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July 23, 2014

Search: Find the acceleration experienced by each of the two masses shown in Figure P4.49 if the coefficient of kinetic friction between the 7.00 kg mass and the plane is 0.300.

Number of results: 93,198

PHysics
The vector position of a 3.65 g particle moving in the xy plane varies in time according to the following equation. r1 = <(3i+3j)t + 2jt^2> At the same time, the vector position of a 5.60 g particle varies according to the following equation. r2 = <3i - 2it^2 - 6jt>...
February 16, 2010 by engmath

physics
Three carts of masses 5 kg, 12 kg, and 3 kg move on a frictionless horizontal track with speeds of 5 m/s, 8 m/s, and 4 m/s, as shown in figure. The carts stick together after colliding. 5 kg 12 kg 3 kg 5 m/s 8 m/s 4 m/s Find the final velocity of the three carts. ...
February 1, 2012 by ntirandekura

math
a large jar contains 500 identical marbles. Suppose you have an identical empty jar, a set of standard masses and balance scales. How would you find the mass of one marble without opening or breaking the jar? Explain Thanks for your help, this stumped me for sure.
April 8, 2009 by jillybean

physics
Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord initially holding the blocks together is burned; after this the block of mass 3M ...
October 31, 2009 by Anonymous

Physics
Suppose the space shuttle is in orbit 430 km from the Earth's surface, and circles the Earth about once every 93.2 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, the gravitational acceleration at the Earth's ...
July 8, 2012 by Dave

Physics Energy & Acceleration
A light spring with force constant 3.45 N/m is compressed by 7.92 cm as it is held between a 0.241 kg block on the left and a 0.482 kg block on the right, both resting on a horizontal surface. The spring exerts a force on each block, tending to push them apart. The blocks are ...
November 1, 2011 by mR. Ba3BOOS

Physics ASAP
Suppose the space shuttle is in orbit 390 km from the Earth's surface, and circles the Earth about once every 92.4 minutes. Find the centripetal acceleration of the space shuttle in its orbit. Express your answer in terms of g, the gravitational acceleration at the Earth's ...
November 26, 2012 by Sierra

physics
On planet x, an object weighs 10.4N. On planet B where the magnitude of the free fall acceleration is 1.48g (where g=9.8 m/s^2 is the gravitational acceleration on Earth),the object weighs 24.6N. The acceleration of gravity is 9.8 m/s^2. What is the mass of the object on Earth...
July 2, 2011 by alexa

physics
Only two forces act on an object (mass = 4.20 kg), as in the drawing. (F = 73.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object. magnitude m/s2 direction counterclockwise from the +x axis The angle from the block is pointing 45...
October 13, 2011 by Taylor

physics
Two blocks with masses m1 = 1.10 kg and m2 = 3.10 kg are connected by a massless string, as shown in the Figure (the figure shows m1 on top of a box and m2 hanging off the side of the box). They are released from rest. The coefficent of kinetic friction between the upper block...
February 28, 2012 by meyer

physics
Two blocks with masses m1 = 1.10 kg and m2 = 3.10 kg are connected by a massless string, as shown in the Figure (the figure shows m1 on top of a box and m2 hanging off the side of the box). They are released from rest. The coefficent of kinetic friction between the upper block...
February 28, 2012 by meyer

Math
Find the distance function s(t) if you know the acceleration function a(t)= sin(0.1t)/cos^3(0.1t) find the second derivative of a(t). I will be happy to critique your work.
November 16, 2006 by SKuink

physics
A truck covers m in 8 s while smoothly slowing down to a final speed of 2.8 m/s. (a) Find its initial speed. (b) Find its acceleration.
April 5, 2012 by david

physics
In an electric shaver, the blade moves back and forth over a distance of 2.0 mm. The motion is simple harmonic, with frequency 118 Hz. (a) Find the amplitude. mm (b) Find the maximum blade speed. m/s (c) Find the magnitude of the maximum blade acceleration. m/s2
December 8, 2008 by johnny

physics
In an electric shaver, the blade moves back and forth over a distance of 2.0 mm. The motion is simple harmonic, with frequency 118 Hz. (a) Find the amplitude. mm (b) Find the maximum blade speed. m/s (c) Find the magnitude of the maximum blade acceleration. m/s2
December 11, 2008 by johnny

