# A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.3 later. If the speed of sound is 340 , how high is the cliff?

14,653 results
1. ## physics

Cliﬀ divers at Acapulco jump into the sea from a cliﬀ 37.1 m high. At the level of the sea, a rock sticks out a horizontal distance of13.39 m. The acceleration of gravity is 9.8 m/s^2. With what minimum horizontal velocity must the cliﬀ divers leave

2. ## PHYSICS HELP

A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 31 m high. When it hits the ground at the base of the cliff, the rock has a speed of 29 m/s . a.Assuming that air resistance can be ignored, find the initial speed of the rock . v0=

3. ## Physics

A rock is dropped from a sea cliff, and the sound of the of it striking the ocean is heard 3.2s later. If the speed of sound is 340m/s, how high is the cliff?

4. ## Math

For this problem, a person standing on the edge of a cliff throws a rock directly upward. it is observed that 2 secs later the rock is at its maximum height (in feet) and that 5 secs after that (meaning 7 seconds after being thrown) the rock hits the

5. ## PHYSICS

A rock is dropped from rest into a well. The sound of the splash is heard 2.40 s after the rock is released from rest. (a) How far below the top of the well is the surface of the water? The speed of sound in air (at the ambient temperature) is 336 m/s.

6. ## physics

A car is parked near a cliff overlooking the ocean on an incline that makes an angle of 29.1◦ with the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline and has a

7. ## physics

A car is parked near a cliﬀ overlooking the ocean on an incline that makes an angle of 21.7◦ with the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline and has a

8. ## physics

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.3 later. If the speed of sound is 340 , how high is the cliff?

9. ## Physics

A soccer player kicks a rock horizontally off the a 40 m high cliff into the pool of water. if the player hears the sound of the splash 3 sec., what is the initial speed given to the rock? Assume the speed of the sound in air to be 343 m/s.

10. ## Physics

A stone is dropped from the top of a cliff. The splash it makes when striking the water below is heard 3.5 s later. How high is the cliff

11. ## physics

a rock is dropped from a cliff falls one-third of it's total distance to the ground in the last second of it's fall. how high is the cliff?

12. ## Physics

A rock is thrown horizontally off of a cliff. It starts with a velocity of 4.2 m/s and the cliff is 68.2 m high. How long does the rock fall? I got 3.7 seconds but I do not know if it is right. (Help on these two) How far out from the bottom of the cliff

13. ## physics

a soccer player kicks a rock horizontally off a 40.0-m-high cliff into a pool of water. if the player hears the sound of the splash 3.00 s later, what was the initial speed given to the rock? assume the speed of sound in air to be 343m/s.

14. ## physics

A rock is thrown off a vertical cliff at an angle of 58.6o above horizontal. The cliff is 84.6 m high and the ground extends horizontally from the base. The initial speed of the rock is 21.8 m/s. Neglect air resistance. To what maximum height, in meters,

15. ## Algebra 2 Applications

A water balloon is dropped from a cliff. Exactly 3 sec later, the sound of the balloon hitting the ground reaches the top of the cliff. How high is the cliff? (Thanks in advance for any help you can provide!)

16. ## physics

A rock is thrown from a cliff top at 18m/s, 25 degrees above the horizontal. It lands on the beach 4.2 seconds later. a) What is the height of the cliff? b) Hor far from the base of the cliff did the rock land?

17. ## Physics

if rock A is dropped from a cliff and rock B is thrown downward off the cliff, which of the two has a greater velocity?

18. ## Physics

A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.7 s later. If the speed of sound is 340 m/s, how high in meters is the cliff?

19. ## physics

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is 340 m/s, how high is the cliff? vo= 0; s=340 m/s; t= 3.2s h=? t1+t2= 3.2 s t2= 3.2-t1 I used Eq: h= vo*t^1+1/2at^2 rearranged eq. h=

20. ## Physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 32.0 m above sea level, directed at an angle θ above the horizontal with an unknown speed v0. The projectile remains in

21. ## Math Gr 11

"A rock is dropped from the edge of a 180 m cliff. the function f(x) = -5t^2 - 5t + 180 gives the height of the rock, h(t), in meters t seconds after it was released. How long does it take for the rock to reach a ledge 80 m above the base of the cliff?" I

22. ## physics

a ball has a mass of 0.5kg dropped from a cliff top, the ball srtikes the sea below at a velocity of 10m/s. (a)what is the kinetic energy of the ball as it strikes the sea? (b) what was its potential energy before it was dropped? (c)from what height was it

23. ## physics

A 76 kg rock is rolling horizontally at the top of a vertical cliff that is 20m above the surface of lake.the top of the vertical face of the dam is located 100m from the foot of the cliff with the top of the dam level plain is 25m below the top of the

24. ## Math

Free fall equation is s=6.1t^2 ft, where t is in seconds. Assume a rock is dropped from a 100 ft cliff. Find speed of the rock at t=3.5 sec.

