhill. Air resistance is ...

*August 14, 2013 by Tristan*

**physics **

An electron accelerated from rest through a potential difference of 50v acquires a speed of 4.2x10^6m/s write down the speed that a potential difference of 200v would produce ?

*June 12, 2016 by abdalla *

**physics**

A 50 kg uniform ladder, 5.0 m long, is placed against a smooth wall at a height of h = 3.7 m. The base of the ladder rests on a rough horizontal surface whose coefficient of static friction is 0.40. An 80 kg block is suspended from the top rung of the ladder, just at the wall...

*October 29, 2012 by george *

**physics**

A 50 kg uniform ladder, 5.0 m long, is placed against a smooth wall at a height of h = 3.7 m. The base of the ladder rests on a rough horizontal surface whose coefficient of static friction is 0.40. An 80 kg block is suspended from the top rung of the ladder, just at the wall...

*November 16, 2012 by jenn*

**physcs**

A string is wrapped around a uniform solid cylinder of radius 3.10 cm, as shown in the figure. The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block has mass 16.3 kg, and the cylinder has mass 11.2 kg.

*November 30, 2009 by asefa*

**Chemistry Stoichiometry**

Sulfuric acid can dissolve aluminum metal according to the following reaction. Suppose you wanted to dissolve an aluminum block with a mass of 25.7 . How many grams of H2 gas would be produced by the complete reaction of the aluminum block?

*October 27, 2012 by Brianna*

**physics**

A pulley is suspended by a Cord (C). on one end of the pulley there is a 1.2 kg block and on the other is a 3.2 kg block.Determine the tension in this cord after the masses are released and before one hits the ground. Ignore the mass of the pulley and cords

*February 14, 2013 by Anonymous*

**martin Luther King High School**

ladder 13 feet long . if she set the base of the ladder on the level ground 5 feet from the side of a houes, how many feet above the ground will the top of the ladder be when it rest against the house?

*December 17, 2009 by pat*

**Physics**

A box of textbooks of mass 25.3 kg rests on a loading ramp that makes an angle (ALFA) with the horizontal. The coefficient of kinetic friction is 0.260 and the coefficient of static friction is 0.330 . A) As the angle (ALFA) is increased, find the minimum angle at which the ...

*November 18, 2006 by Jasijo*

**physics**

The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates about an axis through its left edge, and door B rotates about an axis through its center. The same force is applied perpendicular to each door at its right edge, and the force ...

*July 16, 2013 by john*

**physics**

The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates about an axis through its left edge, and door B rotates about an axis through its center. The same force is applied perpendicular to each door at its right edge, and the force ...

*April 14, 2014 by Anonymous*

**physics**

Years ago, a block of ice with a mass of about 22kg was used daily in a home icebox. The temperature of the ice was 0.0 degrees Celsius when delivered. As it melted, how much heat did a block of ice that size absorb? The latent heat of fusion of water is 3.34 x 10 ^ 5 J/kg. ...

*November 20, 2010 by Norah *

**science **

You measure the dimensions of a rectangular block of aluminum to determine its volume. It has the following dimensions. length = 10.27 cm; width = 4.92 cm; height = 1.53 cm Assuming that each of these measurements is accurate to the nearest 0.01 cm, find the volume of the ...

*February 3, 2014 by christina*

**physics**

A gun is mounted at the top of light house of height h. A similar gun is mounted in the boat in the sea. Both the guns can fire shots with speed upto under root 2gk, where k>h. What will be the area in which gun at the top can be gun in the boat, but gun in the boat cannot ...

*July 26, 2011 by Tillu*

**Calc**

The figure shows the graph of f(x)=xe^x, x greater than or equal to 0. figure: f(x) curve is drawn and under the max. point/ concave down curve there is an inscribed rectangle. with width from a(left) to b(right) and height up to a certain point of f(x). Let a > 0 and b >...

*February 14, 2016 by Betty*

**physics please help!**

Suppose that 90 g of hot water at a temperature of 75 degrees C is poured into a cavity in a very large block of ice at 0 degrees C. (a) What will be the final temperature of the water in the cavity? (b) What mass of ice must melt in order for the water to cool down to the ...

*April 8, 2011 by Dan*

**Math**

Person A starts walking SW froma point at a speed of 13m/s. Ten seconds later person B starts walking from the same point and travels east at 10m/s. After person B have been walking 30 seconds, approximately how far apart are the two?

*March 4, 2015 by elmemo*

**physics**

A 4.63-g bullet is moving horizontally with a velocity of +349 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*October 15, 2011 by riley*

**physics**

A 4.63-g bullet is moving horizontally with a velocity of +349 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*October 16, 2011 by riley*

**physics**

A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*November 4, 2011 by Meagan*

**physics**

A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*November 4, 2011 by Meagan*

**physics**

A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*November 4, 2012 by greg*

**Physics**

A 7.45-g bullet is moving horizontally with a velocity of +348 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*November 5, 2012 by greg*

**physics**

A 6.26-g bullet is moving horizontally with a velocity of +344 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is negligible. The ...

