# A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic frictions are 0.23 and 0.12 respectively. What is the minimum magnitude of the force F, parallel to the

22,562 questions, page 199
1. ## Math

What is the parent function of x=2?If y=2 is a constant.So f(x)=a. would be the parent function of y=2. Would x=2 also be a constant since it is just going vertical instead of horizontal?

asked by Rose on November 23, 2017
2. ## Physics

A catapult launches its payload at a 50.0degrees angle and the payload leaves the catapult 3.00 meters off the ground. If the payload travels 300.0 meters in the horizontal direction, what was the launch speed? At what speed does the payload hit the

asked by TP on April 21, 2014
3. ## physics

The coefficient of static friction between the tires of a car and a horizontal road is 0.515. As the car brakes, what is the magnitude of the maximum acceleration of the car? Assume the net force on the car is the maximum static friction force.

asked by Kevin on February 5, 2010
4. ## Physics

A flat thin non-conducting ring has an inner radius R1 and an outer radius R2 . The disk is uniformly charged with charge per unit area σ(>0) . (a) What is the electric field at the center, P, of the ring? Express your answer in terms of the following

asked by Anonymous on February 21, 2013
5. ## Physivs

A flat thin non-conducting ring has an inner radius and an outer radius . The disk is uniformly charged with charge per unit area . (a) What is the electric field at the center, , of the ring? Express your answer in terms of the following variables, if

asked by P on February 24, 2013
6. ## phsyics

A young girl sits at the edge of a dock by the bay, dipping her feet in the water. At the instant shown in the figure , she holds her lower leg stationary with her quadriceps muscle at an angle of 39 degree with respect to the horizontal. Use the

asked by Lisa on December 16, 2010
7. ## PHYSICSSSS

A train engine pulls out of a station along a straight horizontal track with five identical freight cars behind it, each of which weighs 88.0 kN. The train reaches a speed of 13.0 m/s within 6.50 min of starting out. Assuming the engine pulls with a

asked by Anonymous on February 12, 2012
8. ## PreCalculus

A kite has a lifting surface area of 630 square meters. Suppose the wind is blowing against the kite with a force of 100 newtons at an angle of 20 degrees above the horizontal. How much force is lifting the kite? I tried to draw a diagram, but I don't

asked by Katie on March 8, 2009
9. ## precalculus

one section of a suspension bridge has its weight uniformly distributed between twin towers that are 400 feet apart and rise 90 feet above the horizontal roadway. a cable strung between the tops of the towers has the shape of a parabola, and its center

asked by tim on October 25, 2014

A train engine pulls out of a station along a straight horizontal track with five identical freight cars behind it, each of which weighs 88.0 kN. The train reaches a speed of 13.0 m/s within 6.50 min of starting out. Assuming the engine pulls with a

asked by Anonymous on February 12, 2012
11. ## Physics

Suppose the slope of a beach underneath the ocean is 20 cm of dropoff for every 1.6 m of horizontal distance. A wave is moving inland, slowing down as it enters shallower water. What is its acceleration when it is 12 m from the shoreline? (Let the +x

12. ## physics

The goliath beetle, can reach a mass of 0.080 kg. Suppose a goliath beetle is placed on a slope that makes an angle of 37.0 degrees with the horizontal. Find the acceleration of the beetle along the slope, assuming the slope is frictionless. If a force of

asked by lalaglaze on October 11, 2009
13. ## Physics

A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 9200 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge

asked by Millie on February 24, 2012
14. ## Physics

A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 9200 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge

asked by Anonymous on February 17, 2016
15. ## Physics/Math

A cold package of hot dogs slides rightward across a frictionless floor through a distance d = 20.5 cm while three forces are applied to it. Two of the forces are horizontal and have the magnitudes F1 = 5.00 N and F2 = 1.00 N; the third force is angled

asked by Technoboi11 on March 1, 2007
16. ## physics 4a

A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.3 m/s and the tension in the rope is T = 21.8 N. Return to the original mass.