25. ## Physics

Cliff divers at Acapulco jump into the sea from a cliff 36.4 m high. At the level of the sea, a rock sticks out a horizontal distance of 13.16 m. The acceleration of gravity is 9.8 m/s 2 . With what minimum horizontal velocity must the cliff divers leave

26. ## physics

A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.54 s after it was thrown. How high is the cliff?

27. ## Science

1. Describe the landscape of the ocean floor. 2. (a) What is the Mid-Atlantic Ridge? (b) What is the relationship between an ocean ridge and an ocean trench? 3. What new technologies allowed scientists to confirm that the sea floors are spreading? 4. Hess

28. ## phicis

a rock is dropped from a cliff and reaches the ground in 2.70s . At the same time another rock is thrown horizontally from the same height with initial x velocity of 0.95 m/s. what distance will in x will the second recover?

29. ## physics

A 17-kg rock is on the edge of a 103-m cliff. (a) What potential energy does the rock possess relative to the base of the cliff? . J (b) The rock falls from the cliff. What is its kinetic energy just before it strikes the ground? J

30. ## Physics

A rock is dropped into a well, and a splash was heard 3 seconds later. If sound travels in air at 344 m/s, A) How deep is the well? B) What are the final positions of the Rock and the Sound? (Rock = Yfr; Sound = Yfs) Known Variables: Gravity = -9 m/s^2

31. ## Science

A rock is held steady over a cliff and dropped. 1.1 seconds later, another rock is thrown straight down at a speed of 12.1 m/s, and hits the first rock. How far have the rocks dropped before they collide? How long is the first rock in the air before it

32. ## Physics

An astronaut is stranded on another planet with UNKNOWN GRAVITY. He conducts two experiments. In the first, he drops a rock from a cliff and he finds that it takes the rock 4.15 seconds to reach the ground at the base of the cliff. In the second

33. ## Physics

A 3.0 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 1.0 kg of water is raised

34. ## Physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 46.7° above the horizontal, and with a speed v = 28.4 m/s. Assuming

35. ## physics

A car is parked on a cliff overlooking the ocean on an incline that make an angel of 37 degree with the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. the car rolls from rest down the incline with a

36. ## PHYSICS

A 0.26kg- rock is thrown vertically upward from the top of a cliff that is 32m high. When it hits the ground at the base of the cliff, the rock has a speed of 29m/s. 1) Assuming that air resistance can be ignored, find the initial speed of the rock ? m/s

37. ## physics

A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 4.1s later. If the speed of sound is B40 m/s, how high is the cliff? ____m

38. ## Physics

A rock is dropped from a sea cliff 400m high.If the speed of sound is a constant 330 m/s, how long after the rock is dropped is the sound of the splash heard at the top of the cliff?

39. ## physics

Cliff divers at Acapulco jump into the sea from a cliff 30.1 m high. At the level of the sea, a rock sticks out a horizontal distance of 9.19 m. The acceleration of gravity is 9.8 m/s With what minimum horizontal velocity must the cliff divers leave the

40. ## physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 33.0 m above sea level, directed at an angle theta = 46.9° above the horizontal, and with a speed v = 33.7 m/s. Assuming

41. ## pre calc

A rock is dropped form the top of a cliff. It takes 12 seconds to hit the ground. What is the height in feet of the cliff?? How fast is the rock moving when it hits the ground?

42. ## physics

In lab you learned to calculate the depth of water based on the time it takes for a sound wave to travel to the ocean floor and back, assuming that sound travels at a speed of 1500 m/s in the ocean. If I conducted the same test above the Mariana Trench,

43. ## calculus 1

A rock is dropped off the edge of the cliff and its distance S ( in feet ) from the top of the cliff after T seconds is S ( T ) = 16t^2. Assume the distance from the top ofthe cliff to the water below is 96ft Make a table of the average velocity and

A rock is thrown horizontally off of a cliff. It starts with a velocity of 4.2 m/s and the cliff is 68.2 m high. How long does the rock fall? I got 3.7 seconds but I do not know if it is right. (Help on these two) How far out from the bottom of the cliff

45. ## physics

A 17-kg rock is on the edge of a 103-m cliff. (a) What potential energy does the rock possess relative to the base of the cliff? 1 . J (b) The rock falls from the cliff. What is its kinetic energy just before it strikes the ground? 2 . J (c) What speed

46. ## Physical sciences

A rock is kicked horizontally at a speed of v=5.83 m/s from the edge of a cliff. The rock strikes the ground 48.o1 m from the foot of the cliff of height H . How long is the rock in the air

47. ## physics

two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)

48. ## College Physics

A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 6.4 s later. If the speed of sound is 340 m/s, how high is the cliff?

