# On planet Seeturn, the free fall acceleration is 9.800 N/kg but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 micro C (5.00*10-6) is

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1. ## physics

On planet Seeturn, the free fall acceleration is 9.800 N/kg but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 micro C (5.00*10-6) is thrown upward at a speed of 20.1

asked by john on December 7, 2017
2. ## physics

On planet Seeturn, the free fall acceleration is 9.800 N/kg but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 micro C (5.00*10-6) is thrown upward at a speed of 20.1

asked by david on December 7, 2017
3. ## physics

Planet Z is 1.00×10^4 km in diameter. The free-fall acceleration on Planet Z is 10.0 m/s^2. a)What is the mass of Planet Z? b)What is the free-fall acceleration 9000 km above Planet Z's north pole?

asked by kelly on December 1, 2009
4. ## Physics

The free-fall acceleration at the surface of planet 1 is 18 m/s^2. The radius and the mass of planet 2 are twice those of planet 1. What is the free-fall acceleration on planet 2?

asked by Alex on April 21, 2012
5. ## 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

asked by alexa on July 3, 2011
6. ## earth

On planet Tehar, the free-fall acceleration is the same as that on Earth but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 µC is thrown upward at a speed of 29.2 m/s

asked by Anonymous on October 18, 2010
7. ## physic 1010 first year university

Planet Z is 9000 km in diameter. The free-fall acceleration on Planet Z is 10.0 m/s^2.What is the mass of Planet Z?

asked by elona on December 4, 2009
8. ## Pyhsics

A) On planet X, an object weighs 19.2 N. On planet B where the magnitude of the free-fall acceleration is 1.17 g (where g = 9.8 m/s2 is the gravitational acceleration on Earth), the object weighs 34.9 N. The acceleration of gravity is 9.8 m/s2 . What is

asked by Kim on November 29, 2014
9. ## Physics

Imagine you are an astronaut who has landed on another planet and wants to determine the free-fall acceleration on that planet. In one of the experiments you decide to conduct, you use a pendulum 0.47 m long and find that the period of oscillation for this

asked by Ray on November 4, 2012
10. ## Physics

Imagine you are an astronaut who has landed on another planet and wants to determine the free-fall acceleration on that planet. In one of the experiments you decide to conduct, you use a pendulum 0.47 m long and find that the period of oscillation for this

asked by Ray on November 3, 2012
11. ## earth

On planet Tehar, the free fall acceleration is the same as that on the Earth, but there is also a strong downward electric field that is uniform close to the planets surface. A 2.00k ball having a charge of 5.00C is thrown upward at a speed of 20.1 m/s. It

asked by Anonymous on December 14, 2010
12. ## physics

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 15.0 m if her initial speed is 2.40 m/s. What is the free-fall acceleration on the planet?

asked by Michelle on January 24, 2010
13. ## PHYSICS!!!!!

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 19.0 m if her initial speed is 3.80 m/s. What is the free-fall acceleration on the planet?

asked by mike on November 2, 2008
14. ## physics

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 10.0 m if her initial speed is 2.60 m/s. What is the free-fall acceleration on the planet?

asked by Anonymous on February 16, 2011
15. ## physics

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 17.0 m if her initial speed is 3.80 m/s. What is the free-fall acceleration on the planet?

asked by kia on February 15, 2011
16. ## physics

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 10.0 m if her initial speed is 2.60 m/s. What is the free-fall acceleration on the planet?

asked by Anonymous on February 16, 2011
17. ## college physics

A new planet has been discovered that has a mass one-tenth that of Earth and a radius that is one-sixth that of Earth. Determine the free fall acceleration on the surface of this planet. Express your answer in the appropriate mks units.

asked by Joe on September 24, 2012
18. ## physics

On planet X, an object weighs 18.1 N. On planet B where the magnitude of the free-fall acceleration is 1.28 g (where g = 9.8 m/s 2 is the gravitational acceleration on Earth), the object weighs 37.9 N. The acceleration of gravity is 9.8 m/s 2 . What is the

asked by zach on December 8, 2015
19. ## Science

What factors affect the gauge pressure within a fluid? a. fluid density, depth, free-fall acceleration b. fluid volume, depth, free-fall acceleration c. fluid weight, depth, free-fall acceleration d. fluid mass, depth, free-fall acceleration

asked by Alla on December 19, 2011
20. ## Physics

Which statement reagarding the idealized model of motion called free fall is true? A. A freely falling object has a constant acceleration called the acceleration due to gravity. B. The idealized model of motion called free fall applies in cases where the