asked by Lis on October 25, 2018
17. ## Physics

A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 9200 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge

asked by Cici on February 17, 2016
18. ## physics

A 220 N crate is pushed along the ground with a horizontal force. The coefficient of kinetic friction is 0.21 and the coefficient of static friction is 0.31. The crate moves at a constant speed of 4.1 m/s. a) Draw a free-body diagram for the crate. b) What

asked by Kelsey on November 15, 2011
19. ## physics

The pressure in a section of horizontal pipe with a diameter of 2 cm is 143 kPa. Water flows through the pipe at 2.80 L/ s. If the pressure at a certain point is to be reduced to 103 kPa by constricting a section of the pipe, what should the diameter of

asked by Anonymous on May 31, 2016
20. ## physics

A rock thrown horizontally from a bridge hits the water below at a horizontal distance x directly below the throwing point. The rock travels a smooth parabolic path in time t. A.) Show that Therapy vertical distance of the bridge above water is 1/2gr2. B.)

asked by liz on March 29, 2012
21. ## Math

1) Solve: 8x ¨C (6x + 4) = 8 x = -2 2) -7x > 1/15 the solution set is: {x | x > -105} 3) Solve 5> -4x + 4 or 10 ¡Ü -4x +3 the solution to the inequality is: [-¡Þ, -7/4] U [-1/4,¡Þ] 4) Use < or > to make the statement true: -9 < 3 5) Graph the

asked by Algebra HELP!!! on November 5, 2008
22. ## Physics

a magnetic rail gun is constucted to give a space vehicle its intial launch velocity, thereby reducing the amount of fuel the vehicle has to carry. it consist of two very long parallel rails across which is positioned a large current carrying crossbar 7.65

asked by Jane on May 4, 2013
23. ## science

A shell is shot with an inital velocity of 20m/s at an angle 60 degrees with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment whose speed is immediately after the explosion zero falls

asked by Brian on January 30, 2007
24. ## Physics 12

"A pendulum consisting of an object of mass 1.3kg suspended from a string of length 1.9m is pulled aside so that the string makes an angle of 28 degrees with the vertical. At the instant the pendulum is released, what is the magnitude of the unbalanced

asked by solexgirl12 on November 17, 2008
25. ## Current/Magnetic force

A high voltage power line carries a current of 110 A at a location where the Earth's magnetic fields has a magnitude of 5.9 x 10^-4 T and points north at an angle of72 degrees below the horizontal (toward the earth surface). Find the direction and

asked by Matt on April 5, 2012
26. ## university physics

A mass m1 = 7.65 kg, is at rest on a frictionless horizontal surface and connected to a wall by a spring with k = 67.9 N/m, as shown in the figure. A second mass, m2 = 5.29 kg, is moving to the right at v0 = 15.3 m/s. The two masses collide and stick

asked by bülent on November 20, 2012
27. ## physics

Figure 6-43 shows a "conical pendulum", in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.060 kg, the string has length

asked by :) on December 5, 2010
28. ## Math

Cooling towers for nuclear reactors are often constructed as hyperboloids of one sheet because of the structural stability of that surface. Suppose all horizontal cross sections are circular, with a minimum radius of 200 feet occurring at a height of 600

asked by Vanna on March 12, 2009
29. ## physics

A 265g mass attached to a horizontal spring oscillates at a frequency of 1.00Hz . At t =0s, the mass is at x= 4.20cm and has vx = − 1*.0cm/s. Determine the position at t= 3.60s. So I already found that... The period is 1.0000 s The angular frequency is

asked by Ciara on December 6, 2014
30. ## fizik

A 2kg ball,A moves to the right with velocity 4 m/s collides with another 1kg ball,B moving in the opposite way with velocity 0.5m/s. after the collision, both ball move at 30 degree and 15 degree from horizontal. calculate the final velocity of each ball

asked by alya on April 6, 2011
31. ## physics

an archer at the edge of a cliff fires an arrow from a height of 14.6 m above the ground at the bottom of the cliff. the arrow just clears a rock on a pillar that is 21.7 m above the gound which is 45.2 m horizontally away from the archer.determine a,the

asked by Anonymous on September 28, 2012
32. ## PreCalc

The “Hatch Shell” in Boston has the arch with semi-elliptical form with a horizontal major axis. The base of the arch is 110-foot long and the highest part of the arch is 40 feet above the scene. Find the height of the arch of the “Hatch Shell” 33

asked by Jake on October 12, 2017
33. ## physics

an archer at the edge of a cliff fires an arrow from a height of 14.6 m above the ground at the bottom of the cliff. the arrow just clears a rock on a pillar that is 21.7 m above the gound which is 45.2 m horizontally away from the archer.determine a,the