physics
A cart is driven by a large propeller or fan, which can accelerate or decelerate the cart. The cart starts out at the position x = 0 m, with an initial velocity of + 3.3 m/s and a constant acceleration due to the fan. The direction to the right is positive. The cart reaches a...
January 28, 2014 by Anonymous

physics
A car moving with constant acceleration covered the distance between two points 60.0 m apart in 6.00 s. Its speed as it passed the second point was 15.0 m/s. (a) What was the speed at the first point? (b) What was the magnitude of the acceleration? (c) At what prior distance ...
September 10, 2011 by Rebekah

physics
A red ball is thrown down with an initial speed of 1.0 m/s from a height of 27.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 24.5 m/s, from a height of 0.7 meters above the ground. The force of ...
August 27, 2012 by David

Physics
Two objects are connected by a light string that passes over a frictionless pulley as in the fi gure. One object lies on a frictionless, smooth incline. In the figure, m1 = 8.48 kg, m2 = 4.84 kg, and  theta = 40.2 degrees . When we let go of the mass m1, it accelerates ...
January 27, 2013 by Lindsey

physics
Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed, you will experience a constant acceleration. Suppose you drive through an entrance ramp at a modest speed and your acceleration is 3.0m/s2 . What will be the ...
September 18, 2013 by Anonymous

Physics
Two blocks, (Mass of block 1 = 2.3kg, Mass of block 2 = 1.2kg), are in contact on a frictionless table. If a horizontal force of 3.2N is applied to the larger block, what is the acceleration of the smaller block. Describe all external forces that are acting on the two blocks
November 25, 2012 by Tim

Physics
Two blocks, (Mass of block 1 = 2.3kg, Mass of block 2 = 1.2kg), are in contact on a frictionless table. If a horizontal force of 3.2N is applied to the larger block, what is the acceleration of the smaller block. Describe all external forces that are acting on the two blocks
November 25, 2012 by Tim

Physics
h t t p : / / b i t . l y / 9 S F F F o a) What is the minimum value of F needed to move the two blocks? b) If the force is 10% greater than your answer for (a), what is the acceleration of each block?
September 19, 2010 by Phil

Physics
h t t p : / / b i t . l y / 9 S F F F o a) What is the minimum value of F needed to move the two blocks? b) If the force is 10% greater than your answer for (a), what is the acceleration of each block?
September 19, 2010 by John

uhar
two blocks a and b are connected by a cord passes over a frictionless pulley. the mass of a is 1.2 kg and the magnitude of acceleration is 3.6
March 21, 2013 by ali

calculus help
What constant acceleration is required to increase the speed of a car from 22 mi/h to 50 mi/h in 3 s? (Round your answer to two decimal places.)
April 19, 2014 by Kimberly :(

physics
we can say that the force of gravity is equal to mass times acceleration were the acceleration is equal to gravity sense gravity is an acceleration because of newtons second law force = mass times acceleration hence Fg = mass times acceleration Fg = mass times gravity Fg = mg ...
September 12, 2009 by physics

PHYSICS (HELP)
A playground merry-go-round has a radius of R= 2 m and has a moment of inertia Icm= 9103kg⋅m2 about a vertical axis passing through the center of mass. There is negligible friction about this axis. Two children each of mass m= 20kg are standing on opposite sides at a ...
November 9, 2013 by Anonymous

Physics
The maximum torque experienced by a coil in a 0.90 T magnetic field is 8.4 10-4 Nm. The coil is circular and consists of only one turn. The current in the coil is 3.9 A. What is the length of the wire from which the coil is made? Please tell me if I am going in the right ...
September 28, 2007 by Mary

Physics
A jogger accelerates from rest to 2.78 m/s in 2.79 s. A car accelerates from 21.8 to 37.5 m/s also in 2.79 s. (a) Find the magnitude of the acceleration of the jogger. (b) Determine the magnitude of the acceleration of the car. (c) How much further does the car travel than the...
September 15, 2011 by Anonymous

physics
A jogger accelerates from rest to 5.78 m/s in 3.51 s. A car accelerates from 19.7 to 32.1 m/s also in 3.51 s. (a) Find the magnitude of the acceleration of the jogger. (b) Determine the magnitude of the acceleration of the car. (c) How much further does the car travel than the...
September 13, 2012 by Alex