asked by Babygirl on September 14, 2018

You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its star with

asked by Me on November 26, 2011
22. ## physics

A 640 N student stands on a bathroom scale in an elebator. As the elevator starts moving, the scale reads 800 N. a) find the acceleration of the elevator (magnitude and direction) b) acceleration if the scale reads 450N? c) If the scale reads 0 should the

asked by Christina on November 16, 2006
23. ## physics

If the rotation of a planet of radius 3.41 × 106 m and free-fall acceleration 8.71 m/s2 increased to the point that the cen- tripetal acceleration was equal to the gravita- tional acceleration at the equator, what would be the tangential speed of a person

asked by squires on September 8, 2011
24. ## Physics: How much do you way on another planet

A person weighs 900 N on Earth. What would he weigh on another planet, where the free-fall acceleration is 26.4 m/s2? Answer in units of N.

asked by HELP ME!! on April 20, 2010

You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its star with

asked by Me on November 27, 2011
26. ## Physics

I can not figure this out. You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits

asked by Anonymous on November 30, 2011
27. ## physics

Astronauts visiting Planet X have a 2.6 -long string whose mass is 5.0g . They tie the string to a support, stretch it horizontally over a pulley 1.8m away, and hang a 1.8kg mass on the free end. Then the astronauts begin to excite standing waves on the

asked by sunday on February 3, 2015

You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its star with

asked by Me on December 1, 2011
29. ## physics

The acceleration due to gravity on planet X is one fifth that on the surface of the earth. If it takes 3.5 s for an object to fall a certain distance from rest on earth, how long would it take to fall the same distance on planet X? Answer in units of s.

asked by Anonymous on September 20, 2010
30. ## physics

The acceleration due to gravity on planet X is one fifth that on the surface of the earth. If it takes 4.6 s for an object to fall a certain distance from rest on earth, how long would it take to fall the same distance on planet X? Answer in units of s

asked by Anonymous on September 26, 2011
31. ## earth

The acceleration due to gravity on planet X is one fifth that on the surface of the earth. If it takes 4.6 s for an object to fall a certain distance from rest on earth, how long would it take to fall the same distance on planet X? Answer in units of s

asked by Anonymous on September 26, 2011
32. ## Free Fall

The acceleration due to gravity on planet X is one fifth that on the surface of the earth. If it takes 3.9 s for an object to fall a certain distance from rest on earth, how long would it take to fall the same distance on planet X?

asked by Joe on October 4, 2012
33. ## science

An astronauts boots weigh 100N on earth where the acceleration of free fall is 10m/s2. How much will they weigh on Mars where the acceleration of free fall is 4m/s2?

asked by watson on December 31, 2016
34. ## science

An astronauts boots weigh 100N on earth where the acceleration of free fall is 10m/s2. How much will they weigh on Mars where the acceleration of free fall is 4m/s2?

asked by watson on January 1, 2017
35. ## physics

when an object is dropped frome a hight of 20m above the surface of planet Z, it will fall 5m during the 2nd second of fall. What is the acceleration of a falling object near the surface of this planet?

asked by Sussex on September 26, 2008
36. ## Physics

A person can jump a horizontal distance of 3.10 m on Earth, where the free-fall acceleration, g = 9.81 m/s2. (a) How far could the person jump on the moon, where the free-fall acceleration is g/6 m (b) How far could the person jump on Mars where the

asked by mike on September 26, 2012
37. ## Physics

The planet Krypton has a mass of 7.1 × 1023 kg and radius of 3.3 × 106 m. What is the acceleration of an object in free fall near the surface of Krypton? The gravita- tional constant is 6.6726 × 10−11 N · m2/kg2. Answer in units of m/s2

asked by Sam on December 2, 2011
38. ## Physics

please check these: 1. which of the following statements applies to the motion of a ball rising and then falling in free fall? I.The ball has constant acceleration as it moves upward. II.The ball has constant acceleration at the top of its path. III.The

asked by y912f on January 31, 2009
39. ## science

the free-fall acceleration on the surface of the moon is appromimately 1/6 of the free-fall acceleration on the surface of earth. compare the period of a pendumlum on earth with that of an identical pendulum set in motion on the moon

asked by sake on April 3, 2008
40. ## Physichs

Two metal disks, one with radius R1 = 2.40 cm and mass M1 = 0.900 kg and the other with radius R2 = 4.95 cm and mass M2 = 1.50 kg , are welded together and mounted on a frictionless axis through their common center. A light string is wrapped around the