asked by Anonymous on September 28, 2012
34. ## ap physics

A beam resting on two pivots has a length of L = 6.00 m and mass M = 87.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance ℓ = 4.00 m from the left end exerts a normal force n2. A woman of mass

asked by amar on March 8, 2015

Decided wheather work is being done or not. If it is being down write W. If not write N 1. You throw a baseball a distance of 20 meters. My answer: W 2. You lift a suitcase to put in the overhead luggage compartment of a plane. My answer: N 3. You push

asked by Kalie on April 28, 2014
36. ## physics

A 14.0-kg chair is at rest on a flat floor. The coefficient of static friction between the chair and the floor is 0.450. A person tries to move the chair by pushing on the chair with a force directed at an angle of 30„a below the horizontal. What is the

asked by mike on December 2, 2012
37. ## physics

A 14.0-kg chair is at rest on a flat floor. The coefficient of static friction between the chair and the floor is 0.450. A person tries to move the chair by pushing on the chair with a force directed at an angle of 30„a below the horizontal. What is the

asked by mike on December 2, 2012
38. ## geometry

A kayaker sees a bear in the distance. If the kayaker is 48 yards lower than the bear and the angle of elevation from the kayaker to the bear is 15°, find the horizontal distance from the kayaker to the bear. please help

asked by morgan on July 6, 2017
39. ## physics

In Figure 12-68, two identical, uniform, and frictionless spheres, each of mass 4.1 kg, rest in a rigid rectangular container. A line connecting their centers is at 45° to the horizontal. Find the magnitudes of the forces on the spheres from (a) the

asked by Sarah on December 29, 2010
40. ## physics

A 1520-N crate is to be held in place on a ramp that rises at 30.0° above the horizontal. The massless rope attached to the crate makes a 22.0° angle above the surface of the ramp. The coefficients of friction between the crate and the surface of the

asked by Sandhya on March 31, 2011
41. ## physics

A MAN HOLDS A 178 N BALL IN HIS HAND, WITH THE FOREARM HORIZONTAL. HE CAN SUPPORT HE BALL IN THIS POSITION BECAUSE OF THE FLEXOR MUSCLE FORCE, M, WHICH IS APPLIED PERPENDICULAR TO THE FOREARM. THE FOREARM WEIGHS 22 N AND HAS A CENTER GRAVITY. FIND THE

asked by kassy on November 8, 2016
42. ## Algebra

a model rocket is launched from a roof into a large field the path of the rocket can be modeled by the equation y = -0.06x^2 + 9.6 + 5.4 where x is the horizontal distance in meters from the starting point on the roof and y is the height in meters of the

asked by Alex on April 25, 2019
43. ## physics

A ball is thrown horizontally at 10.0 m/s from the top of a hill 50.0 m high. How far from the base of the hill would the ball hit the ground? I don't understand the following explained by Quittich (sp)? "Since there is no vertical component, the time to

asked by Jon on April 2, 2008
44. ## Physics help!

An extreme skier, starting from rest, coasts down a mountain that makes an angle of 26.7 ° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.248. She coasts for a distance of 10.5 m before coming to the edge of a

asked by Tiffany on February 24, 2011
45. ## Linear quadratics and inequalities

parabolic path that can be reprsented by the function y=-0.1x^2 +2.9x, where x represents the horizontal distance and y represents the vertical distance of the football. As the ball is rising, a Louisanna lineman jumps in a linear path that can be

asked by George on June 1, 2015
46. ## Math

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y= -0.06x^2 + 9.6 x + 5.4 where X is the horizontal distance, in meters from the starting point on the roof and y is the height in meters of

asked by Wonder Woman on May 14, 2019
47. ## 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)

asked by joshwa on November 2, 2012
48. ## Physics

A race car driver drives her 1500 kg car around a circular turn, which is banked at an angle of 20 degrees to the horizontal. If the car is traveling around the frictionless curve of radius 100m, a) What is providing the center-seeking force on the car?

