# 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 32
1. ## physic

An object with mass m1 = 5.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m2 = 10.0 kg, as shown in the figure below. Find the acceleration of each

asked by Chan on October 16, 2009
2. ## Physics

A plane drops a bomb from an altitude of 10,000m. a. Determine the time the bomb is in the air. b. Determine the velocity the bomb would have right before it hits the ground. c. Before the bomb is launched the plane has a horizontal velocity of 92m/s.

asked by Alex on November 19, 2012
3. ## math

A uniform horizontal beam weighing 136 kg is 10.4 m long and is supported by columns at each end. A vertical load of 1275 kg is applied to the beam x metres from the right end. Find x so that the reaction at the left column is 540 kg. Round your answer to

asked by harshdeep on February 27, 2015
4. ## Physics

A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic force on the wire is true.

asked by Katie on November 14, 2010
5. ## Physics

An 8.00g bullet is fired at 220m/s into a 250g wooden block that is initially at rest. The bullet remains in the block and after the collision the two slide up a 30 degree incline. a) Solve for the velocity of the bullet block after the collision. b)

asked by Nicole on November 23, 2014
6. ## physics

An 8.0 g bullet is fired horizontally into a 9 kg block of wood and sticks in it.The block,which is free to move,has a velocity of 40cm/s after impact.Find the initial velocity of a bullet. You know the momentum (total mass) of the bullet/block combo after

asked by fluffy on September 23, 2006
7. ## Physics

A bullet of mass m travelling at speed vo in the direction shohwn above strikes a block of mass M and embeds itself in it. The block is sitting on the edge of a frictionless table of height H and is knocked off of the table by the collision. a) What is the

asked by Joe on January 9, 2017
8. ## Physics

Really need help with this asap plz~ there is a 4kg wooden block on top of a wooden ramp forming an angle of 37 degrees above surface.The block is placed 1.2 m up on the ramp and the ramp is connected to another wooden flat board.So when the block slides

asked by Joanne on December 8, 2013
9. ## Physic

If a 35 g arrow moving at 160 km/h penetrates a block of wood suspended by a rope, what impulse is delivered to the block? (Answer: 1.56kg * m/s) What velocity will the wood block acquire if its mass is 7.0 kg? Ignore the mass of the arrow compared to that

asked by Anonymous on April 22, 2014
10. ## physics

As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from

asked by jose on January 4, 2016
11. ## Physics

Two blocks of masses M and 5M 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, as seen in the figure below:

asked by Brian on June 12, 2010
12. ## Physics

A block of mass m 1 sits at rest on a table over a hole in the table. From below the table, a bullet of mass m 2 is fired vertically upwards into the block. The bullet imbeds itself in the block. The block and bullet rise to a maximum height h. What is the

asked by Jason on August 6, 2012
13. ## phsyics

A traveler takes a trip with a reluctant pack mule. He finds that he has to exert a constant 470 N horizontal force on the mule to keep the mule moving at a constant speed of 0.9 m/s for a distance of 1.8 km across a horizontal plane. Compute the amount of

asked by Austin on November 1, 2011
14. ## phsyics

A traveler takes a trip with a reluctant pack mule. He finds that he has to exert a constant 470 N horizontal force on the mule to keep the mule moving at a constant speed of 0.9 m/s for a distance of 1.8 km across a horizontal plane. Compute the amount of

asked by Austin on November 1, 2011
15. ## phsyics

A traveler takes a trip with a reluctant pack mule. He finds that he has to exert a constant 470 N horizontal force on the mule to keep the mule moving at a constant speed of 0.9 m/s for a distance of 1.8 km across a horizontal plane. Compute the amount of

asked by Austin on November 1, 2011
16. ## AP Physics

A small block with mass 0.035 kg slides in a vertical circle of radius 0.425 m on the inside of a circular track. During one of the revolutions of the block, when the block is at the bottom of its path, point A, the magnitude of the normal force exerted on

asked by Hannah on March 22, 2013
17. ## Math

The bottom of the ladder on a horizontal flat surface rests against a wall. It makes an angle of elevation of 35°. The bottom of the ladder is 42 ft from the base of the wall. How long is the ladder? Round your answer to the nearest whole number. Do not

asked by Jeb on August 2, 2016
18. ## PHYSICS

A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity.