asked by 121 on December 11, 2015
41. ## Physics

A ball is shot vertically upward from the surface of another planet. A plot of y versus t for the ball is shown in the figure below, where y is the height of the ball above its starting point and t = 0 at the instance the ball is shot. The figure’s

asked by Vanessa on October 2, 2007
42. ## Physics

The ride drops riders from the top of a tall tower and let's them free fall for a short time before bringing them to a stop. For the riders' safety, you must make sure the riders do not experience an acceleration greate than 2g. Assume the riders have a

asked by Rolf on June 24, 2015
43. ## Physics

t a NASA research center free-fall research is performed by dropping experiment packages from the top of an evacuated shaft 156 m high. Free-fall imitates the so-called microgravity environment of a satellite in orbit. What constant acceleration would be

asked by Ali on September 10, 2015
44. ## Physics

An object is allowed to fall freely near the surface of an unknown planet. The object falls 80 meters from rest in 5.0 seconds. The acceleration due to gravity on that planet is? Would the answer be 16?

asked by Hannah on September 27, 2009
45. ## Physics

A loaded elevator with very worn cables has a total mass of 2600 Kg , and the cables can withstand a maximum tension of 2.90×104 N . A) Apply Newton's second law to the elevator and find the maximum upward acceleration for the elevator if the cables are

46. ## free-fall graph

for a object in free-fall what will the acceleration (cm/sec2) on the y axis versus time(sec) on the x axis graph look like? When there is no frictional air resistance, the acceleration is constant: 9.8 meters per second per second. Air resistance causes a

asked by jason on June 12, 2006
47. ## Science

The atmospheres of the planets in our solar system differ in their physical compositions. Which planet would you expect to have the thickest atmosphere? a planet with a hot atmosphere and strong gravity a planet with a cold atmosphere and strong gravity a

asked by Nour on July 31, 2015
48. ## Science

The atmospheres of the planets in our solar system differ in their physical compositions. Which planet would you expect to have the thickest atmosphere? a planet with a hot atmosphere and strong gravity a planet with a cold atmosphere and strong gravity a

asked by Nour on July 30, 2015
49. ## SCIENCE PLZZ HELP!!!

____ is rate of change of position. Speed Velocity Acceleration Displacement 2. Which of the following is the difference between speed and velocity? direction units speed none of the above 3. A planet is discovered that is the same size as Earth and has

asked by gabby on May 30, 2016
50. ## physics

An object rests on the surface of planet y. Its mass is unknown. Find the acceleration due to gravity near the surface of planet y. Answer in m/s/s. G=6.673x10^-23 radius of planet y=2439700m mass of planet y=3.302x10^23kg radius of planet x=71492000m mass

asked by camille on April 10, 2011

Which of the following confirms that gravitational mass and inertial mass are equal? 1.Free-fall accleration is the same throughout the universe 2.Free fall acceleration is the same at all points where the gravitational field stength is the same 3.Newton's

asked by Annie on November 21, 2010
52. ## physics

On planet Tehar, the acceleration of gravity is the same as that on Earth but there is also a strong downward electric field with the field being uniform close to the planet's surface. A 2.16 kg ball having a charge of 4.80 uC is thrown upward at a speed

asked by VJC on September 9, 2010
53. ## Science

The force of gravity acting on a car driving on the surface of a planet is called Mass Terminal velocity Weight*** Free fall

asked by Felicia Graves on October 25, 2016
54. ## AP physics

A student preformed a sphere drop experiment from 1.50m above ground and the sphere has a mass of 0.875kg. Free fall times for the students experiment are below. Calculate the average acceleration due to gravity from the students data. Free fall times (s)

asked by Susana on September 21, 2016
55. ## physics

If you accelerate due to gravity (free fall), your acceleration is -9.8 m/s2. In some fields, particularly aviation, this is referred to as 1 g of acceleration. If you were accelerating at 2.5 g, what would be your average acceleration? If you started from

asked by iyzi on October 12, 2013
56. ## phsics

a man weighs 1370N on earth what would he weigh on jupiter where free fall acceleration is 25.9 m/s2 the acceleration of gravity is 9.8 m/s2 in units of N

asked by Martin on November 2, 2014
57. ## Science

If one ignores air friction, the actual acceleration is a constant, 9.8m/s^2. Now if you are experimenting, and actually trying to measure it, you need a method of plotting distance fell versus time. I have done it with photography in the dark, with a

asked by bobpursley on October 30, 2006
58. ## physics

on a planet whose mass is twice that of earth and whose radius is same, with what acceleration will a body fall at sea level?

