# 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 95
1. ## 8th Grade Math (Algebra1)

I actually have a few different problems that are giving me trouble. The first: We have to use the motion problem formula: d=rt and make a table containing the elements: rate: * time: = distance ------------------------------ label #1 label #2 The

asked by Nicole C. on February 3, 2009
2. ## Physics

I need help with this question...A skateboarder, starting from rest, rolls down a 12.0-m ramp. When she arrives at the bottom of the ramp her speed is 8.90 m/s. (a) Determine the magnitude of her acceleration, assumed to be constanIf the ramp is inclined

asked by Nancy on October 8, 2010
3. ## physics!!

A skateboarder, starting from rest, rolls down a 14.0-m ramp. When she arrives at the bottom of the ramp her speed is 7.40 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 20.5° with respect to

asked by michelle on October 5, 2010

A skateboarder, starting from rest, rolls down a 14.0-m ramp. When she arrives at the bottom of the ramp her speed is 7.40 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 20.5° with respect to

asked by michelle on October 6, 2010
5. ## phy

1. A Uniform rod AB 3m long weighing 3 Kg is held horizontally by two strong vertical strings at its ends. A weight of 7 kg is hanging on the rod at a distance of 1m from end A and another weight of 12 Kg is hanging at 0.5 m from end B.(a)Make the free

asked by shiva on August 24, 2010
6. ## Physics

Can't get correct answer An object weighing 340 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 260 N. Immersed in oil, the object weighs 290 N. (a) Find the density of the object. kg/m3 (b) Find the

asked by Elisa on July 22, 2008
7. ## science

How do you use the metric system? You use if for weighing, measuring length, measuring volume, and many other things. If you have a specific question, post it. How do you use it? for instance... 1000mg=(blank)grams and how do you figure it out? You

asked by questiongirl on November 13, 2006
8. ## physics

A woman at an airport is towing her 21.0 kg suitcase at constant speed by pulling on the strap at an angle of è above the horizontal (Fig. P4.40). She pulls on the strap with a 34.0 N force, and the friction force on the suitcase is 11.0 N. (a) What angle

asked by savannah on October 14, 2011
9. ## AP Physics

A woman at an airport is towing her 17.0 kg suitcase at constant speed by pulling on the strap at an angle of θ above the horizontal (Fig. P4.40). She pulls on the strap with a 26.0 N force, and the friction force on the suitcase is 10.0 N. What angle

asked by Frank on October 5, 2010
10. ## Physics

Two 2.00kg balls are attached to the ends of a thin rod length 50.0cm and negligible mass. The rod is free to rotate about a horizontal axis at the center, without friction. With the rod horizontal, a 50.0 gram glob of putty drops onto one of the balls,

asked by Lil on January 4, 2011
11. ## PHYSICS

HOW DO YOU FIND THE VELOCITY OF A 20 kg SOLID CYLINDER WITH A .25 m RADIUS WHEN IT IS RELEASED FROM THE TOP OF A 10 m LONG RAMP INCLINED AT 30 DEGREES? The potential energy at the top is mg10/sin30 The Ke at the bottom is 1/2 mv^2, plus 1/2 Iw^2 but w= v/r

asked by NICOLE on December 12, 2006
12. ## Physics

A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. I still don't quite understand

asked by Lindsay on December 5, 2007
13. ## PHYSICS

please.!PLEASe PLEASE. help me. TRUE or FALSE 1.the north pole of a permanent magnet is attracted to a south pole 2.iron,aluminum, and nickel are all ferromagnetic materials 3.all permanent magnets are surrounded by a magnetic field 4.the direction of a

asked by Clifford on February 27, 2016
14. ## physics

help me please. *TRUE or FALSE* 1.the north pole of a permanent magnet is attracted to a south pole 2.iron,aluminum, and nickel are all ferromagnetic materials 3.all permanent magnets are surrounded by a magnetic field 4.the direction of a magnetic field