asked by Mae on August 23, 2014
19. ## Physics

A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?

asked by JOSH on August 22, 2014
20. ## Physics

A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?

asked by YESHA on August 22, 2014
21. ## Physics

you are driving up a long, inclined road. After 1.2 miles you notice that signs along the roadside indicate that your elevation has increased by 530ft. a. What is the angle of the road above the horizontal? b . How far do you have to drive to gain an

asked by ASB on March 13, 2012
22. ## Physics

A skier leaves the ramp of a ski jump with a velocity of 14 m/s 15.00 above the horizontal. She lands on a slope below inclined at 500. Neglect air resistance and find the distance from the ramp to where the jumper lands.

asked by Michael on January 30, 2018
23. ## physics

A box of mass 5 kg is pulled along a horizontal frictionless surface by a force of 40N inclined @ 30dgrees. Calculate A)the work done by the force over a distance. B)the speed gained by the box after travelling 10m.

asked by Luc on August 3, 2011
24. ## math

A plane is flying due east at 600 km/h at a constant altitude. From an observation point P on the ground, the plane is sighted on a bearing of 320◦. One minute later, the bearing of the plane is 75◦ and its angle of elevation is 25◦. Show that the

asked by Connor on July 17, 2017
25. ## Honors Physics

A plane traveling at 300.0 km/h attempts to land on a 500 m runway. The plane’s engines and brakes accelerate uniformly at –5.0 m/s2. Will the plane be able to land safely?

asked by Jonathan on October 16, 2012
26. ## SCIENCE NEED HELP

A plane travels from California to New York. The plane travels about 5000 km in 5 hours. What is the plane's velocity? (Give directions as North, South, East, or West.)

asked by NEED HELP on February 12, 2013
27. ## Physics

A small plane is 150km south of the equator. The plane is flying at 220km/h at a heading of 30 degrees to the west of north. In how many minutes will the plane cross the equator?

asked by Cassie on October 14, 2012
28. ## physics

An Air plane flys from san fransico to new-york about 4800km at speed of 300m/s how much time does trip take as measured by observer in the plane?B and by observer in the plane?

asked by Best on January 24, 2016

A pilot direct his plane north and the plane's velocity in still air is 245km/hr. If there is a strong wind of 105km/hr blowing west, what is the ground velocity of the plane?

asked by Sarah on May 28, 2013
30. ## Math- intersection of planes

Show that the line [x,y,z]=[10,5,16]+t[3,1,5] is contained in the plane x+2y-z-4=0 I tries writing the vector equation in parametric form and then substituting it into the respective x,y,z in the plane, after simplifying I get 0t=0 does this mean that the

asked by Shaila on September 1, 2010
31. ## Physics

A beaker of mass 5kg containing oil of mass 17.4 kg and density 8.5 x102kg/m3 rests on the scale A block of iron of mass 6.7kg is suspended from the spring scale and completely submerged in the oil as shown in Figure below. Determine the equilibrium

asked by G on November 3, 2014
32. ## College Physics (repost)

A 4.1 kg block is attached to a spring with a force constant of 550 N/m , as shown in the figure. Find the work done by the spring on the block as the block moves from A to B along paths 1 and 2. W=? How do your results depend on the mass of the block?

asked by Jenna on October 12, 2009
33. ## Physics

A 4.1 kg block is attached to a spring with a force constant of 550 N/m , as shown in the figure. Find the work done by the spring on the block as the block moves from A to B along paths 1 and 2. W=? How do your results depend on the mass of the block?

asked by Jenna on October 12, 2009
34. ## Physics

Masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley. m1 rests on the floor and m2 rests on a fixed incline of 40degrees. The masses are released from rest, and m2 slides 1.00 m down the incline in 4.0

asked by Wendy on November 6, 2010
35. ## Math

A plane flys 230 km due north. The wind is blowing west at 85 km. what direction is the plane flying. Calculate the actual speed of the plane. What is the hearing from North?

asked by Georgia on September 14, 2015
36. ## Math

A plane flys 230 km due north. The wind is blowing west at 85 km. what direction is the plane flying. Calculate the actual speed of the plane. What is the hearing from North?