asked by Anonymous on December 1, 2009
49. ## Math

The ramp shown below is used to move crates of apples to loading docks at different heights. When the horizontal distance AB is 12 feet, the height of the loading dock, BC, is 6 feet. What is the height of the loading dock DE? 10 feet 12 feet 17 feet*** 18

asked by Layla on December 6, 2015
50. ## Physics

Suppose a space capsule with an astronaut inside is launched from the top of a tower at some angle above the horizontal. a)While the capsule is in free fall, what are the acceleration of the astronaut and the capsule? b)If the astronaut measures his

asked by Anonymous on September 6, 2011
51. ## Physics

The sled is stuck in the snow. A child pulls on the rope and finds that the sled just barely begins to move when he pulls with a force of 24 N, with the rope at an angle of θ = 33° with respect to the horizontal. The mass of the sled is 14 kg. If the

asked by R on May 8, 2013
52. ## Physics

A child twirling a 0.0120kg ball on a string in a horizontal circle parallel to the floor. The radius of this circle is 0.358m. The ball traveling once around the circle is 2.08 seconds. a)Determine the centripetal force acting on the ball. b) If the speed

asked by Lauren on March 25, 2009
53. ## Phy

A 2.0 kg ball is placed against a spring of force constant 750N/m, which has been compressed 0.28m. The spring is released and the ball moves along a horizontal frictionless surface and up a ramp. Calculate the... a) maximum elastic potential energy of the

asked by Shanelle on January 14, 2013
54. ## Physics

A fuzzy die (m = 0.2 kg) hangs from the ceiling of a car. When the car accelerates forward along a horizontal road, the die swings backward so the the string supporting it makes an angle of 4 degree with the vertical. What is the acceleration of the car?

asked by Anonymous on October 3, 2016
55. ## Physics

A 0.28 kg softball has a velocity of 16 m/s at an angle of 34° below the horizontal just before making contact with the bat. What is the magnitude of the change in momentum of the ball while it is in contact with the bat if the ball leaves the bat with a

asked by John on May 13, 2014
56. ## science

A boy shoves his stuffed toy zebra down a frictionless chute, starting at a height of 1.75 m above the bottom of the chute and with an initial speed of 1.07 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding along a

asked by Lola on November 19, 2015
57. ## Physics

An air puck of mass 0.19 kg is tied to a string and allowed to revolve in a circle of radius 0.85 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of 0.437 kg is tied to it as

asked by Anonymous on February 26, 2016
58. ## physics

A child pulls a wagon by the handle along a flat sidewalk. She exerts a force of 80.0 N at an angle of 30.0 above the horizontal while she moves the wagon 12 m forward. The force of friction on the wagon is 34 N. Calculate the mechanical work done by the

asked by Rosie on October 28, 2014
59. ## physics

an airplane with a speed of 40.4 m/s is climbing upward at an angle of 54 degrees with respect to the horizontal. When the planes altitude is 520 m, the pilot releases a package. a. calculate the distance along the ground measured from a point directly

asked by mo on September 23, 2012
60. ## physics

a) An infinite number of changes each equal to q are placed along the x-axis at x = 1, x = 2, x = 4, x = 8, . . . and so on. Find the potential and the esoteric at x = 0 due to this set of changes. What will be the potential and electric field if, in the

asked by Sandhya on June 17, 2009
61. ## physics

a) An infinite number of changes each equal to q are placed along the x-axis at x = 1, x = 2, x = 4, x = 8, . . . and so on. Find the potential and the esoteric at x = 0 due to this set of changes. What will be the potential and electric field if, in the

asked by Sandhya on June 17, 2009
62. ## physics

if co-efficient of friction between tyre and road is 0.5, what is smallest radious at which car turn on a horizontal road when its speed is 30 km/hr? 2.Q calculate angular speed of how hand of a clock? 3.Q A what angle must cut rack with a bend of 250m

asked by vishal on September 27, 2010
63. ## physics

a) An infinite number of changes each equal to q are placed along the x-axis at x = 1, x = 2, x = 4, x = 8, . . . and so on. Find the potential and the esoteric at x = 0 due to this set of changes. What will be the potential and electric field if, in the

asked by Sandhya on June 17, 2009
64. ## physics

a ball roles off a horizontal table at 0.30 m/s and strikes the ground 0.15m horizontally from the base of the table. (a) how high is the table (b) if another ball roles off the same table at 0.60 m/s how far from the base of the table does it hit.