physics
A jogger accelerates from rest to 5.64 m/s in 3.36 s. A car accelerates from 24.6 to 39.8 m/s also in 3.36 s. (a) Find the magnitude of the acceleration of the jogger. (b) Determine the magnitude of the acceleration of the car. (c) How much further does the car travel than the...
June 16, 2013 by louis aaaaa

phsyics
A jogger accelerates from rest to 3.65 m/s in 3.46 s. A car accelerates from 24.0 to 40.1 m/s also in 3.46 s. (a) Find the magnitude of the acceleration of the jogger. (b) Determine the magnitude of the acceleration of the car. (c) How much further does the car travel than the...
February 3, 2014 by kyle

History
During the nineteenth century, which of the following countries experienced a decrease in industrial production? A. Britain B. China C. India D. Japan Not sure I think the answer is C.
February 19, 2014 by Abby

physics
A truck covers 40.0 m in 8.60 s while smoothly slowing down to a final velocity of 2.00 m/s. (a) Find the truck's original speed. (b) Find its acceleration.
September 10, 2010 by tiffany

physics
A truck covers 40.0 m in 7.00 s while smoothly slowing down to a final velocity of 2.45 m/s. Find the truck's original speed. Find its acceleration.
September 16, 2010 by J

physics
truck covers 40.0 m in 7.50 s while uniformly slowing down to a final velocity of 2.65 m/s. (a) Find the truck's original speed. (b) Find its acceleration. m/s2
February 4, 2014 by Anonymous

Physics
A drag racer crosses the finish line of a 400.0-m track with a final speed of 104 m/s. (a) Assuming constant acceleration during the race, find the racers time and the minimum co efficient of static friction between the tires and the road. (b) If, because of bad tires or wet ...
September 6, 2011 by John

Physics
A drag racer crosses the finish line of a 400.0-m track with a final speed of 104 m/s. (a) Assuming constant acceleration during the race, find the racers time and the minimum co efficient of static friction between the tires and the road. (b) If, because of bad tires or wet ...
September 22, 2011 by John

math
If you have a trapezoid that is divided into two triangles to find the area would you find the area of each triangle then add the two areas together?
May 5, 2011 by heather

Work energy
Question Details Three masses m1= 5.0 kg ; m2= 10.0 kg ; m1= 15.0 kg are attached by a strings over frictionless pulleys. The horizontal surface exerts a force of friction of 30N on m2. If the system is released from rest, use energy concepts to find the speed of m2 after it ...
November 19, 2006 by Harry

Physics
a. 2 objects each of mass 200 kg and 500 kg are separated by 50 cm. Where body of mass 20 kg should be placed so that the resultant force of gravity experienced by objects equal to zero? b. launched a rocket leaving Earth. Known radius of the earth 6.4 x 10 km and ...
May 6, 2013 by steffy Jane

physics
A ball rolls up a ramp and then back down again. The ramp is oriented so that the ball is rolling to the right as it rolls up the ramp. Assume that positive v and a vectors point to the right. Which statement is true about the ball's horizontal acceleration? b. The ball has a ...
January 19, 2012 by Vicki

Gen. physics
A cart is driven by a large propeller or fan, which can accelerate or decelerate the cart. The cart starts out at the position x = 0 m, with an initial velocity of +6.4 m/s and a constant acceleration due to the fan. The direction to the right is positive. The cart reaches a ...
July 2, 2013 by ODU

chemistry
balance this equation. prove that it obeys the law of conservation of mass by using formula masses. HNO3 + Mg(OH)2 ---> HOH + Mg(NO3)2 is this balanced? 2HNO3 + Mg(OH)2 ---> HOH + Mg(NO3)2 I dont understand the formula masses part do i just find the mass of each? It isn'...
May 14, 2007 by mike

vector and mass
A particle of mass m kg is acted on by two forces F1 and F2 with magnitudes 3root5 newtons and root5 newtons ad drections parallel to the vectors i+2j and i-2j respectively The particle is initially at a position given by vector 2i+j iv calculated the cartesian components of ...
July 15, 2006 by rav

physics
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration. (a) What exerts the force in the direction of the ...
November 30, 2010 by max

physics
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration (a) What exerts the force in the direction of the ...
November 30, 2010 by max

physics
A certain force gives mass m1 an acceleration of 10.0 m/s2 and mass m2 an acceleration of 4.0 m/s2. What acceleration would the force give to an object with a mass of (m2-m1)?
September 28, 2009 by Brian