asked by Rob on January 11, 2011
59. ## science

on a planet whose mass is twice that of earth and whose radius is the same, with what acceleration will a body fall at sea level

asked by anonymous on January 11, 2011
60. ## Physics

An airplane is flying in a horizontal circle at a speed of 106 m/s. The 81.0 kg pilot does not want the centripetal acceleration to exceed 6.16 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

asked by Kyla on November 14, 2012
61. ## Physics

An airplane is flying in a horizontal circle at a speed of 104 m/s. The 73.0 kg pilot does not want the centripetal acceleration to exceed 6.98 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

asked by Anonymous on March 6, 2013
62. ## Phsics

A man weighs 772 N on Earth. What would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2? The acceleration of gravity is 9.8 m/s2 . Answer in units of N

asked by Drake on November 7, 2011
63. ## Physics

A man weighs 1220 N on Earth. What would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2? The acceleration of gravity is 9.8 m/s2 . Answer in units of N.

asked by Dede on November 5, 2010
64. ## Physics

An airplane is ﬂying in a horizontal circle at a speed of 104 m/s. The 88.0 kg pilot does not want the centripetal acceleration to exceed 6.15 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

asked by Dave on February 8, 2013
65. ## Physics

1. Free-fall: A ball is thrown vertically upward. What are its velocity and acceleration when it reaches its maximum altitude? What is its acceleration just before it hits the ground?

asked by Aaron on November 10, 2010
66. ## Physics

You're on planet YZ and an astronaut observes that a 1.0 m long pendulum has a period of 1.50s. What is the free-fall accerlerttion on YZ? Answers: 1.003 m/s^2 26.4 m/s^2 17.6 m/s^2 0.23 m/s^2 Could someone direct me how to set this up or give me any

asked by Ray Scholz on January 30, 2011
67. ## physics

A tennis ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s. What is the magnitude of the acceleration

asked by Kate on February 2, 2011
68. ## Physics

A 21.0-kg satellite has a circular orbit with a period of 2.37 h and a radius of 8.50×106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 7.10 m/s2, what is the radius of the planet?

asked by winterWX on February 16, 2007
69. ## English

What is another word for strong, as in strong in the mind and will not fall even at the toughest times. But I don't want to use strong-minded because that is more like determined. So, what is another characteristic for strong but it does not mean

asked by Curri on November 20, 2014
70. ## College Physics - Weight

A planet has a mass of 7.93 × 1023 kg and a radius of 2.58 × 106 m. (a) What is the acceleration due to gravity on this planet? (b) How much would a 67.0-kg person weigh on this planet?

asked by Anonymous on March 15, 2012
71. ## Physics

A planet has a mass of 6.22 × 1023 kg and a radius of 2.51 × 106 m. (a) What is the acceleration due to gravity on this planet? (b) How much would a 77.7-kg person weigh on this planet?

asked by Valeria on June 19, 2013
72. ## physics

A planet has a mass of 5.71 × 1023 kg and a radius of 3.93 × 106 m. (a) What is the acceleration due to gravity on this planet? (b) How much would a 61.8-kg person weigh on this planet?

asked by lawrenvceshrenk on February 24, 2014
73. ## physics

A planet has a mass of 6.08 × 1023 kg and a radius of 2.62 × 106 m. (a) What is the acceleration due to gravity on this planet? (b) How much would a 63.6-kg person weigh on this planet?

asked by Anonymous on March 17, 2015
74. ## Physics

A planet has a mass of 6.15 × 1023 kg and a radius of 3.25 × 106 m. (a) What is the acceleration due to gravity on this planet? (b) How much would a 79.4-kg person weigh on this planet?

asked by Elle on February 28, 2014
75. ## physics

It has been suggested that rotating cylinders about 10 mi long and 4.9 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

asked by kaitlyn on December 1, 2010
76. ## Physics

It has been suggested that rotating cylinders about 10 mi long and 5.6 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

asked by Alexander on April 7, 2010
77. ## Physics

It has been suggested that rotating cylinders about 10 mi long and 5.4 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

asked by Lou on December 3, 2010
78. ## Physics

Please help with the following question: You are on a planet whose radius is known to be about 4500 km. You then perform the following experiment: You drop a rock from a height of 10.0 m and measure the time of its fall to be 2.65 s. What is the mass of

asked by Deila on January 4, 2017
79. ## physics help 3!! **

Based on the following data about planet X (which orbits around the Sun): Planet X's distance from Sun = 3.6*1012 m Planet X's radius = 2*106 m Planet X's mass = 8.2*1022 kg a.) Find gx, the size of the acceleration due to gravity on the surface of Planet

