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August 27, 2016

Search: A helium balloon can just lift a load of 790 N. The skin of the balloon has a mass of 1.6 kg.

Number of results: 48,612

chem
A very flexible helium-filled balloon is released from the ground into the air at 20degree C The initial volume of the balloon is 5.00L , and the pressure is 760mmHg. . The balloon ascends to an altitude of 20Km , where the pressure is 76.0mmHg and the temperature is -50degree...
November 1, 2012 by chemdummy

Physics
After rubbing a balloon against someone's hair, a balloon has accumulated a static electric charge. The air inside the balloon has the same density as the air outside of the balloon, and the balloon itself weighs 1.41mN. How many free electrons are there on the surface of the ...
January 30, 2012 by Anonymous

physics
Help, the last equation given to me on previous question was incorrect and I took a 0 % on my assignment !!! A mountain-climber friend with a mass of 82 kg ponders the idea of attaching a helium-filled balloon to himself to effectively reduce his weight by 25% when he climbs...
April 3, 2012 by christy

Physics
If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the balloon?
October 27, 2010 by George

Science HELP!
If a balloon is filled with helium gas of molar mass 4x10^-3, at a pressure of 1*10^5, What is the number of moles of gas in the balloon?
October 27, 2010 by George

chem
A typical party balloon when inflated has a volume of 7.3 L. How many moles of helium are in the balloon if the pressure of helium is 1.2 atm and the temperature is 20.7 C? Take the value of R to be 0.08206 L-atm/mol-K.
July 26, 2012 by hhh

science
a balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa?
May 20, 2010 by Brad

chemistry
A very flexible helium-filled balloon is released from the ground into the air at 20 degree C. The initial volume of the balloon is 5.00 L, and the pressure is 760 mmHg. The balloon ascends to an altitude of 20km, where the pressure is 76.0 mmHg and the temperature is -50 ...
October 20, 2012 by Liang

chem
A very flexible helium-filled balloon is released from the ground into the air at 20. ∘ C . The initial volume of the balloon is 5.00 L , and the pressure is 760. mmHg . The balloon ascends to an altitude of 20 km , where the pressure is 76.0 mmHg and the temperature is...
March 18, 2015 by dakota

Chem
A balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa? Assume that the temperature remains constant
January 19, 2011 by Shrell

Chem
A balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa? Assume that the temperature remains constant
January 19, 2011 by Shrell

Chem
A balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa? Assume that the temperature remains constant
January 19, 2011 by Shrell

science
You are a maker of hot air balloons and wish to construct a balloon that will lift you and a friend to places unknown. Your standard balloon design is a perfectly spherical, nylon fabric balloon with a small hole on the bottom for the burner that heats the air. Nylon starts to...
April 11, 2013 by Sahil

Physics :(( help please TT
You are a maker of hot air balloons and wish to construct a balloon that will lift you and a friend to places unknown. Your standard balloon design is a perfectly spherical, nylon fabric balloon with a small hole on the bottom for the burner that heats the air. Nylon starts to...
April 12, 2013 by Ian

Chemistry
A hot air balloon has a volume of 5.00x10^6 liters. Assuming a density of air of 1.293g/L at 25C and 1atm pressure, what temperature must the operator of the balloon achieve in order for the balloon to lift a 500.0kg payload? How do I set this up???????
March 18, 2015 by Emily

Physics
A helium balloon lifts a basket and cargo of total weight 2250 N under standard conditions, at which the density of air is 1.29 kg/m3 and the density of helium is 0.178 kg/m3 . What is the minimum volume of the balloon? The acceleration of gravity is 9.81 m/s2 . Answer in ...
December 5, 2011 by help

Physical Science 8th grade
A balloon filled with air does not rise as a balloon filled with helium. What does this tell you about the density of helium? A. Helium is more dense than air B. Helium is less dense than air C. The two gases have the same density D. When heated, helium becomes more dense
September 8, 2014 by Brittany

Physics
A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.036 m3 of helium at an absolute pressure of 1.2 x 10^5 Pa. The cylinder contains helium at an absolute pressure of 1.6 x 10^7 Pa and has ...
April 15, 2007 by Mary

Chemistry
A balloon holds 27.8 kg of helium. What is the volume of the balloon if the pressure is 0.97 atm and the temperature is 24 C
May 27, 2015 by Yakima valley communtiy college

General Chemistry
A balloon is filled with helium gas at 23 degrees C. The balloon expands until the pressure is equal to the atmospheric pressure of 755 toor. The balloon rises to an altitude of 6000 feet where the pressure is 550 toor and the temperature is 5 degrees C. Calculate the percent ...
September 4, 2011 by Ronnica