asked by Charlene on February 28, 2016
15. ## Urgent help! Physics

A ball is kicked into the air with a speed of 10m per second at angle of 60 degrees to the horizontal (take g=10). a) Calculate the horizontal and vertical speed of the ball b) Calculate the ball's time of flight c) Calculate the distance from the kicked

asked by Papsi on August 23, 2016
16. ## physics

A light spring having a force constant of 110 N/m is used to pull a 10.0 kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.0 m/s^2 (a)By how much does the spring stretch if it pulls on the sled horizontally? (b)By how much

asked by rich on February 18, 2010

A sledge loaded with bricks has a total mass of 18.0 kg nd is plled at constant speed of a rope incllined at 20 degres above the horizontal. The sledge moves a distance of 20.0 m on a horizontal surface. the coefficient of kinetic friction between the

asked by dom on November 27, 2010
18. ## math

A cargo ship can carry containers weighing up to 50,000 tonnes. If it costs £1 million to rent out the entire space on this ship, how much will it cost if I want to rent out 3/5 of the entire space? How many tonnes of space do the firm have left to sell

asked by sky on March 18, 2017
19. ## statistics

A company selling clothes on the internet reports that the package it ships have a median weight of 85 ounces with an IQR of 56 ounces. The company plans to include a sales flyer weighing 2 ounces in each package. what will the new median and IQR BE?

asked by kelli on February 9, 2012
20. ## math

a diamond weighing 2.5 carats was cut into two pieces. The two pieces were put on a balance scale, one on each side. An additional weight of 0.9 carats on one side was required to maintain balance. Find the weight, in carats, of the larger piece

asked by Anonymous on March 30, 2017
21. ## math

A cargo ship can carry containers weighing up to 50,000 tonnes. If it costs £1 million to rent out the entire space on this ship, how much will it cost if I want to rent out 3/5 of the entire space? How many tonnes of space do the firm have left to sell

asked by sky on March 18, 2017
22. ## Physics

A person walked 3 miles at 30 degrees to the horizontal, 2 miles at 100 degrees to the horizontal, 5 miles at 240 degrees and 1 mile at 325 degrees. What is the person's total displacement

asked by Kelly on October 14, 2009
23. ## College Physic

Here is the Hw question: An archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish’s mouth. Suppose the archerfish squirts water with a speed of 2.3 m/s at an angle of 50 degrees above

asked by Megan Lee on September 8, 2012
24. ## College Physic

Here is the Hw question: An archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish’s mouth. Suppose the archerfish squirts water with a speed of 2.3 m/s at an angle of 50 degrees above

asked by Megan Lee on September 8, 2012
25. ## Physics

A science student is riding on a flatcar of a train along a strait, horizontal track at a constant speed of 12.0 m/s. The student throws a ball into the air along a path he judges to make an initial angle 65. deg with the horizontal and to be in line with

asked by Mary on September 25, 2016
26. ## physics

A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 12.0 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 60.0° with the horizontal and

asked by kia on February 17, 2011
27. ## physics

A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 12.0 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 60.0° with the horizontal and

asked by Anonymous on February 18, 2011
28. ## physics

A science student is riding on a flatcar of a train traveling along a straight, horizontal track at a constant speed of 12.8 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 67.0° with the horizontal and

asked by sedef on October 11, 2012
29. ## 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

asked by Derek on September 8, 2014
30. ## Physics

A cannon shoots a shell straight up. It reaches its maximum height, 1,051 feet, and splits into two pieces, one weighing 2 lb and the other 4 lb. The two pieces are observed to strike the ground simultaneously. The 4 lb piece hist the ground 1,608 feet

asked by Charlie on March 29, 2008
31. ## Physics

A cannon shoots a shell straight up. It reaches its maximum height, 1,051 feet, and splits into two pieces, one weighing 2 lb and the other 4 lb. The two pieces are observed to strike the ground simultaneously. The 4 lb piece hist the ground 1,608 feet

asked by Charlie on March 29, 2008
32. ## chemistry

A sample of metallic element X, weighing 4.315 g, combines with 0.4810 L of Cl2 gas (at normal pressure and 20.0¢ªC) to form the metal chloride with the formula XCl. If the density of Cl2 gas under these conditions is 2.948 g/L, what is the mass of the

