# The speed (v) of an ocean wave depends on its wavelength ë (measured in meters) and the gravitational field strength g (measured in m/s62) according to the formula v = Këˣgʸ where K is a dimensionless constant. Find the value

43,115 questions, page 141
1. ## Physics

On level ground, you stand 27.0 m from the base of a tree and determine that the treetop is at 39 ∘ above the horizontal, as measured from ground level. How tall is the tree?

asked by Anonymous on January 26, 2017
2. ## hydrolics

what is the pressure at apoint 10 m below the free surface in fluid that has with solution variable density in kg/m3 given by p=45+ah, in which a=12 kg/m4 and h is the distance measured from the free surface with solution

asked by mamush on January 13, 2019
3. ## chemistry

the volume of a gas measured at 27 c and 101.3 kpa is 20.0 dm3 what final temperature would be required to increase the volume too 40.0 at 101 kpa

asked by ibrahim on November 6, 2015
4. ## Physical Science

Kinematic--v = v0 + at and Energy--½mv2 = mgh. Solve both equations for v. Time was 00.6 Measured from 2ft. What is the Velocity in m/s kinematic and the Velocity in ft/s energy

5. ## chemistry

A 0.27 sample of a weak acid with an unknown was combined with 12.0 of 3.00 and the resulting solution was diluted to 1.500 . The measured of the solution was 3.95. What is the of the weak acid?

A toy race car starts from rest on a circular track of radius 4.30 m. The cars speed increases at the constant rate of 8.80 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, determine (a) the speed of the

asked by Anonymous on October 25, 2012
7. ## Physics HELP!

A toy race car starts from rest on a circular track of radius 4.30 m. The cars speed increases at the constant rate of 8.80 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, determine (a) the speed of the

asked by Mel on October 27, 2012
8. ## Physics

As a protest against the umpire’s calls, a base- ball pitcher throws a ball straight up into the air at a speed of 20 m/s. In the process, he moves his hand through a distance of 1.47 m. The acceleration of gravity is 9.8 m/s2 . If the ball has a mass of

asked by Brandon on November 4, 2015
9. ## Social Studies

(Can you please check my answers)one major landform that is found in both united states and canada is A. The Kilauea Volcanos B. The Rocky Mountains (C.) The Great Basin D. Mount Logan 2 Why are the Great Lakes important to both the United States and

asked by kate on March 21, 2017
10. ## Electricity and Electronics

1. A transformer has a primary voltage of 115 V and a secondary voltage of 24 V. If the number of turns in the primary is 345, how many turns are in the secondary? A. 8 B. 690 C. 72 D. 1,653 2. To use your left hand to determine the direction of the

asked by StarBuddy on October 3, 2013
11. ## science

1.a modern train traveling at a constant speed around a circular track has a constant velocity true or false 2.which of the following would be affected if a soaring eagle change direction but remained at a constant speed? A.acceleration only B.velocity

asked by Hannah on February 25, 2015
12. ## Calculus 1

The number of yeast cells in a laboratory culture increases rapidly initially but levels off eventually. The population is modeled by the function n = f(t) = a/(1 + be^−0.5t) where t is measured in hours. At time t = 0 the population is 10 cells and is

asked by TayB on October 5, 2015
13. ## physics

Hello I'm having trouble with this physics question: You are examining the loss in intensity as light passes through a fibre optic cable. The input intensity is measured as 55.1 W/m2 and the output intensity as 28.7 W/m2. Calculate the attenuation of the

asked by diana on November 15, 2015
14. ## math

The pH or acidity of liquid is measured in pH, where pH is given by the equation pH=- log C, with C being the concentration of [H+] in multiples of M=1mol/L. Suppose you are given a solution of hydrochloric acid with a pH of 1.7 and asked to increase the

asked by Sara on March 30, 2017
15. ## Physics

A capacitor is constructed from two conducting with a plate separation of d. The voltage between the plates is 31.2 volts and the electric field between the two plates is measured to be E = 2805 V/m. What is the minimum amount of force needed to push an

asked by ALex on June 20, 2013
16. ## mechnics

a helical spring fixed by the upper end carries a load of 5kg attached to its lower end .Mass is set into vibration and is measured to make 2 oscillation per seconds .calculate 1.the stiffness of the spring 2.the acceleration at any condition along the