Calculus
A helium balloon rises vertically at 3.5m/s as the wind carries it horizontally at 5.0m/s. What is the resultant velocity of the balloon?
May 31, 2013 by Alice

Chemistry
You are completing tests using a weather balloon and want to check the temperature at 3000 meters into the air. You check if the balloon will not burst before it gets to that altitude. You will need to perform a few calculations. The manufacturer of the balloon guarantees it ...
April 3, 2016 by Anonymous

Chemistry
A toy balloon originally held 1.00 g of helium gas and had a radius of 10.0 cm. During the night, 0.25 g of the gas effused from the balloon. Assuming ideal gas behavior under these constant pressure and temperature conditions, what was the radius of the balloon the next morning?
September 12, 2012 by Dia B

AP Chemistry
A 2.50 L balloon is filled with helium gas at sea level, 1.00 atm and 32 degrees celsius. The balloon is released and it rises to an altitude of 30,000 ft. If the pressure at this altitude is 228 mm Hg and the temperature is -44 degrees celsius, what is the volume of the balloon?
November 1, 2012 by Katie

Physics
What minimum sized balloon would you have to fill in order to be able to be lifted into the air? Take your mass to be 100 kilograms and the temperature of the outside air to be 20 degrees C. Neglect the mass of the balloon rubber and basket and assume that the balloon is ...
March 15, 2013 by steve

Chemistry
a helium balloon is partially filled with 28.7 L of gas at 25.0 degress celcius and a pressure of 1 atm. if the balloon is released and it floats up intp the atmosphere to a heightwhere the pressure is 2.8 x 10^-3 atm and the temperature is -24.0 degrees celcius, calculate the...
December 8, 2011 by Dani

PHYSICS
Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 308 kg. The balloon is motionless in the air, because the downward-acting weight of the people and balloon is balanced by an upward-acting 'buoyant' force. If the buoyant force ...
September 23, 2010 by Sarah

physics
Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 310 kg. The balloon is motionless in the air, because the downward-acting weight of the people and balloon is balanced by an upward-acting buoyant force. If the buoyant force ...
January 4, 2011 by Anonymous

physics
Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 328 kg. The balloon is motionless in the air, because the downward-acting weight of the people and balloon is balanced by an upward-acting 'buoyant' force. If the buoyant force ...
October 4, 2012 by Donald

physics
Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 284 kg. The balloon is motionless in the air, because the downward-acting weight of the people and balloon is balanced by an upward-acting 'buoyant' force. If the buoyant force ...
September 26, 2013 by Donna

trigonometry
a captive balloon is connected to a ground station A by a cable of length 842 ft inclined 65 degrees to the horizontal. In a vertical plane with the balloon and its station and on the opposite side of the balloon from A, a target B was sighted from the balloon on a level with ...
August 26, 2014 by rhinechilde

trigonometry
a captive balloon is connected to a ground station A by a cable of length 842 ft inclined 65 degrees to the horizontal. In a vertical plane with the balloon and its station and on the opposite side of the balloon from A, a target B was sighted from the balloon on a level with ...
August 27, 2014 by rhinechilde

math
a captive balloon is connected to a ground station A by a cable of length 842 ft inclined 65 degrees to the horizontal. In a vertical plane with the balloon and its station and on the opposite side of the balloon from A, a target B was sighted from the balloon on a level with ...
August 27, 2014 by rhinechilde

Physics
A 5.00 x 102 kg hot air balloon takes off from rest at the surface of the earth. The buoyant force lifts the balloon straight up, performing 9.70 x 104 J of work on the balloon. At the instant the balloon's upward speed is 4.08 m/s, the balloon will be ____ m above the surface...
November 18, 2014 by Help

physics
Helium balloons are used regularly in scientific research. A typical balloon would reach an altitude of 45.0 km with an air density of 4.310−3 kg/m3. At this altitude the helium in the balloon would expand to 540000.0 m3. Take g=10 m/s2. Find the buoyant force on the ...
December 14, 2013 by Anonymous

chemistry
A weather balloon is filled with 0.295 m3 of helium on the ground at 18 C and 756 torr. What will the volume of the balloon be at an altitude of 10 km where the temperature is 48 C and the pressure is 0.14 atm?
November 5, 2014 by jun