Physics
A certain force gives mass m1 an acceleration of 10.0 m/s2 and mass m2 an acceleration of 4.0 m/s2. What acceleration would the force give to an object with a mass of (m2-m1)?
September 28, 2009 by Brian

Math
1) Find three functions with unlimited domains and ranges. 2) Find two functions with restricted domains. 3) Find two functions with restricted ranges. Im confused as to how I can find the answer for these question, can you please explain along the steps.
July 19, 2011 by Kate

Physics
Which of the following describe possible scenarios? A) An object has zero instantaneous velocity and non-zero acceleration. B) An object has negative acceleration and is speeding up. C) An object has positive acceleration and constant velocity. D) An object has positive ...
September 6, 2013 by Branden

Nuclear Chemistry
The half- life of a positron is very short. it reacts with an electron, and the masses of both are converted to two gamma-ray photons: (0e+1)+ (0e-1)---> 2γ (the 0 in front of e is the mass # and behind it is the atomic #) (γ stands for the photons) This reaction ...
June 13, 2012 by Anonymous

math
Solve the two sided inequality and show the solution on real line 7 < 1-2x ≤ 10 Given two functions as: f(x) = x2-x-1 and g(x) = 3/x Find fog(x) also find the domain of f, g and fog
October 26, 2010 by mary

physics
When you lift a bowling ball with a force of 69.3 N, the ball accelerates upward with an acceleration a. If you lift with a force of 77.2 N, the ball's acceleration is 2.00a. Calculate the weight of the bowling ball. For this should I add both force together to find a?
September 22, 2009 by Samantha

Physics
An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale reads 265 N. Chriss true...
October 22, 2012 by Amelia

Physics
An inventive child named Chris wants to reach an apple in a tree without climbing the tree. Sitting in a chair connected to a rope that passes over a frictionless pulley, Chris pulls on the loose end of the rope with such a force that the spring scale reads 265 N. Chriss true...
October 22, 2012 by Courtney

Physics
A machine swings a mass of 1kg connected to a massless rope in a vertical circle so that the speed of them mass is constant at 8 m/s. The rope is 1.0 m long, and the center of the circle is fixed at all times. a) Find the acceleration of the mass with magnitude and direction ...
November 12, 2013 by Robin

Physics
Three particles have identical masses and identical inital velocities. These particles are projected one at a time into a region in which there is a uniform magnetic field B perpendicular to their velocities. If two of the particles are deflected in opposite directions and the...
April 21, 2008 by Andrea

Physics
For no apparent reason, a poodle is running at a constant speed of 5.80 m/s in a circle with radius 2.3 m. For t_delta = 0.5 s calculate the magnitude of the average acceleration a_av. I have no idea how to start this problem because I'm trying to use this equation: a_av = v^2...
August 16, 2011 by Kyle

implicit diffirentation
y4 + xy = x3 x + 84 (a) Find dy/dx at the two points on the graph with x-coordinate 0. Hint: Set x=0 in the equation and solve for y to find the two points.
October 15, 2010 by pav

physics
1. It has been suggested that rotating cylinders about 11 mi long and 5.2 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration on Earth? 2. If ...
July 11, 2008 by Elisa

11th grade
The curves on a race track are banked to make it easier for cars to go around the curves at high speed. Draw a free-body diagram of a car on a banked curve. From the motion diagram, find the direction of the acceleration (a) What exerts the force in the direction of the ...
November 30, 2010 by max

physics
A car moves along an x axis through a distance of 900 m, starting at rest (at x = 0) and ending at rest (at x = 900 m). Through the first of that distance, its acceleration is +2.25 m/s2 . Through the rest of that distance, its acceleration is 0.750 m/s2 . Find its maximum...
May 11, 2014 by Anonymous

Physics Classical Mechanics
A playground merry-go-round has a radius of R= 2 m and has a moment of inertia Icm= 9103kg⋅m2 about a vertical axis passing through the center of mass. There is negligible friction about this axis. Two children each of mass m= 30kg are standing on opposite sides at a ...
November 7, 2013 by A

physics
An athlete whose mass is 94.0 is performing weight-lifting exercises. Starting from the rest position, he lifts, with constant acceleration, a barbell that weighs 600 . He lifts the barbell a distance of 0.50 in a time of 2.2 . Part A Use Newton's laws to find the total force ...
November 9, 2012 by Anonymous