asked by japhite on February 1, 2016
17. ## chemistry

The pH or acidity of liquid is measured in pH, where pH is given by the equation pH=- log C, with C being the concentration of [H+] in multiples of M=1mol/L. Suppose you are given a solution of hydrochloric acid with a pH of 1.7 and asked to increase the

asked by Sara on March 30, 2017
18. ## psychology

According to Gardner, a)a single general ability underlies all of our abilities to adapt to our environment. b)intelligence is a complex set of abilities made up of several distinct but related domains. c)intelligence cannot be measured by paper and pencil

asked by allee on November 16, 2012
19. ## Scirnce/ math

If a pinecone was thrown from a height of 45 meters and hit the ground 4.5 seconds later, how fast was the pinecone traveling

asked by Becca on September 9, 2012
20. ## Physic

Find the resultant of the following two displacements; 2.0 m 40 degrees 4.0 meters at 127 degrees. the angles are taken relative to the x-axis

asked by Anonymous on May 12, 2017
21. ## physics

If a person were 300 meters above ground and it took them 7.746 secounds to hit the ground, how fast were they traveling?

asked by jamie on April 7, 2010
22. ## science

Two tiny spheres carrying the same charge are 1.4 meters apart in a vacuum and experience an electrical repulsion of 9.6 N. What is their charge?

asked by Anonymous on March 13, 2013
23. ## MATH

DANI NEEDS 8 EQUAL SECTIONS FROM A BOARD THAT IS 13 METERS LONG. WHICH OF THE FOLLOWING DOES NOT PRESENT THE LENGTH OF 1 SECTION OF THE BOARD

asked by MIA on February 24, 2016
24. ## math

A rocket follows a parabolic trajectory. After t seconds, the vertical height of the rocket above the ground, in meters, is given H(t)= 37t-t^2

asked by Anonymous on February 10, 2019
25. ## physics

A horizontal force of 25 newtons pushes a box a distance of 30 meters across the floor. How much work is done by the force?

asked by stephanie on November 23, 2010
26. ## Math

A pattern of mosaic tiles lined up in this order: 8 cm, 5 cm, 8 cm, and 12 cm. How many meters long will be pattern be if it repeats 50 times?

asked by Cons on September 7, 2017
27. ## physics

A car starts from rest and accelerates at 6 m/s/s. How far does it travel in 3 s? Answer in meters. Round answer to the nearest ones.

asked by Anonymous on October 14, 2011
28. ## Chemistry

Calculate your Kinetic Energy in Joules if you weigh50 kg and you are walking 2 meters/second. This is what I did: Ep=50kg x 9.8m/s^2 x 2m/s = 980 Joules. What do I do next?

asked by Anonymous on October 14, 2011
29. ## physics

How far (in meters) above the earth's surface will the acceleration of gravity be 27.0 % of what it is on the surface? can someone please just give me an equation to figure this out please I am lost

asked by jessica on March 13, 2012
30. ## Math

The boy scouts brought 12 meters of rope.theycut one half into pieces of two third in each..how many pieces did they make

asked by Fiona bianca on June 14, 2017
31. ## Math

A pole vaulter cleared the bar at 490 cm. Convert 490 cm to meters using a unit multiplier

asked by Lizzie on January 27, 2011
32. ## physical science

push a box across a tablewith a force of 5 newtons and the box moves 0.5 meters. how much work is been accomplished?

asked by yesenia on January 30, 2013
33. ## physics

Find the resultant of the following two displacements; 2.0 m 40 degrees 4.0 meters at 127 degrees. the angles are taken relative to the x-axis

asked by jenny on September 5, 2016
34. ## physics

Jessica, who mass is 55 kg, is 3.50 meters away from a 0.20 kg bag of Fig Newtons. What is the gravitational force between Jessica and the cookies?

asked by becky on March 1, 2012
35. ## Math

Mai has a piece of cloth that is 8.35 meters long. How many 15 centimeter pieces can she cut from the cloth? How much will be left over?

asked by Anna on April 29, 2016
36. ## math need help please

The area H of a triangle with base b and height h is given by H=1/2bh. Find the area when b=21m (meters) and h=38m.