asked by Georgia on September 13, 2015
37. ## Physics

As your plane speeds down the runway during takeoff, you decide to determine the acceleration of the plane. you take your yo-yo and note that when you suspend it, the string makes an angle of 22 degrees with the vertical. What is the acceleration of the

asked by Anonymous on September 26, 2010
38. ## physicss

A 0.005kg bullet is fired at 400m/s straight into a stationary 1.0kg block of wood. The bullet exits the far side of the block and continues on the same straight line. The block also moves off in this same direction with a velocity of 1.2m/s. Calculate the

asked by taryn on October 2, 2012
39. ## physics

A 0.005kg bullet is fired at 400m/s straight into a stationary 1.0kg block of wood. The bullet exits the far side of the block and continues on the same straight line. The block also moves off in this same direction with a velocity of 1.2m/s. Calculate the

asked by taryn on October 2, 2012
40. ## physics

Two blocks, one 5.0 Kg and the other 2.0 Kg are suspended from a pulley such that the 5.0 Kg block is 4.0 m above the 2.0 Kg block and 5.0 m above the floor. The blocks are released from rest. a. At the moment that the two blocks pass each other, what are

asked by Anonymous on November 18, 2010
41. ## Physics

How would I go about calculating the acceleration of a mass being pulled up an inclined plane at an angle. Given - mass, and presumably angles So the object is being pulled up an angle at another angle.

asked by Cait on December 6, 2009
42. ## Vectors

A plane is steering east at a speed of 240km/h. What is the ground speed of the plane if the wind is from the northwest at 65km/h. What is the plane's actual direction?

asked by Kim on May 25, 2018
43. ## Vectors

A plane is steering east at a speed of 240km/h. What is the ground speed of the plane if the wind is from the northwest at 65km/h. What is the plane's actual direction?

asked by Kim on May 25, 2018
44. ## Calculus

Verify please and thank you~ Does the line (x-7)/3=(y+8)/6=(z+4)/5 and the point P(10,-2,1) determine a plane? Answer: Yes, it is a plane because when I substituted the point P(10,-2,1) into the equation, I got the coordinates (1,1,1) If the coordinate

asked by Jenny on April 8, 2012
45. ## Calculus and vectors

Verify please and thank you~ 1. Does the line (x-7)/3=(y+8)/6=(z+4)/5 and the point P(10,-2,1) determine a plane? Answer: Yes, it is a plane because when I substituted the point P(10,-2,1) into the equation, I got the coordinates (1,1,1) If the coordinate

asked by Antia on April 9, 2012
46. ## ALGEBRA 2

A plane takes off from an aiport and flies east at a speed of 350 mi/h. Ten minutes later, a second plane takes off from the same airport and flies east at a higher altitude at a speed of 400 mi/h. How long does it take the second plane to overtake the

asked by Emily on August 16, 2009
47. ## math

Two planes leave simultaneously from Chicago's O'Hare Airport, one flying due north and the other due east (see figure). The northbound plane is flying 50 miles per hour faster than the eastbound plane. After 3 hours the planes are 2840 miles apart. Find

asked by Anonymous on February 7, 2019
48. ## physics

Part 1 A 15.6 kg block is dragged over a rough, hor- izontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234. Find the work done by

asked by erika on February 25, 2011
49. ## physics

A 1.4-m-long massless rod is pivoted at one end and swings around in a circle on a frictionless table. A block with a hole through the center can slide in and out along the rod. Initially, a small piece of wax holds the block 20 from the pivot. The block

asked by Anonymous on April 28, 2012
50. ## physics

a small block of mass M=0.050 kg is released from rest at the top (h=0.60 m) of the curved frictionless ramp shown above. The block slides down the ramp and collides with a larger block of mass 1.5M=0.075 kg at rest at the bottom of the incline. The larger

asked by emilyy on November 13, 2011
51. ## physics

A 500 g steel block rotates on a steel table while attached to a 2.0-m-long massless rod. Compressed air fed through the rod is ejected from a Inozzle on the back of the block, exerting a thrust force of 3.5 N. The nozzle is 70^\circ from the radial line,

asked by Kathleen on November 10, 2010
52. ## Trigonometry

A boy is twirling a model plane on a string that is 2 meters long. If he twirls the plane at 0.4 revolutions per second, how far does the plane travel in 5 minutes? Give your answer in meters to 2 decimal places.