Calculus disaster
Uranium ore has two main isotopes, mostly U-238 with just a trace amount of U-235. In a sample of Uranium ore, 99.85% of the atoms are U-238 atoms and 0.15% are U-235 atoms. Before the Uranium can be used in a nuclear power plant, the proportion of U-235 must be increased to ...
August 28, 2010 by Amanda

Physics
Two masses, m1 = 2.0 kg and m2 = 3.3 kg, are moving in the xy-plane. The velocity of their center of mass and the velocity of mass 1 relative to mass 2 are given by the vectors vcm = (−1,+2.2) m/s and vrel = (+4.5, +1.0) m/s. (a) Determine the total momentum of the ...
October 11, 2011 by mymi

Math
The total resistance of two circuits in parallel is 15 ohms and one circuit has five times the resistance of the other, find the resistance of each circuit. Use 1/R=1/R1+1/R2. R1 and R2 are two individual resistances. a)Find the smaller resistance b)Find the larger resistance
March 12, 2013 by Megan

physics
In an electric field an electron is kept freely. If the electron is replacee by a proton, what will be the relationship between the forces experienced by them?
May 18, 2014 by savita

Velocity and Acceleration
A car is travelling on a highway Can it have a negative velocity & a positive acceleration at the same time? Can the car change d direction of its velocity when travelling with constant acceleration?
October 5, 2011 by -Untamed-

#2
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 335 km/h in a semicircular arc with a radius of 190 m. Determine the tangential acceleration of the car when it is halfway through the turn, assuming constant tangential acceleration. (in...
October 9, 2006 by Britt Pogue

physics
I'm a hurry to go to work today because I forgot to set my alarm clock and woke up late. I'm driving my car very fast, with a velocity of v=40 m/s and coming up to an intersection with a stoplight. When the distance between my car and the intersection is L=100 m, the light ...
March 12, 2013 by Anonymous

physic 1
The drawing shows three particles far away from any other objects and located on a straight line. The masses of these particles are mA = 347 kg, mB = 575 kg, and mC = 117 kg. Take the positive direction to be to the right. Find the net gravitational force, including sign, ...
February 13, 2014 by Anonymous

physics 1
The drawing shows three particles far away from any other objects and located on a straight line. The masses of these particles are mA = 347 kg, mB = 575 kg, and mC = 117 kg. Take the positive direction to be to the right. Find the net gravitational force, including sign, ...
February 18, 2014 by Anonymous

Physics
a) What is the tangential acceleration of a bug on the rim of a 6in. diameter disk if the disk moves from rest to an angular speed of 79 rev/min in 5 seconds? b) One second after the bug starts from rest, what is its tangential acceleration? What is its centripetal acceleration?
April 15, 2010 by Elizabeth

physics
Two blocks of masses m and M [M = 4.23m] are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord holding them together is burned, after which the block of mass M moves ...
January 23, 2011 by vanessa

phy
A force of magnitude 7.50 N pushes three boxes with masses m_1 = 1.30 kg,m_2 = 3.20 kg, and m_3 = 4.90 kg .The mass is side by side. 1-Find the magnitude of the contact force between boxes 1 and 2, and 2-Find the magnitude of the contact force between boxes 2 and 3.
July 17, 2011 by lily

phy
A force of magnitude 7.50 N pushes three boxes with masses m_1 = 1.30 kg,m_2 = 3.20 kg, and m_3 = 4.90 kg .The mass is side by side. 1-Find the magnitude of the contact force between boxes 1 and 2, and 2-Find the magnitude of the contact force between boxes 2 and 3.
July 18, 2011 by ana

History/English
Please help me understand this Explain the transformation of jurgis character throughout the jungle. How did his morals, actions and attitude change as he experienced events during his life?
October 23, 2013 by Emma

physics lab
Consider different points along one spoke of a wheel rotating with constant angular velocity. Which of the following is true regarding the centripetal acceleration at a particular instant of time? A The magnitude of the centripetal acceleration is greater for points on the ...
February 16, 2011 by Chris

physics/chem
(a) What equal positive charges (in Coulombs) would have to be placed on two celestial objects with masses 9.40 x 1027 and 1.99 x 1022 kg to neutralize their gravitational attraction? (b) What mass of hydrogen would be needed to provide the positive charge calculated in (a)? I...
March 31, 2008 by dave