asked by nonna on November 22, 2008
37. ## Physical Science

A cubic tank holds 1,000kg of water. What are the dimensions of the tank in meters. Explain your reasoning.

asked by Richard on August 29, 2010
38. ## Math

I have a rectangle with a semicircle on each end.the area of the rectangle is 5500 sqare meters. What is the perimeter of the track

asked by Anonymous on March 16, 2017
39. ## Math

A ribbon was cur into twi pieces in the ratio of 3:7. If the shorter ribbon is 21 meters, how long is the longer one?

asked by Mary Antonette on December 10, 2017
40. ## Physics

A ladder 9 meters long is place a wall t base 2 metera away. What is the height reach by the ladder?

asked by Cathy on July 29, 2016
41. ## physics

waves propagate down a 25 gram string at 35 m/s. If the string has a length of 1.5 meters, what is the magnitude of the tension acting on it?

asked by sue on April 16, 2012
42. ## Physics

When the sun is 30.4 degrees above the horizon, you measure the shadow of a tree to be 52.9 meters long. How tall is the tree?

asked by Nathan on September 7, 2012
43. ## physics

An aluminum rod at 18 degrees Celsius has a length of 2.50 meters. At what possible temperatures will it's length change by 1cm?.

asked by help on August 2, 2011
44. ## Algebra world problem

The length of a rectangle is 7 centimeters less than twice its width. Its area is 72 square meters. Find the dimensions of the rectangle.

asked by Anonymous on July 23, 2013
45. ## physics

find the mass of a ball on a roof 30 meters high, if the ball's gravitational energy is 58.8 joules.

asked by Anonymous on November 2, 2014
46. ## Math

She has one board that is 3m7cm long and another board that is 3m 91cm find the total length of he two boards in meters

asked by Leah on November 23, 2015
47. ## physics

A spring with a spring constant of 10 N/m is stretched 0.25 meters and released. How much force is needed to accomplish this? What is the period?

asked by yep on June 27, 2015
48. ## math

A rectangular water tank is5m.high 3m.long and 2m. Wide.how many meters of water can it hold ?

asked by deepti on January 6, 2018
49. ## math

At what time should each boat start so all the boarts will cross the finish line at 100 meters at the same time?

asked by Hector on September 18, 2010
50. ## altgeld

the base of rectangular prism has a length of a m and a width of 4 m. if the volume is 64 cubic meters, what is the height of the prism?

asked by lasean on October 19, 2010
51. ## Physical Science

A cubic tank holds 1,000.0 kg of water. What are the dimensions of the tank in meters? Explain your answer.

asked by Julie on March 6, 2010
52. ## math 113

an object is thrown upwards and its height h(t) in meters after t seconds is given by the equation h(t)=1+4t-5t^2 .when the object hit the ground.

asked by chrop on November 25, 2016
53. ## Math

My Math questions are: Find 1/10 of 1/100 of a meter = 1/10 meters. Find 1/60 of 1/60 of an hour = 1hour Am I correct. Thanks

asked by Americal on October 7, 2013
54. ## physics

a fork lift picks up a crate using 400 N. it moves the crate 20 meters in 50 seconds. how much power is used?

asked by chantel on May 4, 2008
55. ## Math

A rectangular paddock has an area of 240m². Find the breadth if the length is 8 meters longer than the breadth.

asked by Dian on August 14, 2016
56. ## math

The circle below has a radius of 17y meters. Find the exact area and simplify the expression. Use pi for π.(A=πr^2) The area is..

asked by Duran on May 15, 2016
57. ## Math

A ball is thrown with an initial velocity of 10 m/s from a height of 2 meters. At what time does the ball hit the ground?

asked by Ashley on June 17, 2011
58. ## algebra

a rectangular table top measures 6/7 of a meter long by 1/5 of a meter wide. The area is ? meters?

asked by rese on May 6, 2012
59. ## physics - work

Imagine you find a 2 kg book on the floor and lift it 0.75 meters and put it on a table. find the work done ?

asked by Mota on January 16, 2010
60. ## math

A classroom table is 1 meter wide and 1.75 meters long. How many 39 centimeter chairs can fit around the table?