asked by Rebekah on November 6, 2014
53. ## Math

A plane left Atlanta at 11:30 AM and flew to an airport near Boston. The plane was due to arrive at 3:15 PM. The plane arrived 25 minutes late. The time of the trip was: Is the answer 4 hours and 10 minutes?

asked by stephanie on August 3, 2018
54. ## Math

If a plane has intercepts at 2a, 3a, and 4a along the three Cartesian coordinates where a is the lattice constant of the cubic cell, (i) find the Miller indices of the plane and (ii) find the distance between the neighboring planes parallel to this plane

asked by Chandu on September 14, 2014
55. ## Math

Two small planes start from the same point and fly in the same direction. The first plane is flying 35 mph slower than the second plane. In 2 hrs, the planes are 530 mi apart. Find the rate of the slow plane.

asked by Mathew on February 4, 2010
56. ## Circular Motion Physics

A coin with mass 3.1 grams is at rest atop a wooden block of mass 20 grams. The block is on a spinning platform with a 12 centimeter radius. The coefficients of friction between the platform and the wooden block are μs = 0.75 and μk = 0.64 The

asked by Emily on November 24, 2015
57. ## Physics

an airplane is flying in a horizontal of radius 1.0 km what must be the speed of the plane if the pilot is to experience a centripetal acceleration three times that of gravity.

asked by King on March 8, 2013
58. ## College Physics

A 3.0 kg black is at reat on a horizontal floor. If you push horizontally on the 3.0 kg block with a force of 12.0 N, it just starts to move. What is the coefficient of static friction?

asked by Tam on September 14, 2010
59. ## physics

The displacement of a block attached to a horizontal spring is given by x=0.5sin(7.8t−1.06)m What is the earliest time (t>0) at which x=0.16m? Find the acceleration when x=0.44m helppppppp

asked by kara on February 13, 2017
60. ## physics

Question part Points Submissions 1 2 0/1 0/1 0/10 0/10 Total 0/2 A 3.5-kg block slides with a speed of 1.6 m/s on a frictionless, horizontal surface until it encounters a spring.

asked by Anonymous on February 25, 2011
61. ## Geometry

I need help with these problems: 11. The 2 captains of the school football team meet with the 3 captains of another team for the coin toss. If each captain shakes hands with each captain from the opposing team, how many different handshakes occur? 14. Find

asked by mysterychicken on June 17, 2012
62. ## physics

A 2 kg block with initial velocity +2m/s collides with a stationary 6 kg block with initial velocity 0m/s on a frictionless surface. After the collision, the 2 kg block is moving at –1 m/s and the 6kg block is moving to the right at +1 m/s. Show that the

asked by mable on December 12, 2016
63. ## physics

There is a 2kg block resting on a table with a 5kg block attached to the right hanging off the edge of the table and a 4 kg block attached to the left also hanging off the table find the acceleration of the 5 kg block if coefficient of static equals the

asked by joe on October 10, 2013
64. ## math

Ten minutes after a plane leaves the airport, it is reported that the plane is 80 miles away. What is the average speed of the plane, in miles per hour?

asked by vincent on July 17, 2013
65. ## Physics

A bullet of mass 1.9×10−3 kg embeds itself in a wooden block with mass 0.987 kg, which then compresses a spring (k = 120 N/m) by a distance 3.5×10−2 m before coming to rest. The coefficient of kinetic friction between the block and table is

asked by Bartholomew on October 8, 2010
66. ## science

A uniform plank of a seesaw is 5 meter long and supported at its centre.a boy weighing 40kgf sits at a distance 1.5meter from one end of the seesaw.where must a girl weighing 25kgf sit on the other end of the seesaw so as to balance the boy.

asked by nitesh srivastava on April 28, 2015
67. ## Physics

An ideal spring with a stiffness of 329 N/m is attached to a wall, and its other end is attached to a block that has a mass of 15.0 kg. The spring/block system is then stretched away from the spring's relaxed position until 57.0 J of mechanical energy is

asked by John on December 4, 2009
68. ## mit

1 point possible) A uniform disc of radius R and mass m1 is rotating with an angular speed ωi about an axis passing through its center and perpendicular to the disc's plane. A small box of mass m2, initially at the center of the disc, moves away from the

asked by juanpro on March 23, 2016
69. ## physics

A 506 g block is released from rest at height h0 above a vertical spring with spring constant k = 500 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 18.4 cm. How much work is done (a) by the block

asked by VitaX on October 16, 2010
70. ## Physics

A block with a mass m = 3.50 kg sits on a surface with a coefficient of static friction µs = 0.520. A spring with spring constant k = 75.0 N/m is hooked onto the block, and is slowly pulled horizontally, gradually stretching the spring. (a) When the

