Sunday

October 4, 2015
**physics**

Assume that an intercontinental ballistic missile goes from rest to a suborbital speed of 6.50 km/s in 60.0 s (the actual speed and time are classified). What is its average acceleration in m/s2 and in multiples of g (9.80 m/s2 )?
*Thursday, September 11, 2014 by joe*

**physics**

A commuter backs her car out of her garage with an acceleration of 1.40 m/s2. (a) How long does it take her to reach a speed of 2.00 m/s? (b) If she then brakes to a stop in 0.800 s, what is her deceleration?
*Thursday, September 11, 2014 by joe*

**Physics**

1. An 80.0-kg astronaut is floating at rest a distance of 10.0 m from a spaceship when she runs out of oxygen and fuel to power her back to the spaceship. She removes her oxygen tank (3.0 kg) and flings it into space away from the ship with a speed of 15 m/s. At what speed ...
*Thursday, September 11, 2014 by Ryzza*

**Physics**

A ball is dropped from a roof of a building and strikes the ground in 3 seconds. If a second ball is thrown horizontally from the roof, it will hit the ground in:
*Thursday, September 11, 2014 by Josh*

**Physics**

A pebble is thrown horizontally from the top of a 25.0 m cliff and hits the ground 11.0 m from the edge of the cliff. a. How long will it take for the pebble to hit the ground? b. At what speed the pebble was thrown initially? c. How much is the horizontal component of the ...
*Wednesday, September 10, 2014 by Vera*

**physics**

A car makes a 257 km trip at an average speed of 40 km/h. A second car starting 1 h later arrives at their mutual destination at the same time. What was the average speed of the second car for the period that it was in motion? a=40 d=257 km I don't know where to start or ...
*Wednesday, September 10, 2014 by Makayla Bellamy*

**Physics**

Automotive engineers refer to the time rate of change of acceleration as the "jerk." Assume an object moves in one dimension such that its jerk J is constant. (a) Determine expressions for its acceleration ax(t), velocity vx(t), and position x(t), given that its ...
*Wednesday, September 10, 2014 by Lorine*

**Physics **

An 18-year-old runner can complete a 10.0-km course with an average speed of 4.39 m/s. A 50-year-old runner can cover the same distance with an average speed of 4.27 m/s. How much later (in seconds) should the younger runner start in order to finish the course at the same time...
*Wednesday, September 10, 2014 by Anonymous*

**physics**

A swimmer heads directly across a river, swimming at 1.2 m/s relative to the water. She arrives at a point 48 m downstream from the point directly across the river, which is 77 m wide. (a) What is the speed of the river current? (b) What is the swimmer's speed relative to ...
*Wednesday, September 10, 2014 by Johnathan*

**physics**

Two people take identical jet skis across a river, traveling at the same speed relative to the water. Jet ski A heads directly across the river and is carried downstream by the current before reaching the opposite shore. Jet ski B travels in a direction that is 35° ...
*Wednesday, September 10, 2014 by Johnathan*

**physics**

You are riding on a jet ski directed at an angle upstream on a river flowing with a speed of 2.8 m/s. If your velocity relative to the ground is 8.0 m/s at an angle of 30.5° upstream, what is the speed of the jet ski relative to the water? I thought I should just use ...
*Wednesday, September 10, 2014 by Nikki*

**physics**

The pilot of an airplane wishes to fly due north, but there is a 71 km/h wind blowing toward the east. (a) In what direction should the pilot head her plane if its speed relative to the air is 314 km/h? ° west of north Should the angle just be the opposite of the one ...
*Wednesday, September 10, 2014 by Debby*

**Physics**

A Nile cruise ship takes 21.7 h to go upstream from Luxor to Aswan, a distance of 208 km, and 20.3 h to make the return trip downstream. Assuming the ship's speed relative to the water is the same in both cases, calculate the speed of the current in the Nile.
*Wednesday, September 10, 2014 by Shannon*

**physics**

The captain of a plane wishes to proceed due west. The cruising speed of the plane is 226 m/s relative to the air. A weather report indicates that a 32.0-m/s wind is blowing from the south to the north. In what direction, measured with respect to due west, should the pilot ...
*Wednesday, September 10, 2014 by Anonymous*