49. ## Physics

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 seconds later. If the speed of sound is 340 meters per second, how high is the cliff?

50. ## Physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 31.0 m above sea level, directed at an angle q above the horizontal with an unknown speed v0. a. The projectile remains in

51. ## pyhsics

A man drops a rock off the side of a cliff, and hears it hit the bottom 2.8 seconds later. If the average speed of sound is 335 m/s, how high is the cliff? I have been able to figure out this much, but I don't know how to solve the problem with the data

52. ## physics 1

An astronaut is stranded on another planet with UNKNOWN GRAVITY. He conducts two experiments. In the first, he drops a rock from a cliff and he finds that it takes the rock 4.15 seconds to reach the ground at the base of the cliff. In the second

53. ## physics

A soccer player kicks a rock horizontally off a 41.7 m high cliff into a pool of water. If the player hears the sound of the splash 3.08 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.

54. ## physics

Question 1) A rock is dropped from the top of a 100 meter tall cliff. A. ) How long will it take for the rock to reach the ground. B) What will be the velocity of the rock when it hits the ground? C) How long will it take for the rock to reach the ground

55. ## physics

A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.44 s after it was thrown. How high is the cliff?

A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 35 m high. When it hits the ground at the base of the cliff the rock has a speed of 28 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b)

57. ## Physics

A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.9 s later. If the speed of sound is 340 m/s, how high is the cliff? i know you use the equation y=(initial velocity)(time) + (1/2)(acceleration)(time^2) but I'm having

58. ## physics

A 4.2 kg rock is initially at rest at the top of a cliﬀ. Assume that the rock falls into the sea at the foot of the cliﬀ and that its kinetic energy is transferred entirely to the water. How high is the cliﬀ if the temperature of 1.5 kg of water is

59. ## Physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 32.0 m above sea level, directed at an angle theta = 46.9° above the horizontal, and with a speed v = 29.6 m/s. Assuming

60. ## phsics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 32.0 m above sea level, directed at an angle theta = 49.3° above the horizontal, and with a speed v = 25.8 m/s. Assuming

61. ## Physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 46.3° above the horizontal, and with a speed v = 35.8 m/s. Assuming

62. ## phsics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 32.0 m above sea level, directed at an angle theta = 49.3° above the horizontal, and with a speed v = 25.8 m/s. Assuming

63. ## Physical Science

A rock is dropped off a 20m tall cliff. How long does it take to get to the bottom of the cliff? What is the instantaneous velocity right before it hits the bottom of the cliff?

64. ## Algebra 1

A firework is launched from a cliff overlooking the ocean. The elevation of the firework shell, in feet above sea level, t seconds after launch is given by the expression -16t^2+157t+63. How high is the top of the cliff, in feet above sea level. We just

65. ## Social studies

What are the formations of rock-like material that are found In the ocean off Australia's northeast coast? Ocean mountains. Coral reefs. (MY ANSWER) Sea plateaus. Volcanic islands.

66. ## physics

two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)

67. ## Physics

A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 5.2 seconds later. If the speed of sound is 340 m/s, how high is the cliff?

68. ## Scientific studies

A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 3.2 s later. If the speed of sound is how high is the cliff?

69. ## college physics

eng physics a rock is dropped at sea cliff at the sound of it striking the ocean if head 3.4 seconds later. If the speed of sound is 340m/s how high is the cliff?

70. ## college physics( hey bob)

I posted this quesiotn and got some help but still don't know how to do it. could i please get a little more assistance please. I don't know how to solove for the time of falling or sound without the variable height. eng physics a rock is dropped at sea

71. ## Physics

A student drops a stone from the edge of a sea cliff. The sound of the stone striking the ocean is heard 3.8s after the stone is released. The speed of sound in air is 340m/s. Find the height of the cliff. Ignore air resistance.

72. ## Math

You drop a rock into the ocean. The rocks depth is changing by -3 feet per second. If you dropped the rock at sea level, what is the depth of the rock after 30 seconds?

73. ## Physics

A rock is dropped into a deep hole and 2.2 s later the sound of striking the bottom is heard. If the speed of sound is 340 m/s, what is the depth of the hole?