71. ## Physics

A plane leaves Toronto and flies with an airspeed of 2.20 x 10^2 km/h always pointing due east. A wind is blowing from the north at 8.0 x 10^1 km/h. a) What is the plane's velocity relative to the ground? b) What is the plane's displacement from Toronto

asked by Alex on October 28, 2007
72. ## Plane Trigometry

You observe a plane approaching overhead and assume that its speed is 550 miles per hour. The angle of elevation of the plane is 16 degrees at one time and 57 degrees one minute later. Approximate the altitude of the plane.

asked by Horum on February 14, 2013
73. ## Math

Two small planes start from the same point and fly in the opposite directions. The first plane is flying 35 mph slower than the second plane. In 2 hrs, the planes are 530 mi apart. Find the rate of the slow plane.

asked by Matthew on February 3, 2010
74. ## Geometry

Is it true for a reflection on a plane... To reflect across the: xy-plane (x,y,z)→(x,y,−z) xz-plane (x,y,z)→(x,−y,z) yz-plane (x,y,z)→(−x,y,z)? Is that true for all planes or just a few particular ones?

75. ## physic

two force10n and20n are inclined at an angle 60 degree to each.find the resultant forces are now made to be inclined at120degree to each other,find the magnitude of the new resultant force

asked by precious on October 3, 2016
76. ## Physics and Math

A small ball with a mass of 1 kg rolls down a long frictionless inclined ramp, which is at an angle 3o Degree above the horizon. A linear spring, whose length is not negligible, is attached to the bottom of the ramp. The ball is released from a distance of

asked by Anonymous on January 8, 2015
77. ## math

At an airport, a flight controller was in a tower 40m above the ground. When she first observed a plane it was at an angle of elevation of 12 (degrees) from her line of sight and flying at a constant altitude (height) The plane had a constant speed of

asked by alice on May 19, 2013
78. ## Physics

A 263-g block is dropped onto a vertical spring with force constant k = 2.52N/cm. The block sticks to the spring, and the spring compress 11.8 cm before coming momentarily to rest. while the spring is being compressed, how much work is done: (a) By the

asked by Kampamba Nsofu on May 24, 2017
79. ## physics

A uniform rod of mass M and length d is initially at rest on a horizontal and frictionless table contained in the xy plane, the plane of the screen. The rod is free to rotate about an axis perpendicular to the plane and passing through the pivot point at a

asked by tyger2020 on December 19, 2018
80. ## physics

A man doing a slow push-up is approximately in static equilibrium. His body is horizontal, with his weight of 755 N supported by his hands and feet, which are 1.34 m apart. One hand rests on a spring scale, which reads 270 N. If each hand bears an equal

asked by JOHN on March 26, 2012
81. ## Physics

A man doing a slow push-up is approximately in static equilibrium. His body is horizontal, with his weight of 750 N supported by his hands and feet, which are 1.36 m apart. One hand rests on a spring scale, which reads 268 N. If each hand bears an equal

asked by Dave on December 8, 2015
82. ## science

A 4.0-kg block and a 2.0-kg block are connected to opposite ends of a relaxed spring of spring constant 300 N/m. The blocks are pushed toward each other for 0.5 s. The 4.0-kg block is pushed with a force of 53 N , and the 2.0-kg block is pushed with a

asked by gatanga on April 21, 2019
83. ## colledge physics

A block of mass 0.78kg starts from rest at point A and slides down a frictionless hill of height h. At the bottom of the hill it slides across a horizontal piece of track where the coefficient of kinetic friction is 0.29. This section (from points B to C)