asked by Hannah on July 22, 2011
33. ## chemistry

A sample of metallic element X, weighing 4.315 g, combines with 0.4810 L of Cl2 gas (at normal pressure and 20.0¢ªC) to form the metal chloride with the formula XCl. If the density of Cl2 gas under these conditions is 2.948 g/L, what is the mass of the

asked by Hannah on July 22, 2011
34. ## Physics

A woman at an airport is towing her 20.0 kg suitcase at constant speed by pulling on a strap at an angle θ above the horizontal. She pulls on the strap with a 35.0 N force, and the friction force on the suitcase is 20.0 N. a) What angle does the strap

asked by Stephanie on October 5, 2011
35. ## physics

A woman at an airport is towing her 27.0 kg suitcase at constant speed by pulling on the strap at an angle θ above the horizontal. She pulls on the strap with a 32.0 N force, and the friction force on the suitcase is 11.0 N. (a) What angle does the strap

asked by Elisa on June 8, 2008
36. ## Physics

help me to my homework please.!PLEASe PLEASE. TRUE or FALSE 1.the north pole of a permanent magnet is attracted to a south pole 2.iron,aluminum, and nickel are all ferromagnetic materials 3.all permanent magnets are surrounded by a magnetic field 4.the

asked by Shelle on February 27, 2016
37. ## Physics

anybody help me to my homework please.!thanks TRUE or FALSE 1.the north pole of a permanent magnet is attracted to a south pole 2.iron,aluminum, and nickel are all ferromagnetic materials 3.all permanent magnets are surrounded by a magnetic field 4.the

asked by Shelle on February 26, 2016
38. ## Math

Mr smith flight took off at Vancouver at local time 1335. The flight was bounded for Sydney via hongkong. After 16.5h flight, mr smith reached hongkong at 1505 local time on the same day. The plane took off again after 2h 20min. The plane landed in sydney

asked by StuartKess on July 13, 2011

what is the vertical and horizontal difference between the two eqautions on a graph? Here are the eqautions- y=2x+3 y=2x-4 please help me on this. These two eqautions when graphed are parralell to each other i believe. But im not sure how to calculate the

asked by tyler on February 16, 2009
40. ## math!

what is the vertical and horizontal difference between the two eqautions on a graph? Here are the eqautions... y=2x+3 y=2x-4 please help me on this. These two eqautions when graphed are parralell to each other. But im not sure how to calculate the

asked by tyler smith on February 16, 2009
41. ## math

what is the vertical and horizontal difference between the two eqautions on a graph? Here are the eqautions- y=2x+3 y=2x-4 please help me on this. These two eqautions when graphed are parralell to each other. But im not sure how to calculate the difference

asked by tyler on February 16, 2009
42. ## Math

Hi, how would we solve a problem like this? The path of the ball for many golf shots can be modelled by a quadratic function. The path of a golf ball hit at an agle of about 10 degrees to the horizontal can be modelled by the function : h= -0.002d^2+0.4d

asked by Mark on May 25, 2007
43. ## physics

A dockworker loading crates on a ship finds that a 20 kg crate, initially at rest on horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60 N is required to keep it moving with a constant speed. Find the

asked by Anonymous on October 14, 2007
44. ## Physics

A boy weighing 650 N wants to cross a creek by using a 5.00 meter long plank as a bridge. He places the plank across the creek and begins to walk across. Consider the supporting forces to be at the ends of the plank, and the plank itself to be weightless.