asked by hailey on December 13, 2007
61. ## Physics

PLEASE HELP!! The x and y cooridinates of an object are given by x(t) = (10 m/s)t + (5 m/s2)t2 + (3 m/s3)t3 y(t) = (20 m/s)t - (10 m/s2)t2 + (2 m/s3)t3 where x and y are in meters and t is in seconds. What is the object's acceleration at t = 1 s? Please

asked by Indira on September 14, 2010
62. ## Math

which measure is not equivalent to the others? 0.0048km, 4800mm, 48cm, 4.8 meters I believe the answer is 48cm. It should actually be 480cm correct?

asked by Tyler on January 21, 2009
63. ## math

The length of a rectangle is two more than three times its width. Find the dimensions of the rectangle if the perimeter is twenty meters.

asked by Equations on October 10, 2017
64. ## Physics

Two charges are D = 1.5 m apart and lie on the x-axis. What must be the magnitude of the charge on the right one, Q2, (in C) so that the electric field is zero at x = 1.05 meters. Let Q1 be at the origin and have a charge 6 C.

65. ## math

If the ladder reaches a height of 12 meters up the wall and has its foot 5meter away from it so can you please help me to calculate the length of the ladder

asked by prodigy on October 26, 2015
66. ## physics

An apple falls off a tree branch located 35 meters off the ground. How many seconds does it take to hit the ground?

asked by ray on October 12, 2011
67. ## math

Chester has a ribbon that is 2 meters long. He wants to cut it into 5 equal pieces. How many centimeters long will each piece be?

asked by Amari on March 9, 2015
68. ## PHYICS

A Football is kicked 66.6 meters in 5.39 seconds. What was the initial velocity it was kicked? magnitude and direction above horizontal

asked by Anthony on October 17, 2012
69. ## physics

a book on a shelf 2.0 meters above the floor has a mas of 1.5 kilograms. what is the gravitational potential energy of the book.

asked by Anonymous on January 14, 2012
70. ## physics

A body starting from rest, travels a distance of 45 meters during the fifth second of motion.Calculate the acceleration of the body

asked by Siphelo on September 14, 2009
71. ## physics

A jogger jogs around a circular track with a diameter of 130 meters in 27 minutes. What is the distance around the track?

asked by Judy on October 23, 2011
72. ## calculus

a rectagular sheet of metal has perimeter 36 meters. maximize the volume if the sheet is rolled into a cylinder

asked by john on May 16, 2012
73. ## Physics

A solid ball of mass 2 kg, rolls down a hill that is 6 meters high.  What is the rotational KE at the bottom of the hill?

asked by P on November 28, 2017
74. ## physics

A 20 kg object falls from a height of 30 meters. How many joules of kinetic energy will the object have just before it hits the ground?

asked by luis brito on April 14, 2011
75. ## science

if an engine must do 500 joules of ork to pull a 10 kg load up to a height of 4 meters what is the efficiency of the engine

asked by johanna on March 24, 2009
76. ## Geography

If you measure a distance of 8cm on a 1:50000 map,what will be the real distance on the ground in kilometers and meters ?

asked by Xolisile on March 16, 2017
77. ## physics

find the mass of a ball on a roof 30 meters high, if the ball's gravitational energy is 58.8 joules.

asked by ella on November 3, 2014
78. ## Physics

A brick is thrown off a building at a 25 degree angle at 10m/s, it lands 40 meters away, How high is the building?

asked by Joshua on March 26, 2013
79. ## physics

how to calculate the force exerted by by a man with a mass of 72 kg on the floor of a lift when the lift is accelerating downwards at 0.6 meters per second

asked by oliver on June 25, 2013
80. ## physics

A book on a shelf 2.0 meters above the floor has a mass of 1.5 kilograms. What is the gravitational potential energy of the book?