**Physics-bobpursley Follow Up**

Initial Question: A rubber ball is dropped onto a ramp that is tilted at 20 degrees. A bounding ball obeys the "law of reflection," which says that the ball leaves the surface at the same angle it approached the surface. The ball's next bounce is 3.0 m to the ...
*Wednesday, September 10, 2014 by Anonymous*

**Physics**

An arrow is shot into the air at an angle of 59.4° above the horizontal with a speed of 20.0 m/s. What is the x-component of the velocity of the arrow 3.30 s after it leaves the bowstring? What is the y-component of the velocity of the arrow 3.30 s after it leaves the ...
*Wednesday, September 10, 2014 by Shannon*

**Physics**

A particle's constant acceleration is north at 108 m/s2. At t = 0, its velocity vector is 62.8 m/s east. At what time will the magnitude of the velocity be 118 m/s
*Wednesday, September 10, 2014 by Shannon*

**physics**

A 1.8-kg object moves in the x direction according to the following function: x(t) = 2t2 + 3t − 5 (SI units). What is the force on the object after 2.7 s?
*Wednesday, September 10, 2014 by steph*

**physics**

A kangaroo jumps straight up to a vertical height of 1.19m, how long was it in the air before returning on earth
*Wednesday, September 10, 2014 by Anonymous*

**Physics**

A commuter backs her car out of her garage with a constant acceleration of 1.40 m/s2. (a) How long does it take her to reach a speed of 1.60 m/s? s (b) If she then brakes to a stop in 0.8 s, what is her (constant) deceleration? m/s2
*Wednesday, September 10, 2014 by Jon*

**physics**

A rocket rises vertically, from rest, with an acceleration of 3.2 m/s2 until it runs out of fuel at an altitude of 730m . After this point, its acceleration is that of gravity, downward.whats the maximum altitude does the rocket reach?
*Wednesday, September 10, 2014 by Megan *

**Chemistry**

1. Imagine that you work at a company that prepares chemical solutions. You are asked to label a solution to sell to different customers. One customer is a hospital, another is a chemistry lab at a university, and a third is a physics lab at a university. You added 900 kg of ...
*Wednesday, September 10, 2014 by SMS*

**physics**

a piolet wishes to fly to a city 1.20*10^3 km/h(N30E) of her present position .There is a wind of 72km/h(E),what direction (heading) should she fly and how long the trip takes?
*Wednesday, September 10, 2014 by usman*

**physics**

A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.59 m/s2 for 19.0 s. 2. Maintain a constant velocity for the next 2.15 min. 3. Apply a constant negative acceleration of −9.08 m/s2 for 5.42 s. (a) What was the ...
*Wednesday, September 10, 2014 by Armando*

**physics**

A toy rocket, launched from the ground, rises vertically with an acceleration of 28 m/s2 for 9.5 s until its motor stops. Disregarding any air resistance, what max- imum height above the ground will the rocket achieve? The acceleration of gravity is 9.8 m/s2 . Answer in units ...
*Wednesday, September 10, 2014 by Anonymous*

**physics**

A ball player catches a ball 3.70s after throwing it vertically upward, what speed did he threw it
*Wednesday, September 10, 2014 by Anonymous*

**physics**

from a cliff of 49m high ,a man drops a stone 1s later he throes second stone . they both hit the ground at the same time . find out the speed with which he throws the second stone.
*Wednesday, September 10, 2014 by divya*

**physics**

A block of mass M1 = 0.320 kg is initially at rest on a cart of mass M2 = 0.680 kg with the cart initially at rest on a level air track. The coefficient of static friction between the block and the cart is ?s = 0.610, but there is essentially no friction between the air track...
*Wednesday, September 10, 2014 by Mke*

**Physics**

A box is sliding down a frictionless plane inclined at an angle of 30° width the horizontal. What is the acceleration of the box?
*Wednesday, September 10, 2014 by Precious*

**Physics**

A tennis player hits a ball 1.6 m above the ground. The ball leaves the racket with a speed of 12 m/s at an angle 8.0 degrees above the horizontal. The net is a horizontal distance of 7.0 m away from the player and is 1.0 m high. (a.) Does the ball clear the net? Explain how ...
*Wednesday, September 10, 2014 by Alex*

**Physics**

Henry Heavyweight weighs 1400N and stands on a pair of bathroom scales so that one scale reads twice as much as the other. What are the scale readings?
*Wednesday, September 10, 2014 by Anonymous*