asked by kelsey on October 31, 2008
80. ## physics

It has been suggested that rotating cylinders about 12 mi long and 5.4 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

asked by jb on November 21, 2009
81. ## physics

It has been suggested that rotating cylinders about 12 mi long and 4.1 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

asked by monic on November 15, 2012
82. ## physics

It has been suggested that rotating cylinders about 9 mi long and 6.0 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

asked by Anonymous on June 18, 2010
83. ## physics

It has been suggested that rotating cylinders about 9 mi long and 5.1 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

asked by Anonymous on November 14, 2011
84. ## physics

It has been suggested that rotating cylinders about 12 mi long and 4.6 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

asked by Anonymous on October 22, 2009
85. ## Physics

A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.2 m/s at ground level. Its engines then fire and it accelerates upward at 4.20 m/s2 until it reaches an altitude of 960 m. At that point its engines fail, and

asked by Becky on October 12, 2009
86. ## physics

A planet orbits a star, in a year of length 4.46 x 107 s, in a nearly circular orbit of radius 3.17 x 1011 m. With respect to the star, determine (a) the angular speed of the planet, (b) the tangential speed of the planet, and (c) the magnitude and

asked by leroy on July 16, 2013

Which of the following confirms that gravitational mass and inertial mass are equal? I posted this about three hours ago and no one answered it so I'm hoping someone can look at my answer and direct me 1.Free-fall accleration is the same throughout the

asked by Annie on November 21, 2010
88. ## Physics help ASAP

Suppose you are visiting a planet in a distant part of the galaxy.To determine the acceleration due to gravity on this planet, you drop a rock from a height of 55 m. The rock strikes the ground 1.9 s later.How many times greater is the acceleration due to

asked by Steve on September 21, 2014
89. ## Physics

It has been suggested that rotating cylinders about 9 mi long and 5.1 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

asked by Anonymous on November 14, 2011
90. ## Physics 1

A textbook of mass 1.95 kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.100 m , to a hanging book with mass 3.08 kg . The system is released from rest, and the books are observed to move

asked by David on April 6, 2016
91. ## physics

In a distant planet, a freely falling object gains speed at a steady rate of 25 m/s during each 1.2 seconds of fall. The gravity acceleration there is: 122 m/s2 0.05 m/s2 30 m/s2 22 m/s2 5 m/s2 20.8 m/s2

asked by Anonymous on February 13, 2011
92. ## physics

It has been suggested that rotating cylinders about 12.5 mi long and 4.88 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

asked by king on January 6, 2016
93. ## physics

A person can jump a horizontal distance of 2.59 m on the Earth. The acceleration of gravity is 11.8 m/s2 . How far could he jump on the Moon, where the free-fall acceleration is 0.297g? Answer in units of m

asked by Tina on March 9, 2012
94. ## Physics

An airplane is flying in a horizontal circle at a speed of 105 m/s. The 76.0 kg pilot does not want the centripetal acceleration to exceed 6.35 times free-fall acceleration. a) Find the minimum radius of the plane’s path. Answer in units of m.

asked by BIlly on January 9, 2011
95. ## Interger Science

Calculate the free-fall acceleration of a 20 kg bag of salt.

asked by Maya on November 23, 2010
96. ## health

What is the toll-free number for the National Suicide Prevention Lifeline that anyone can call 24 hours a day, everyday? A. 1-800-273-HOME B. 1-800-273-LOVE C. 1-800-273-TALK D. 1-800-273-FEEL

asked by Aya on August 12, 2012
97. ## health

What is the toll-free number for the National Suicide Prevention Lifeline that anyone can call 24 hours a day, everyday? A. 1-800-273-HOME B. 1-800-273-TALK C. 1-800-273-LOVE D. 1-800-273-FEEL

asked by Martin1162 on March 9, 2016
98. ## Physica

A 21.0-kg satellite has a circular orbit with a period of 2.37 h and a radius of 8.50×106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 7.10 m/s2, what is the radius of the planet? I

asked by winterWX on February 17, 2007
99. ## Physics

In order for a satellite in free fall to maintain uniform circular motion, ______________. a) there must be a tangential acceleration b) there must be angular acceleration c)there must be a centripetal force d) there must be a circumventing force Its

asked by Kelvin on November 23, 2012
100. ## Physics

You are an explorer on a tiny planet with no atmosphere. You drop a coffee filter and find that it falls 2.0m in 1.6s. As you were approaching the planet, you measured the radius to be 1.8x10^6 m. What is the mass of the planet? So I used the 2.0m and 1.6s

asked by Sam on September 15, 2015