asked by shyne on October 19, 2012
84. ## physics

Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk = 0.27

asked by Diane on November 30, 2012
85. ## physics

Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk = 0.27

asked by Diego on November 30, 2012
86. ## AP Physics

Block A (mass 40 kg) and block B (mass 80 kg) are connected by a string of negligible mass as shown in the figure. The pulley is frictionless and has a negligible mass. If the coefficient of kinetic friction between block A and the incline is μk = 0.27

asked by Ashley on November 29, 2016
87. ## Geometry

a line RS is perpendicular to plane p at R. If T is a second point not on. Can RT be perpendicular to plane P? Lines AB and LM are each perpendicular to plane P. Are AB and LM coplanar? Plan P is perpendicular to AB at B. Plane Q intersects AB at P. Can Q

asked by Camile on May 17, 2011
88. ## Math

a line RS is perpendicular to plane p at R. If T is a second point not on. Can RT be perpendicular to plane P? Lines AB and LM are each perpendicular to plane P. Are AB and LM coplanar? Plan P is perpendicular to AB at B. Plane Q intersects AB at P. Can Q

asked by Camile on May 17, 2011
89. ## Physics

A jet plane lands with a speed of 110 m/s and can accelerate with a maximum magnitude of 7.00 m/s2 as it comes to rest. (a) From the instant the plane touches the runway, what is the minimum time interval needed before it can come to rest? (b) Can this

asked by KM on September 10, 2011
90. ## physics

Cheerleaders at sporting events will often use a bullhorn to make themselves louder. A bullhorn is simply a hollowed out cone - you speak into the narrow end and your voice comes out the wide end, channeled by the cone so it is louder than it would be

asked by Gk on September 20, 2013
91. ## physics

In Figure (1), a 3.50 g bullet is fired horizontally at two blocks at rest on a frictionless table. The bullet passes through block 1 (mass 1.13 kg) and embeds itself in block 2 (mass 1.75 kg). The blocks end up with speeds v1 = 0.600 m/s and v2 = 1.32 m/s

asked by kristy on November 13, 2013
92. ## Physics

The system shown in the ﬁgure is in equilibrium. A 15 kg mass is on the table. A string attached to the knot and the ceiling makes an angle of 54◦ with the horizontal. The coeﬃcient of the static friction between the 15 kg mass and the surface on

asked by Hardy on November 1, 2012
93. ## physics

A plane leaves toronto and flies with an airspeed of 360.0 km/h always pointing east. A wind is blowing at 65.0 km/h [S 35.0 degrees E]. What is the plane's velocity relative to the ground? What is the plane's displacement from Toronto after flying for 2.4

asked by eggo on October 7, 2018
94. ## Physics

A) An object with mass M=10kg is held on a incline. The object and the incline surfaces have a static friction coefficient of 0.3. What is the maximum angle at which the object starts moving? B) Again, suppose that the force in A) is a push applied

asked by Timothy on October 16, 2016
95. ## physics

A 50.0-kg block is being pulled up a 13 degree slope by a force of 250 N which is parallel to the slope. The coefficient of kinetic friction between the block and the slope is 0.200. What is the acceleration of the block?

asked by Kathy on November 1, 2011
96. ## physics

a skier decides to ski down a hill inclined at 12 degrees to the horizontal. He pushes on his poles and starts to slide down the slope. If his initial speed after he stops pushing is 4.7 m/s and us= 0.28, how far will mr.grewal slide down the hill before

asked by Tom on April 6, 2015
97. ## Physics

A fighter plane is directly over an anti aircraft gun at a time t=0. The plane has a speed of 600km/hr. A shell is fired from an anti aircraft gun at the time t=0, in order to hit the plane. The muzzle velocity V is 1100m/s. Determine the distance the gun

asked by Gabriel on January 20, 2016
98. ## physics

A 750g block is attached to a vertical spring whose stiffness constant is 1N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? How long does it take the block to reach the lowest

asked by kara on February 13, 2017
99. ## physics

A block having mass 90 kg.just contact the top of the free end of spring. (1) find the maximum deflection of spring if the block is released instantaneously with zero initial velocity. (2) if the block is very gradually lowered on the spring.

asked by Sarsi on October 23, 2013
100. ## physics

A 350 g block is attached to a vertical spring whose stiffness constant is 12 N/m . The block is released at the position where the spring is unextended. a) What is the maximum extension of the spring? b)How long does it take the block to reach the lowest

asked by Az on February 3, 2014