**Physics**

The coefficient of rolling friction between the floor and the hardened steel balls of an anesthesia trolley (anesthesia machine with ventilator and monitor) is 0.0015. If a hospital crew needs 77 N to push the trolley at an angle of 30 degrees below the horizontal with ...
*Wednesday, September 10, 2014 by Help*

**Physics**

A body weighing 980N is moving with constant speed of 5 m/s on a horizontal surface. The coefficient of sliding friction between the body and the surface is 0.25. What horizontal pull is necessary to maintain the motion?
*Wednesday, September 10, 2014 by Sandy*

**physics**

What horizontal force is needed to push a hospital bed of mass 120 kg at a constant speed up a smooth sloping plane inclined at an angle of 37 degrees above the ground?
*Wednesday, September 10, 2014 by Lovely *

**Physics**

A car accelerates uniformly from rest at 3m/s(square).What is its velocity after travelling a distance of 24m?
*Wednesday, September 10, 2014 by Dammy*

**College Physics**

How many gallons of Oil would be in a cylindrical tank that was 24 feet long and had a diameter of 6 feet if the oil was 6 inches deep at the bottom of the tank?
*Wednesday, September 10, 2014 by Meghan*

**physics**

a pump fills a tank of capacity 300 m^3 in 5 hours.the tank is situated at a height of 20 m.if the efficiency of the tank is 65%. then calculate the power of the engine which has driven the pump.
*Wednesday, September 10, 2014 by Anonymous*

**physics **

A carton of juice remains intact even after you have sucked out all the drink from it. please explain
*Wednesday, September 10, 2014 by manavi*

**physics**

A man stands at the top of a 27-m high building and throws a penny straight downward. If the penny has an initial velocity of -3.9 m/s, what is the velocity of the penny in m/s when it hits the ground?
*Tuesday, September 9, 2014 by Carissa*

**physics**

Tammy drives 34 km due north, then continues in a direction of 32◦ north of east for 99 km.What is her total displacement from the office?
*Tuesday, September 9, 2014 by Anonymous*

**physics**

a large aircraft accelerates sown the runway for a distance of 3000m before leaving the ground. It then climbs at a steady 3 degree angle. After the plan has travelled 4000m along this new trajectory, how high is it and how far horizontally is it from its initial position?
*Tuesday, September 9, 2014 by Brian*

**physics**

Runner A is initially 5.3 km west of a flagpole and is running with a constant velocity of 8.4 km/h due east. Runner B is initially 4.5 km east of the flagpole and is running with a constant velocity of 7.1 km/h due west. How far are the runners from the flagpole when their ...
*Tuesday, September 9, 2014 by belida*

**Physics**

A truck on a straight road starts from rest and accelerates at 2.8 m/s^2 until it reaches a speed of 16 m/s. Then the truck travels for 16s at constant speed until the brakes are applied,stopping the truck in a uniform manner in an additional 3.6 s. How long is the truck in ...
*Tuesday, September 9, 2014 by Isaac*

**Physics 2**

A proton is accelerated from rest through a potential difference of 129 V. Calculate the final speed of this proton. The mass of a proton is 1.673 × 10−27 kg and the elemental charge is 1.602 × 10−19 C . Answer in units of m/s
*Tuesday, September 9, 2014 by Kirbi*

**physics**

A bush baby, an African primate, is capable of leaping vertically to the remarkable height of 2.3 m. To jump this high, the bush baby accelerates over a distance of 0.18m while extending the legs. The acceleration during the jump is approximately constant. What is the ...
*Tuesday, September 9, 2014 by Kayla*

**physics**

1.A motorist drive along a straight road at a constant speed of 15.0 m/s.Just as she passes a parked motorcycle police officer,the officer starts to accelerate at 2.0 m/s^2 to overtake her. Assuming the officer maintains this acceleration, a) determine the time it takes the ...
*Tuesday, September 9, 2014 by Anonymous*

**physics **

A skydiver weighs 158 lb. When the skydiver reaches terminal speed, how much air drag does the skydiver experience?
*Tuesday, September 9, 2014 by A*

**Physics**

A rubber ball is dropped onto a ramp that is tilted at 20 degrees. A bounding ball obeys the "law of reflection," which says that the ball leaves the surface at the same angle it approached the surface. The ball's next bounce is 3.0 m to the right of its first ...
*Tuesday, September 9, 2014 by Anonymous*