asked by Anonymous on August 4, 2017
45. ## algebra

The rack of weight plated at the fitness center has a total of 148 plates weighing 2.5,5,and 10 pounds each. The total weight is 500 pounds. There are ten times as many 5 pound plates as 10 pound plates. Set up a matrix equations and then solve it to

asked by allie on December 16, 2013
46. ## math , correction

i just like to know if i am correct. a vertical line in a graph looks like this:up and down a horizontal line looks like this: so if i have x >= 1 will be horizontal on 1 and if y 1, the asympotope will be vertical as x=1 If y

asked by jasmine20 on January 6, 2007
47. ## Physics

A box which has a mass of 90.8kg is at rest on a rough horizontal floor, A man pushes on the box with a horizontal force of 376N. As soon as the box begins to move a friction force of 214N acts on the box from the floor. If the man stops pushing the box at

asked by btsARMY on October 17, 2018
48. ## physics

A 2.15 kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 18.7 N is required to hold the mass at rest when it is pulled 0.205 m from its equilibrium position (the origin of the x axis). The mass is now

asked by Anonymous on November 17, 2010
49. ## physics

When it is 152 m above the ground, a rocket traveling vertically upward at a constant 9.50 m/s relative to the ground launches a secondary rocket at a speed of 12.4 m/s at an angle of 50.0 degrees above the horizontal, both quantities being measured by an

asked by alejandrob on November 17, 2010
50. ## science

An object has a gravitational potential energy of 24 joules when it rests on a shelf 3 m above the ground. What would be its gravitational potential energy when it is lowered to a shelf 1 m above the ground?

asked by Ezrw on April 26, 2017
51. ## Physics

A sled which has a mass of 45kg is sitting on a horizontal surface. A force of 120 N is applied to a rope attached to the front of the sled such that the angle between the front of the sled and the horizontal is 35 degrees. As a result of the application

asked by jo on February 25, 2012
52. ## Urgent! Pre-Cal

A wheelchair ramp with a length of 122 inches(top of ramp) and has a horizontal distance of 120 inches(bottom of ramp): a) what is the ramp's vertical distance(x)? b)Construction laws are very specific when it comes to ramps. Each vertical rise of 1 inch

asked by Dom on June 4, 2016
53. ## Chemistry

I did a lab where I had to decompose the compund patassium cholorate (KClO3)by heating,I had to weight the test tube then the test tube with the potassium chlorate to get the weight. I then had to heat it for several minutes and letting it cool down before

asked by Sheryl on March 23, 2009
54. ## PHYSICS

A long-straight wire carries a current and is aligned with the North-South direction. You place a compass 4 cm directly above the wire and above the North/East/South/West plane. The compass needle, which initially pointed North (far away from the wire) is

asked by Alysse on October 17, 2012
55. ## physics

A hawk ﬂies in a horizontal arc of radius 15.7 m at a constant speed of 3.8 m/s. Find its centripetal acceleration. Answer in units of m/s 2 006 (part 2 of 2) 10.0 points It continues to ﬂy along the same horizontal arc but increases its speed at the

asked by Zac on February 2, 2012
56. ## Physics

The system of blocks of masses m1=3kg and m2 = 1.80 kg are connected by a string as shown. Mass m rests on a rough surface of unknown coefficient of kinetic friction. After the masses are released, they move with an acceleration of 2.80 m/s^2 (m1 moves to

asked by Matt on February 20, 2007
57. ## Physics

A golf ball, mass 0.048 kg, rests on a tee. It is struck by a golf club with an effective mass of 0.225 kg and a speed of 44 m/s. Assuming the collision is elastic, find the speed of the ball when it leaves the tee (remember: you can not assume the club is

asked by Anonymous on April 23, 2014
58. ## physics

Two boxes sit side-by-side on a smooth horizontal surface. The lighter box has a mass of 5.18 kg, the heavier box has a mass of 7.51 kg. (a) Find the contact force between these boxes when a horizontal force of 3.9 N is applied to the light box.