asked by zeinab on February 9, 2013
65. ## physics

a ball roles off a horizontal table at 0.30 m/s and strikes the ground 0.15m horizontally from the base of the table. (a) how high is the table (b) if another ball roles off the same table at 0.60 m/s how far from the base of the table does it hit.

asked by zeinab on February 9, 2013
66. ## Physics

After an unfortunate accident at a local warehouse you have been contracted to determine the cause. A jib crane collapsed and injured a worker. The horizontal steel beam had a mass of 88.50 kg per meter of length and the tension in the cable was T = 11.78

asked by Morgan on November 15, 2011
67. ## Physics

A spring is mounted horizontally. A crate which has a mass of 8.5kg is pressed against the spring with a force of 350N. As a result the spring is compressed a distance of 82.0cm. The mass is then released and is allowed to slide along the horizontal,

asked by Rob on February 25, 2012
68. ## physics

A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. The ball is hit with an initial velocity of 23.0 m/s at an angle of 54.0° above the horizontal. How high will

asked by Abdul on February 3, 2013
69. ## PHYSICS

A train engine pulls out of a station along a straight horizontal track with five identical freight cars behind it, each of which weighs 88.0 kN. The train reaches a speed of 13.0 m/s within 6.50 min of starting out. Assuming the engine pulls with a

asked by Anonymous on February 8, 2012
70. ## physics

A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.3 m/s and the tension in the rope is T = 21.8 N. Return to the original mass.

71. ## physics

A 1560 rocket is to be launched with an initial upward speed of 53.0 . In order to assist its engines, the engineers will start it from rest on a ramp that rises 53 above the horizontal (the figure ). At the bottom, the ramp turns upward and launches the

asked by Anonymous on December 14, 2011
72. ## physic

A particle is pushed horizontally by a constant horizontal force of magnitude F, which starts from the rest at x=0 in the positive ݔ direction. During the movement, it is also acted by the air resistance force that equivalent to bv, where b is the

73. ## Algebra I

I'm stuck on this problem please help me find the range of this equation y = (x^2 - 4)/(x^2 - x - 12) I know that it is [1/3,-infintiy]U[?,infinity] yes I'm having trouble with that ? At first I was like ok there should be a horizontal asymptote at y=1

asked by Kate on July 23, 2010
74. ## Physics

A 0.50 kg ball is moving with a velocity of 8.0 m/s along a horizontal floor. It hits another ball with a mass of 0.80 kg and moving at 10.0 m/s in the opposite direction. If the first ball bounces back with a velocity of 12 m/s, with what velocity and in

asked by Johnrey on November 18, 2014
75. ## Physics

A force of 480 N is applied to a stationary wooden box in one direction and an 920 N horizontal force is applied in the opposite direction. What additional force is necessary for the box to remain stationary?

asked by Molida on September 5, 2015
76. ## Physics

A ball thrown straight upward returns to its original level in 2.30 . A second ball is thrown at an angle of 38.0 degrees above the horizontal. What is the initial speed of the second ball if it also returns to its original level in 2.30 ?

asked by Julia on September 27, 2009
77. ## physics

A horizontal pipe contains water at a pressure of 108 kPa flowing with a speed of 1.5 m/s. The pipe narrows to one-half its original diameter. What are the speed and the pressure of the water when the pipe narrows?

asked by aok on December 7, 2010
78. ## algebra

why is the graph of an inverse flipped over the line y=x instead of another line? The inverse function of f(x) tells you what value of x you get for a given value of y. When you flip the graph about the 45 degree y=x line, it is the same as using the value

asked by Deidre on December 26, 2006
79. ## Physics

A 2.50 mass is pushed against a horizontal spring of force constant 26.0 on a frictionless air table. The spring is attached to the tabletop, and the mass is not attached to the spring in any way. When the spring has been compressed enough to store 15.0 of

asked by Lauren on October 21, 2011
80. ## PHYSICS URGENT!!!

Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

asked by Shoaib on November 22, 2016

Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

asked by Daniel on November 22, 2016
82. ## Differential Equations

Consider the system shown below of two masses of mass m, coupled together between two fixed walls via springs with varying spring constants. Let x(t) and y(t) be the horizontal displacements of the two masses as a function of time. (a)Write down a system

asked by Smith on October 13, 2014
83. ## very hard PHYSICS QUESTION

Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

asked by Matthew on November 21, 2016
84. ## PHYSICS

Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

asked by Liam on November 18, 2016
85. ## physics

Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

asked by Liam on November 17, 2016
86. ## Physics

Suppose that a 200g mass (0.20kg) is oscillating at the end of a spring upon a horizontal surface that is essentially friction-free. The spring can be both stretched and compressed and have a spring constant of 240N/m. It was originally stretched a

asked by Kayla on March 13, 2012
87. ## PHYSICS

Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 1.5 cm, and the radius of the nozzle is 0.42 cm. The speed of the water in the pipe is 0.68 m/s. Treat the water as an ideal fluid, and determine the absolute

asked by Anonymous on November 17, 2015

A 160-N child sits on a light swing and is pulled back and held with a horizontal force of 100N. The tension force of each of the two supporting ropes is: A uniform plank is supported by two equal 120N forces at X and Y at both ends of the plank.The

asked by Diane on December 10, 2006
89. ## math,algebra

can someone just set up the equations for me for this problem. thanks... Problem #1 A plane took 1 hour longer to travel 560 miles on the first portion of a flight than it took to fly 480 miles on the second portion. If the speed was the same for each

asked by jasmine20 on April 17, 2007
90. ## physics

An extreme skier, starting from rest, coasts down a mountain slope that makes an angle 25.0° with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.200. She coasts for a distance of 13.8 m before coming to the edge of

asked by Kelly on July 29, 2011
91. ## Physics

An extreme skier, starting from rest, coasts down a mountain slope that makes an angle of 25.0o with the horizontal. The coefficient of kinetic friction between her skis and the snow is 0.200. She coasts down a distance of 10.4 m before coming to the edge

asked by Eisya on August 25, 2017
92. ## horizontal asymptotes

find the HAs of y = (x-9) / sqr(4x^2 + 3x+ 2) What happens to y as x goes to +/- infinity? Specifically, is y approaching some limit from above or below? ?? I see your question was to just find the horizontal asymptotes and not to evaluate the function's

asked by brian on September 27, 2006
93. ## Physis

The question: You are standing on a large sheet of frictionless ice and holding a large rock. In order to get off the ice, you throw the rock so it has velocity 11.9 m/s relative to the earth at an angle of 36.8∘ above the horizontal. If your mass is

asked by RK on December 13, 2015
94. ## physics

an extreme skier starting from rest, coasts down a mountain that makes an angle 25.0¨¬with the horizontal. The coeffiecient of kinetic friction between her skis and the snow is 0.200. She coasts for a distance of 8.4m before coming to the edge of a

asked by sharon on October 31, 2009
95. ## physics...plz help me

A cannon is pointed at a 60 degree angle relative to a flat, horizontal field. It fires a projectile with a muzzle speed of 1500 ft/s. Then the gunners change the angle to 30 degree, reload the cannon, and 5.0 seconds later, fire. What is the required

asked by mary on December 10, 2008
96. ## MATH!!

How do I find vertices of a curve and a hyperbola? This may help: http://www.mathwords.com/v/vertices_of_a_hyperbola.htm The vertex is where the tangent to the curve chages direction most rapidly. When the curve is symmetric about vertical or horizontal

asked by BOB? on December 6, 2006
97. ## physics help

I know that the answer to this problem is (0.2237232293) and to begin it by making a force body diagram, but I need help setting up the equation(s). Thanks! A box rest on an incline making a 30 angle with the horizontal. It is found that a parallel force

asked by jessica on October 3, 2014
98. ## science

water flows steadily through a horizontal pipe of non uniform cross section. if the pressure of water is 4*10^4 N/m^2 at a point where the velocity of flow is 2ms^-1 and cross section is 0.02 m^2 what is the pressure at a point where cross section reduces

asked by Anonymous on August 28, 2013
99. ## math

the function h(x)=1/98x^2 h(x) is the height of part of a rollercoaster track, when x is the horizontal distance in feet from the center of this section of the track the tower that supports the this part of the track are the same height and are 150 feet

asked by peg on December 21, 2013
100. ## Physics

A 30m bar with a mass of 20kg is being lifted by a string. The bar makes an angle of 55 degrees above horizontal (between the bar and ground). The string is attached to the ceiling vertically. What is the tension on the string? What is the normal force

asked by Riley on July 16, 2017