**physics**

A sports car moving at constant velocity travels 110m in 5.1s .If it then brakes and comes to a stop in 4.3s , what is the magnitude of its acceleration (assumed constant) in m/s2?
*Tuesday, September 9, 2014 by Anonymous*

**Physics**

Find the attractive force bet a 50 kg girl and a 60 kg boy, if they stand 2.00 m apart.
*Tuesday, September 9, 2014 by Anonymous*

**physics**

Cars A and B are racing each other along the same straight road in the following manner: Car A has a head start and is a distance DA beyond the starting line at t=0. The starting line is at x=0. Car A travels at a constant speed vA. Car B starts at the starting line but has a ...
*Tuesday, September 9, 2014 by Anonymous*

**physics**

A sports car accelerates from rest to 86km/h\, km/h in 5.2s\, s . What is its average acceleration in m/s2{\rm{m/s}}^2.
*Tuesday, September 9, 2014 by Anonymous*

**physics**

a rolling ball moves x1 = 8.0 cm to x2 = -4.3 cm during a time interval t1= 3.5 to t2- 6.9, what is the average velocity over this time interval
*Tuesday, September 9, 2014 by Anonymous*

**physics**

A 1600n is supported by two cables of equal length two ends are fasted by two nail by place horizontal level at 8m part .find the tension each cables when the block6m below the horizontal level.
*Tuesday, September 9, 2014 by Anonymous*

**Physics**

A 1kg pigeon sits on the middle of a clothesline whose supports are 10m apart. The clothesline sags by 1 meter. If the weight of the clothesline is negligible, find the tension in it.
*Tuesday, September 9, 2014 by Rick*

**Physics**

A stretched wire 75cm long emits a fundamental frequency of 300Hz.By how much the length be changed so that it emits a fundamental note of 450Hz?
*Tuesday, September 9, 2014 by geofrey*

**Physics**

a racing car reaches a speed of 44m/s. at this instandt, it behins a uniform deceleration using a parachute and a braking system, and comes to a rest 4.8s later. Find the acceleration of the car
*Tuesday, September 9, 2014 by Anonymous*

**physics**

1.A motorist drive along a straight road at a constant speed of 15.0 m/s.Just as she passes a parked motorcycle police officer,the officer starts to accelerate at 2.0 m/s^2 to overtake her. Assuming the officer maintains this acceleration, a) determine the time it takes the ...
*Tuesday, September 9, 2014 by Anonymous*

**physics**

A block of mass M slides along the smooth wedge mass M.what will be the acceleration of centre of mass of block and wedge system?
*Tuesday, September 9, 2014 by rishab*

**Physics**

A 1kg pigeon sits on the middle of a clothesline whose supports are 10m apart. The clothesline sags by 1 meter. If the weight of the clothesline is negligible, find the tension in it.
*Tuesday, September 9, 2014 by Rick*

**Physics**

This is based off of the paper "Scaling -- The Physics of Lilliput", but I think the following questions can be answered out of context: 1. Based on the Lilliputian reading: A) A rectangular water tank is supported above the ground by 4 pillars 5.0 cm long whose ...
*Tuesday, September 9, 2014 by Emily*

**physics**

what is the perpendicular distance between two parellel rays emerging from a glass block called please give reply as tomorrow i have physics paper
*Tuesday, September 9, 2014 by manavi*

**physics**

A car is traveling along a straight road at a velocity of +27.7 m/s when its engine cuts out. For the next 1.94 seconds, the car slows down, and its average acceleration is . For the next 4.92 seconds, the car slows down further, and its average acceleration is . The velocity ...
*Tuesday, September 9, 2014 by S*

**physics**

Assume a projectile is launched from ground height over a flat plane, at an angle of 50 degrees above the horizontal with an initial speed of 100 m/s. What is the initial velocity of the projectile parallel to the ground (in the x direction) and perpendicular to the ground (in...
*Monday, September 8, 2014 by john*

**physics**

A ball is tossed with enough speed straight up so that it is in the air several seconds. Assume upward direction is positive and downward is negative.What is the acceleration of the ball during any of these time intervals? What is the acceleration of the ball at the moment the...
*Monday, September 8, 2014 by Mia*