74. ## physics

A 3.5 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 0.88 kg of water is raised

75. ## Physics

A 2.6 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 0.98 kg of water is raised

76. ## physics

A 3.5 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 0.88 kg of water is raised

77. ## Physics Honors

A rock is thrown horizontally from a cliff overlooking the ocean. If the cliff is 45 meters high and the rock is thrown at 18 m/s, what is the angle at which it strikes the ocean?

78. ## Physics

A 4.2 kg rock is initially at rest at the top of a cliff. Assuming the rock falls into the sea at the foot of the cliff and that its kinetic energy is transferred entirely to the water, how high is the cliff if the temperature of 1.5 kg of water is raised

79. ## physics

A 3.6 kg rock is initially at rest at the top of a cliﬀ. Assume that the rock falls into the sea at the foot of the cliﬀ and that its kinetic energy is transferred entirely to the water. How high is the cliﬀ if the temperature of 1.1 kg of water is

80. ## phy

A stone is thrown upward from the edge of a cliff overlooking the ocean. The initial speed of the stone is 20m/s, and it's thrown up at an angel of 30 degrees with respect to the horizontal. the cliff is 45m above the ocean surface. How long is the stone

81. ## physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 32.0 m above sea level, directed at an angle theta = 47.3° above the horizontal, and with a speed v = 35.5 m/s. Assuming

82. ## Physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 45.9° above the horizontal, and with a speed v = 32.3 m/s. Assuming

83. ## physics

To estimate how high the cliff is you throw a rock off the edge and 7.8 s later you hear the rock hit the ground. The speed of sound is 330 m/s. Ignoring air resistance how high is the cliff?

84. ## Physics

One can get a good idea of how deep a well is, for example, by dropping a rock and listening to how long it take to hear the rock as it hits the bottom. Suppose a rock was dropped into a well that was 410 meters deep and after the rock hits the bottom, a

85. ## physics

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 35.0 m above sea level, directed at an angle è above the horizontal with an unknown speed v0. The projectile remains in

86. ## physics

a stonne dropped from a cliff, takes 3.0secs to reach the sea. how high is the cliff?

87. ## physics

c) A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff the rock has the speed of 29 m/s. Assuming that the air resistance can be ignored, find i. the initial speed of the

88. ## Physics

A small parachute is dropped from a cliff. it falls at a constant speed rate 2 m/s. A small rock is dropped 20.0 seconds later. how far will the rock drop before it passes the parachute?

89. ## physics

A rock is dropped from rest off a cliff to the surface of a lake which is 6.2 m below. What is the velocity of the rock just as it hits the water?

90. ## physics

a rock is dropped off a cliff. after 4s, what is the rocks velocity? how far did the rock fall?

91. ## physics

A soccer player kicks a rock horizontally off a 40.0 m high cliff into a pool of water. If the player hears the sound of the splash 3.04 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.

92. ## physics

A soccer player kicks a rock horizontally off a cliff 42.9 m high into a pool of water. If the player hears the sound of the splash 3.16 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.

93. ## physics

A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff the rock has a speed of 28 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b)

94. ## physic

Question Part Points Submissions Used A soccer player kicks a rock horizontally off a 41.7 m high cliff into a pool of water. If the player hears the sound of the splash 3.11 s later, what was the initial speed given to the rock? Assume the speed of sound

95. ## Physics

A rock is thrown horizontally off of a cliff. It starts with a velocity of 4.2 m/s and the cliff is 68.2 m high. How far out from the bottom of the cliff does the rock fall? ﻿﻿ 57m﻿ 59m ﻿ 63m ﻿ 45.8m ﻿

96. ## physics

A rock is thrown upwards from the top of a 100m cliff, on the way down the rock misses the edge of the cliff and continues falling to the ground. What is the distance that the rock travelled?

97. ## PHYSICS

looking over the edge of a cliff, you become curious as to how high up you are. you take a rock and drop it over the edge and count. The rock strikes the ground in between 3 and 4 of your count. so let's estimate that it took 3.5s for it to hit the ground.

98. ## Physics

A 0.26-kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff, the rock has a speed of 32 m/s . Part A Assuming that air resistance can be ignored, find the initial speed of the rock.

99. ## physics

two rocks are dropped off a cliff. the second rock hits 1.6 s after the first. how far below the cliff is the second stone when the rocks are 36m apart? (10.97m)

100. ## phys

10. A rock is thrown upwards from the top of a 45 m tall cliff with an initial speed of 15 m/s. (a) What is the maximum height reached by the rock? (b) For what total time is the rock in the air before it strikes the ground at the base of the cliff?