81. ## physical science

if an engine must do 500 joules of work to pull a 10 kg load up to to a height of 4 meters ,what is the efficiency of the engine ?

asked by llulia on August 3, 2010
82. ## pre calculus

The perimeter of a rectangle is 480 meters and its length is 1.5 times its width. find the dimensions of the rectangle.

asked by nichole on January 7, 2009
83. ## Physics

A solid ball of mass 3 kg, rolls down a hill that is 7 meters high.  What is the rotational KE at the bottom of the hill?

asked by ML on November 28, 2017
84. ## algebra

The area A of a triangle with base b and height h is given by A=1/2bh. Find the area when b=45m(meters) and h=86m.

asked by shawn on May 27, 2011
85. ## physics

The box decelerates at a rate of 3m/s and skids 24 meters becoming to a stop.How fast were you traveling when the box fell out.

asked by Ray on June 21, 2012
86. ## CHEMISTRY

An electron undergoes a transition from an n=3 to an n=1 stationary state and red light is released. Which of the following forms of electromagnetic radiation could be released for an n=2 to n=1 electron transition within the same atom? -blue visible light

asked by Ashley on March 20, 2014
87. ## Social Studies

Which factor best explains the climate distribution of northern Brazil? Being located at tropical latitudes The affects of the flow of cool ocean currents Distance from the continental shelf Elevation above sea level Since it is located near the equator

asked by Sue on October 22, 2014
88. ## EARTH SCIENCE

Cumulus and stratus clouds belong to which cloud group? A. Puffy clouds B. High clouds C. Middle clouds D. Low clouds Is it A? What is the basic cause of ocean tides? A. Gravitational force of volcanic activity B. Gravitational attraction between the Moon

asked by Beatrice on January 25, 2014
89. ## physics

a 0.60 kgparticle has a speed og 2.0m/s at point A and a kineticenergy at point B. What is it's kinetic energy at point A ? What is its speed ?

asked by sarry on September 13, 2014
90. ## Physics

A student throws a baseball at a large gong 73 m away and hears the sound of the gong 1.7744 s later. The speed of sound in air is 330 m/s. What was the average speed of the base- ball on its way to the gong? (For simplicity, assume its trajectory to be a

asked by Leslie on May 8, 2011
91. ## Physics

A 58 kg skier is coasting down a 250 slope. Near the top of the slope, her speed is 3.6 m/s. She accelerates down the slope because of the gravitational force, even though a kinetic frictional force of magnitude 71 N opposes her motion. Ignoring air

asked by Amiel on March 18, 2015
92. ## math

Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 7.9-kg projectile from rest to a speed of 2.8 × 103 m/s. The net force accelerating the projectile

asked by Thomas on January 5, 2017
93. ## Physics

A soccer play kicks the ball toward a goal that is 29m in front of him. The ball leaves his foot at a speed of 19m/s and at an angle of 32degrees above the ground. Find the speed of the ball when the goalie catches it in front of the net. my work: vxi=16.1

asked by Morgan on October 30, 2016
94. ## physics

A soccer player kicks the ball toward a goal that is 27.8 m in front of him. The ball leaves his foot at a speed of 18.5 m/s and an angle of 30.4° above the ground. Find the speed of the ball when the goalie catches it in front of the net. (Note: The

asked by Kelly on January 26, 2012
95. ## physicsh

Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 4.8-kg projectile from rest to a speed of 3.9 103 m/s. The net force accelerating the projectile is 4.8

asked by butcha on October 31, 2013
96. ## physics

Ian is firmly attached to a snowboard which is on a flat surface of ice, which you can assume to be frictionless. He and the snowboard are initially at rest. He then throws a 138 g ball which travels at a speed of 19.2 m/s, and finds himself moving

asked by Lydia on November 8, 2011
97. ## Physics

An open train car, with a mass of 2150 kg, coasts along a horizontal track at the speed 2.29 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 2.67 s at the rate of 441 kg/s. What is the car's speed after the

asked by Kyle on November 19, 2012
98. ## physics

Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test, this gun accelerates a 7.0 kg projectile from rest to a speed of 4.0 x 103 m/s. The net force accelerating the projectile is 4.9

asked by paul on September 20, 2013
99. ## physics

A 100-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track Show that the final speed of the toy car is 0.687 m/s if its initial speed is 2.00 m/s and it coasts up the frictionless slope, gaining 0.180 m in

asked by effraim on March 25, 2014
100. ## physics

A vehicle with a mass of 2 tons travels on a horizontal road at a speed of 126km/h.The driver notices a donkey at the side of the road and decides to reduce speed. The brakes are applied and the vehicle slows down to 72km/h after 5 seconds. Calculate the

asked by leslie on March 6, 2013