asked by jeff on September 26, 2011
59. ## Physics

Rachel Pulls her 18 KG suitcase at at a constant speed by pulling on a handle that makes and angle (theta) with the Horizontal the frictional force of the suitcase is 27 N and Rachel exerts a 43 N force on the handle What angle does the handle make with

asked by Anonymous on October 25, 2010
60. ## math

which pair of transformations to the figure shown below would produce an image that is on top of the original A. a reflection to the right and a reflection over the horizontal line of reflection B. a translation right and a reflection over the vertical

asked by SS_CPA on March 6, 2019
61. ## physics

n automobile has a vertical radio antenna 1.40 m long. The automobile travels at 30.0 km/h on a horizontal road where Earth's magnetic field is 50.0 µT, directed toward the north and downward at an angle of 65.0° below the horizontal. (a) Specify the

asked by ricky on March 26, 2018
62. ## Physics

A horizontal spring with spring constant 110N/m is compressed 16cm and used to launch a 2.8kg box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on

asked by Lena on June 8, 2014
63. ## physics- mechanics

A light, rigid rod with two masses attached to its ends, one of mass 3M and one of mass M, is pivoted about a horizontal axis. The mass 3M is length L from the pivot point and the mass M is length 2L from the pivot point. When released from a horizontal

asked by Anonymous on February 18, 2013
64. ## Physics

A horizontal spring with spring constant 110N/m is compressed 16cm and used to launch a 2.8kg box across a frictionless, horizontal surface. After the box travels some distance, the surface becomes rough. The coefficient of kinetic friction of the box on

asked by Tracie on June 5, 2014
65. ## Physics

A Chinook salmon can jump out of water with a speed of 6.60 m/s . How far horizontally d can a Chinook salmon travel through the air if it leaves the water with an initial angle of θ=27.0° with respect to the horizontal? (Let the horizontal direction the

asked by Sarah on September 6, 2018
66. ## Math

Verify if this is the correct form please. Given the parent function f(x)=logx, state the equation of the function that results from a vertical stretch by a factor of 2/5, a horizontal stretch by a factor of 3/4, a reflection in the y-axis, a

asked by Lea on January 30, 2012
67. ## Physics

Initially, a particle is moving at 4.00 m/s at an angle of 33.5 degrees above the horizontal. Two seconds later, its velocity is 6.45 m/s at an angle of 60.0 degrees below the horizontal. What was the particle's average acceleration during these 2.00

asked by Hailey on October 17, 2015
68. ## Physics

Plane flying southwest at 155mi/hr. their is a wind from the west at 45.0mi/hr. what's the planes new velocity

asked by Dan on February 21, 2013
69. ## phys

a plane travels at 400 mi/r to a city away. Determine the time it takes for the round trip

asked by roek on October 2, 2009
70. ## physics

a plane travels 5.0 x 10^2 while being accelerated uniformly from rest at the rate of 5.0 m/s. what final velocity does it attain?

71. ## Calculus

A differentiable function f(x,y) has the property that f(2,2)=2 and fx(2,2)=1 and fy(2,2)=2. Find the equation of the tangent plane at the point on the surface z=f(x,y) where x=2, y=2.

asked by Caroline on October 17, 2012
72. ## Linear Algebra

A test Question: Find the parametric equations of the line through the origin that is orthogonal to the plane 2x+4y-z=0

asked by Simon on December 14, 2011
73. ## math

an airplane travels 750 miles in 1 hour and 45 minutes. what is the average velocity of the plane?

asked by ricky on April 13, 2016
74. ## physics

A plane cruising at 251 m/s accelerates at25 m/s2 for 9 s.What is its final velocity?Answer in units of m/s

asked by nathan on December 17, 2012
75. ## briggs

Compute the electric field about a uniformly charged plane sheet using gauss law.

asked by clement on June 14, 2015
76. ## physics

Compute the electric field about a uniformly charged plane sheet using gauss law.

asked by clement on June 14, 2015
77. ## Math

Speed of an airplane and time it takes the plane to complete a 500-mile trip

asked by Tiff on May 14, 2017
78. ## Physics

An airplane is flying at an altitude of 2,000 m with a speed of 216 m/s. What is the pressure of air outside the plane?

asked by Sandra on April 14, 2014
79. ## english

plane crash flying from dhangadhi to bijhang 30 people dead now make newspaper

asked by niroj on February 11, 2015
80. ## geometry

plot the given points in a coordinate plane.then determine whether the line segments named are congruent. A(2,2),B(2,-1),C(0,-2),D(3,-2); _ and _ AB CD

asked by sarena on September 21, 2011
81. ## Physics

700 kg plane is traveling at 90 m/s at altitude of 1500 m what is planes total mechanical energy

asked by Anonymous on October 31, 2014
82. ## Math

Write a paragraph proof of this theorem: In a plane, if two lines are perpendicular to the same line, then they are parallel to each other.