**Physics**

A helicopter is ascending vertically with a speed of 5.66m/s. At a height of 106m above the Earth, a package is dropped from the helicopter. How much time does it take the package the package to reach the ground? (Ignore air resistance) I would like to know what my givens are ...
*Monday, September 8, 2014 by Taylor*

**physics**

A blue ball is thrown upward with an initial speed of 22.8 m/s, from a height of 0.8 meters above the ground. 2.8 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 10.9 m/s from a height of 29.3 meters above the ground. The force of ...
*Monday, September 8, 2014 by jerry*

**Physics**

Vector A has a magnitude of 13.0 units and points due west. Vector B points due north. (a) what is the magnitude of B if A+B has a magnitude of 16.8 units? (b) What is the direction of A+B relative to due west? (c) What is the magnitude of B if A-B has a magnitude of 16.8 ...
*Monday, September 8, 2014 by Sarah*

**Physics**

You have three balls, one is thrown upward at 30m/s, on is dropped, and one is thrown toward the ground at 20m/s. what is the acceleration of the dropped ball? Vf=0m/s + (-10m/s^2)(1) =0m/s -10m?s^2 = -10m/s a= -10m/s * 0 /1 = 0 am i on the right track.....? please help
*Monday, September 8, 2014 by Keisha H*

**physics**

Calculate the acceleration of a ball that starts from rest, rolls down a ramp, and gains a speed of 24m/sm/s in 5.8 seconds.
*Monday, September 8, 2014 by Mia*

**physics**

Calculate the distance you will travel if you maintain an average speed of 12km/h for one-half hour.
*Monday, September 8, 2014 by Mia*

**Physics**

Calculate the average speed (in km/h)of Larry, who runs to the store 3.6 kilometers away in 40 minutes.
*Monday, September 8, 2014 by Mia*

**Physics**

You serve a tennis ball from a height of 2.1 m above the ground. The ball leaves your racket with a speed of 19.2 m/s at an angle of 5.3° above the horizontal. The horizontal distance from the court's baseline to the net is 11.83 m, and the net is 1.07 m high. Neglect ...
*Monday, September 8, 2014 by Derek*

**Physics**

On a distant planet, a freely falling object has an acceleration of 17m/s2m/s^2 . Calculate the speed that an object dropped from rest on this planet acquires in 2.0ss .
*Monday, September 8, 2014 by Mia*

**physics**

Two point charges 0.600 m apart experience a repulsive force of 0.400 N. The sum of the two charges equals 1.00*10^-5 C. Find the values of the two charges.
*Monday, September 8, 2014 by Anonymous*

**Physics**

A wind is blowing with a speed of 50 mph is a direction 40 degrees west of north. What is the westerly component of the wind's velocity? What is the northerly component of this velocity?
*Monday, September 8, 2014 by Samuel*

**Physics**

An object starts from rest an under a constant acceleration has traveled a displacement of 30.5 meters when it reaches a certain final velocity. The same object starts from rest, but has an acceleration which is a factor of 3.3 times smaller than the original acceleration. If ...
*Monday, September 8, 2014 by Sam*

**physics **

In our country and in most of other countries ,the Celsius scale is more commonly used . Can you think of a reason for this?
*Monday, September 8, 2014 by sandra *

**Physics**

A boy jumps from rest, straight down from the top of a cliff. He falls halfway down to the water below in 0.620 s. How much time passes during his entire trip from the top down to the water? Ignore air resistance.
*Monday, September 8, 2014 by Hoku*

**physics**

A stone is thrown from the top of a building upward at an angle of 30.0∘to the horizontal and with an initial speed of 20.0 m/s. If the height of the building is 45.0 m, what is the speed in m/sec of the stone just before it strikes the ground ?
*Monday, September 8, 2014 by Rachit agrawal*

**physics**

The position of a particle as it moves along the x axis is given by x = 15eƒ{2t m, where t is in s. What is the acceleration of the particle at t = 1.0 s? 4.
*Monday, September 8, 2014 by Anonymous*

**PHYSICS**

A car moves around a 4.5 km circular track at a rate of 40.0 m/s. What is the magnitude of the force that keeps a 1000-kg car in circular motion?
*Monday, September 8, 2014 by DULCE ALERIA *

**physics**

if a electricity genreter move with the speed of 60km/h how much electricity they generate in 1 minute in volt
*Monday, September 8, 2014 by rahul*