Physics
A car is traveling along a straight road at a velocity of +31.0 m/s when its engine cuts out. For the next ten seconds, the car slows down further, and its average acceleration is a1. For the next five seconds, the car slows down further, and its average acceleration is a2. ...
November 30, 2008 by Sara

physics
how do i find angular acceleration?
September 30, 2007 by Kristen

physics
A 3.00 kg book is dropped from a height of 2.2 m. The acceleration of gravity is 9.81 m/s2 . a) What is its acceleration? Answer in units of m/s2.
October 11, 2010 by kayla

physics
a comet experiences a uniforn acceleration from 60m/s to 183m/s what is the rate of acceleration?
January 2, 2012 by ricky

Physics
Which is greater, an acceleration from 30 km/h to 40 km/h or an acceleration from 85 km/h to 93 km/h if both occur during the same time?
September 7, 2013 by Anonymous

Physics
1) what does the y intercept on a force vs acceleration graph represent? 2)what is the relationship of mass and acceleration?
October 30, 2013 by Aly

Grammar
Which of the following does NOT employ correct word usage? A. The bluffs are so steep that they can't hardly be scaled, even by experienced climbers. B. Boats carefully thread their way among the tricky and sometimes dangerous rocks and rapids in the Buffalo River. C. Besides ...
May 17, 2011 by anthony

Physics
Express the acceleration as a multiple of the gravitational acceleration, g (9.8 m/s^2) a=15 m/s divide by g, ie 15g's = 15*9.8m/s
April 11, 2007 by Katie

physics
a comet experiences uniform acceleration from 60 m/s to 183 m/s in 10.0 s. what is its rate of acceleration ?
January 11, 2012 by Anonymous

physics
A comet experiences uniform acceleration from 60 m/s to 183 m/s in 10.0. what is the rate of acceleration a. 6.0 m/s^2 b. 12.3 m/s^2 c. 18.3 m/s^2 d. 24.3 m/s^2
February 28, 2012 by Anonymous

science
A comet experiences uniform acceleration from 60 m/s to 183 m/s in 10.0 s. What is its rate of acceleration?
June 20, 2013 by Anonymous

Physics
Two blocks with masses m1 = 1.40 kg and m2 = 3.00 kg are connected by a massless string, as shown in the Figure. They are released from rest. The coefficent of kinetic friction between the upper block and the surface is 0.390.In the figure m1 is on top of a horizontal table ...
March 6, 2013 by Heidi

Physics
A truck travels at a constant speed of 28.0 m/s in the fast lane of a two-lane highway. It approaches a stationay car stopped at the side of the road. When the truck is still 1.2x10^2 m behind the car, the car pulls out into the slow lane with an acceleration of 2.6 m/s ...
July 10, 2011 by Capreeca

physcial science
How do I calculate the orbital velocity of a satellite that is 400 miles above the earth? Set the centripetal acceleration V^2/(R+h) equal to the gravitational acceleration, g * [R/(R+h)]^2 Then solve for V R is the earth's radius and h is the 400 mile height. g is the ...
June 25, 2007 by dave

physics
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 10.0 until the fuel is exhausted. After that, the rocket is in free fall. What's the max height? Ignore air resistance and ...
September 28, 2011 by Uzz

physics
The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 C; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 C and q3 = +4.50 C. Determine the net force (magnitude and direction) ...
September 2, 2009 by amber

physics
The drawing shows three point charges fixed in place. The charge at the coordinate origin has a value of q1 = +8.70 C; the other two charges have identical magnitudes, but opposite signs: q2 = -4.50 C and q3 = +4.50 C. Determine the net force (magnitude and direction) ...
September 2, 2009 by amber

physics
Calculate the angular speed of the rod, the vertical acceleration of the moving end of the rod, and the normal force exerted by the table on the rod as it makes an angle θ = 49.6 with respect to the vertical. b) If the rod falls onto the table without slipping, find the ...
April 3, 2011 by please help!!!!

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