asked by Carrie on October 13, 2014
83. ## algebra

(a) A graph of is shown in the figure, where y _ L(x). As the weight of the plane increases, what can be said about the length of the runway required?

asked by logan on June 1, 2011
84. ## math

In a coordinate plane, what is the total number of points 5 unita from the origin and equidistant from both the x and y axes? 1)1 2)2 3)3 4)4

asked by patrick on April 11, 2009
85. ## Math

Write a paragraph proof of this theorem: In a plane, if two lines are perpendicular to the same line, then they are parallel to each other

asked by Carrie on October 14, 2014
86. ## physics

What should be the minimum initial velocity with which a missile has to be launched so that it reaches a target of 1000km away in the same plane

asked by Anonymous on December 23, 2016
87. ## Calculus (Motion with Vector functions)

3. What are the velocity and acceleration function vectors for a particle traveling in the xy-plane with position vector r(t)=(2+t^2, 3t)? a)v(t)=(2t^2, 3t) ; a(t)=(2t, 3) b)v(t)=(2t, 3) ; a(t)=(2, 0) c)v(t)=(2t, 3t) ; a(t)=(2, 3t) d)v(t)=(2+2t, 3) ;

asked by Angela on January 22, 2018
88. ## Geography

I was wondering if a plane flew west and kept flying, would it be possible for it to never fly into night if it didn't stop?

asked by Andrew on April 19, 2010
89. ## Science

A 7500 kg plane is launched from an aircraft carrier in 2.2 seconds, what is the planes acceleration? what is its velocity?

asked by Mike on March 20, 2008
90. ## physics

How long does it take a plane, traveling at a speed of 170 m/s, to fly once around a circle whose radius is 2900 m?

asked by bill on October 23, 2010
91. ## Calculus 3

Find a path that traces the circle in the plane y = −2 with radius r = 4 and center (−3,−2,−2) with constant speed 28.

asked by EKM on October 2, 2018
92. ## calculus 4; multiple integration

Find the surface area of the portion of a plane f(x,y)=2-x-y that lies above the circle x^2+y^2

asked by john on November 3, 2009
93. ## Physics

How long does it take a plane, traveling at a speed of 170 m/s, to fly once around a circle whose radius is 3500 m?

asked by Jessi on October 30, 2011
94. ## calculus 4; multiple integration

Find the surface area of the portion of a plane f(x,y)=2-x-y that lies above the circle x^2+y^2

asked by john on November 4, 2009
95. ## Math

Find the equation of the line of intersection of the two plane given by x+y+z=5 and 4x+y+2z=15 Pls help me to solve this.. After i use cross product i got (1,2,-3)..Then what should i do?

asked by Yong on October 28, 2015
96. ## Calculus

Find an equation of the plane orthogonal to the line: (x,y,z) = (5,-6,-1) + t(3,10,-3) which passes through the point (-6,-1,5). so i got so far: x=5+3t y=-6+10t z=-1-3t Should be in form ax+by+cz+d=d Not sure where to go from there...

asked by Vectors and Planes on September 10, 2007
97. ## Geometry

s one side of a rectangular fish tank best represented by a point, line, plane, or ray?

asked by Anonymous on February 3, 2016
98. ## Geometry

Write a paragraph proof of this theorem: In a plane, if two lines are perpendicular to the same line, then they are parallel to each other.

asked by nicka on December 10, 2015
99. ## math

Which figure results from slicing a pentagonal pyramid with a plane through the vertex that is perpendicular to the base?

asked by Anonymous on April 10, 2016
100. ## physical science

when a 65 kg skydiver jumps from a plane, and her kinetic energy is 7.05*10 to the 5th power J how fast is she falling

asked by cassie on February 18, 2015