**Physics**

A small rock is thrown vertically upward with a speed of 14.0m/s from the edge of the roof of a 25.0m tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected. What is the speed of the rock just ...
*Sunday, September 7, 2014 by Deszlyn*

**Physics**

Two cars, A and B, travel in a straight line. The distance of A from the starting point is given as a function of time by xA(t)=αt+βt^2, with α=2.60m/s and β=1.20m/s^2. The distance of B from the starting point is xB(t)=γt^2−δt^3, with γ...
*Sunday, September 7, 2014 by Mary*

**physics**

A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.4 m/s2; after 4.4 s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant ...
*Sunday, September 7, 2014 by S*

**Physics**

A 100kg trolley is being pushed up a rough 30Â° incline by a constant force. The friction force between the incline and the trolley is 110N. (a) Determine thd value of the constant force that will move the trolley up the incline at a constant velocity of 5m/s. (b) ...
*Sunday, September 7, 2014 by Slavh*

**physics**

A person takes a trip, driving with a constant speed 94 km/h except for a 50 min rest stop. If the person's average velocity is 74 km/h, how far is the trip? Answer in units of km.
*Sunday, September 7, 2014 by waverly*

**Physics**

Two ping-pong balls each have a mass of (1.4x10^0) g and carry a net charge of (3.99x10^0) μC. One ball is held fixed. At what height should the second ball be placed directly above the fixed ball if it is to remain there?
*Sunday, September 7, 2014 by John*

**Physics**

Two 34 −ìC charges are attached to the opposite ends of a spring of spring constant 150 N/m and equilibrium length 50 cm. that is the question I should probably know this but my brain is fried so far all I have is Original length = 50 cm = 0.5 m Let the spring ...
*Sunday, September 7, 2014 by Brock *

**Physics**

What electric field strength would store 17.5J of energy in every 9.00mm3 of space?
*Sunday, September 7, 2014 by Icy*

**Physics**

A Honda Civic travels in a straight line along a road. Its distance x from a stop sign is given as a function of time t by the equation x(t)= α t^2− β t^3, where α = 1.54m/s2 and β = 5.05×10−2m/s^3 . Calculate the average velocity of the ...
*Sunday, September 7, 2014 by Lekan*

**Physics **

Two 0.75m -long pendulums hang side by side. The masses of the pendulum bobs are 65g and 85g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at the bottom of its arc.To ...
*Sunday, September 7, 2014 by Kayla*

**Physics**

A car travels in the +x-direction on a straight and level road. For the first 5.00s of its motion, the average velocity of the car is V = 7.11m/s . How far does the car travel in 5.00s ? Thank you!
*Sunday, September 7, 2014 by Eddie*

**physics**

A rifle with a muzzle velocity of 480 m/s shoots a bullet at a target 45.6 m away. How high above the target must the rifle barrel be pointed to ensure that the bullet will hit the target? Neglect air resistance.
*Sunday, September 7, 2014 by Will*

**AP Physics C**

as she pick up her riders a bus driver traverses four successive displacements represented by the expression (-6.30 b)i-(4.00 b cos 40)i-(4.00 sin 40)j+(3.00 b cos 50)i-(3.00 b sin 50)j-(5.00 b)j here b represents one city block,a convenient unit of distance of uniform size; i...
*Sunday, September 7, 2014 by Melly*

**physics**

How long will it take a cat to run 8.2m [N] at an average velocity of 3.7m/s [N]
*Sunday, September 7, 2014 by cate*

**Physics**

A 330.0 g block is dropped onto a vertical spring with a spring constant k = 234.0 N/m. The block becomes attached to the spring, and the spring compresses 0.26 m before momentarily stopping. A) While the spring is being compressed, what what is the change in the objects ...
*Sunday, September 7, 2014 by Kat*

**Physics**

At one instant a bicyclist is 40 m due east of a park's flagpole, going due south with a speed of 18 m/s. Then, 23 s later, the cyclist is 55 m due north of the flagpole, going due east with a speed of 12 m/s. For the cyclist in this 23 s interval, find each of the ...
*Sunday, September 7, 2014 by Jimmy*

**physics**

Two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. Rocket A has an initial velocity of +4100 m/s, while rocket B has an initial velocity of +9400 m/s. After a time t both rockets are again side by side, the displacement of...
*Sunday, September 7, 2014 by S*