*March 27, 2014 by Anonymous*

**Pls help me now**

A 75g person on skis is going down a hill sloped at an angle 30.the coefficient of kinetic friction between the skis and the snow is 0.15.how fast is the skier going 10s after starting from rest?(answer=36m/s)

*November 6, 2011 by Henneh *

**Mechanics for A-level?**

A particle of mass m can just rest on a rough plane inclined at 30 degree to the horizontal without slipping down. show that the least horizontal force needed to maintain its position if the inclination is increased to 45 degree is 0.268mg.

*April 7, 2012 by Jat*

**calculus HELP!**

A person stands on a bridge that is 100 feet above a river. If she drops a pebble how fast is it moving after 2 seconds? How long does it take the pebble to reach the river below? She has another pebble that she tosses up with initial speed of 8 feet per second. It goes up, ...

*November 6, 2013 by Danielle*

**physics**

Apparent Weight. A physics student weighing 600 N stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 420 N . A )Find the magnitude of the acceleration of the elevator. B ) Find the direction of the acceleration of the elevator.( up or ...

*November 14, 2006 by Hadi*

**calculus**

With waht speed must a baseball be thrown upward from the ground in order to reach the top of the Washington Monment? (The top of the monument is 55o ft)

*November 16, 2010 by Anonymous*

**calculus**

With waht speed must a baseball be thrown upward from the ground in order to reach the top of the Washington Monment? (The top of the monument is 55o ft)

*November 16, 2010 by Anonymous*

**math**

the top will have a piece of marble 20 1/2 by 22 bordered by 3 1/4 inches of wood on all four sides. Give the overall dimension of the table top

*February 2, 2012 by melissa*

**physics**

There is a heat flow through a block of cross sectional area 21.5 cm2 and length 39 cm when the temperature difference of 18 degree Celsius is established across the block. Find the rate of heat flow through the block, assuming it is made of aluminium with thermal conductivity...

*October 11, 2010 by Anonymous*

**Math**

Warren walked 4 kilometers down east and then 5 kilometers down south. Next, he walked another 4 kilometers down east. Then he turned again, and walked 5 kilometers down south. He stopped there. To the nearest kilometer, how far is he from the starting point?

*February 16, 2016 by Ariel*

**college physics**

an automobile starts from rest and accelerates to a final velocity in 2 stages along a straight road. each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.0m/s^2. the magnitude of the car's velocity at the end of stage 2 is 2.5 ...

*October 5, 2008 by ksunhsine*

**Physics**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.7 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2....

*January 31, 2010 by Anonymous*

**physics**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.5 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2....

*May 26, 2010 by dd*

**physics**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.3 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2....

*September 7, 2010 by gabe*

**physics**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.03 m/s2. The magnitude of the car's velocity at the end of stage 2 is 4...

*October 3, 2011 by randy*

**physical**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.19 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2...

*September 9, 2012 by Anonymous*

**physics**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.84 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2...

*August 27, 2014 by Kristain*

**physics**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.12 m/s2. The magnitude of the car's velocity at the end of stage 2 is 3...

*September 3, 2014 by Anonymous*

**algebra**

Mary bought a red convertible for $14,000. She paid $1,000 down and borrowed the rest on a one year note at 15% interest. How much will she owe at the end of one year

*April 3, 2012 by ale*

**math**

the rim of a canyon is at an altitude of 45m. On a hike down into the canyon, a party of hikers stop for a rest 160m below the rim. They descend another 71m. What is their new altitude?

*July 5, 2012 by paula jones*

**physics**

A woman with mass of 63 kg stands at the rim of a horizontal table having a moment of inertia of 520 kg m2 and a radius of 1.5 m. The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then starts walking ...

*February 16, 2015 by Lexus *

**Physics**

A woman with mass of 57 kg stands at the rim of a horizontal table having a moment of inertia of 570 kg m2 and a radius of 1.5 m.The turntable is initially at rest and is free to rotate about a frictionless, vertical axis through its center. The woman then starts walking ...

*March 13, 2016 by Luhan*

**physics**

A 2.9 × 103 kg car accelerates from rest at the top of a driveway that is sloped at an angle of 16.0 with the horizontal. An average frictional force of 4.2×103 N impedes the car’s motion so that the car’s speed at the bottom of the driveway is 4.6 m/s. The acceleration...

*November 29, 2011 by Matt*

**physics**

A box is cubical with sides of proper lengths L1=L2=L3=2.0m when viewed in it own rest frame. If this block moves parallel to one of its edges with a speed of 0.80c past an observer, (a) What shape does it appear to have to this observer, and (b) What is the length of each ...

*May 29, 2007 by beth*

**11th grade**

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.3 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2....

*September 7, 2010 by gabe*