AP Chemistry
The buoyant force on a balloon is equal to the mass of air it displaces. The gravitational force on the balloon is equal to the sum of the masses of the balloon, the gas it contains, and the balloonist. If the balloon and balloonist together weight 175 kg, what would the ...
October 11, 2010 by Emma

physics
an 80 kg boy holding on to a helium balloon jumps off of a 20m tall building and floats to the ground. If the boant force of the balloon is 750 N upward, what is the boy's acceleration and final velocity just before he touches the ground?
October 4, 2011 by zahid

chemistry
A helium balloon is filled to a volume of 5.60 L at 25∘C. What will the volume of the balloon become if it is put into liquid nitrogen to lower the temperature of the helium to 77 K? A helium balloon is filled to a volume of 5.60 at 25. What will the volume of the ...
April 13, 2015 by Nadia

science
What volume of helium would be in a balloon the size of a soft drink bottle? What's the volume of the small drink bottle? That's how much helium would be there. no the question was WHAT WAS THE VOLUME OF HELIUM WOULD BE IN A BALLOON THE SIZE OF A SOFT DRINK BOTTLE? no the ...
January 31, 2007 by smart monkey girl96

chemistry
hot-air balloon is filled with air at a volume of 3.64 x 10^3 m^3 at 745 torr at 39C. the air in balloon is heated to 60C, causing balloon to expand to a volume of 4.50x 10^3 m^3. what is the ratio of the number of moles of the air in heated balloon to original number of moles...
November 15, 2007 by mel

physics
Suppose that, on a day when the outside temperature is 15 degrees Celsius, we fill a balloon with pure nitrogen gas, of which the molar mass is 28 grams per mole. Now suppose that we want to heat up a second (equally large) balloon containing air, such that it generates the ...
March 27, 2014 by Nick

physics
find the mass of a balloon filled with helium if its volume is .25 m cubed the density of the helium is .178
September 2, 2012 by Ashley

Math
A water balloon is shot into the air so that its height h, in metres, after t seconds is h = 4.9t^2 + 27t + 2.4 a)How high is the balloon after 1 s? b)For how long is the balloon more than 30 m high? c)What is the maximum height reached by the balloon? d)When will the balloon...
January 22, 2009 by gagan

Chemistry
A balloon is filled with 0.75 L of helium gas at 1 atm pressure and 25 degrees Celsius. The balloon is released and floats upward in the atmosphere. The temperature drops to 23 degrees Celsius and the balloon expands to 1.50 L. What is the pressure at this altitude? Assume the...
April 25, 2010 by Zecnoe

Chemistry
A helium balloon contains 0.54g of helium. Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?
February 22, 2013 by Mira

chemistry
A helium balloon contains 0.30g of helium. Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?
September 24, 2014 by bob

Chemistry
A helium balloon contains 0.50 g of helium. Given the molecular weight of helium is 4.0 g/mol, how many moles of helium does it contain?
July 3, 2015 by Anonymous

Chemistry
A sealed balloon is filled with 1.20 L of helium at 23C and 1.00 atm. The balloon rises to a point in the atmosphere where the pressure is 250. torr and the temperature is -27C. What is the change in volume of the balloon as it ascends from 1.00 atm to a pressure of 250. torr?
November 21, 2011 by Alice

Chem
A sealed balloon is filled with 1.00 L of helium at 23C and 1.00 atm. The balloon rises to a point in the atmosphere where the pressure is 299 torr and the temperature is -31C. What is the change in the volume of the balloon as it ascends from 1.00 atm to a pressure of 299 ...
July 18, 2016 by Anthony

chem
A balloon holds 29.3 kg of helium. What is the volume of the balloon if the final pressure is 1.2 atm and the temperature is 22C? using the equation pv=nrt would i put 29.3 kg in place of n? but n has to be in moles so how do you convert that? thanks
February 14, 2011 by hannah

physics
the instruments attached to a weather balloon have a mass of 5.0 kg. the balloon is released and exerts an upward force of 98 N on the instruments. (a) what is the acceleration of the balloon and instruments? (answer is 9.8 m/s^2.. just dont know how to get there..) (b)after ...
October 10, 2011 by tayler

physics
the instruments attached to a weather balloon have a mass of 5.0 kg. the balloon is released and exerts an upward force of 98 N on the instruments. (a) what is the acceleration of the balloon and instruments? (answer is 9.8 m/s^2.. just dont know how to get there..) (b)after ...
October 10, 2011 by tayler

chemistry
a weather balloon with a 2 meter diameter at ambiient tempatures holds 525 grams of helium. what type of electroniic probe could be used to determine the pressure inside the balloon
January 18, 2011 by eric

Chemistry
The buoyant force on a balloon is equal to the mass of air it displaces. The gravitational force on the balloon is equal to the sum of the masses of the balloon, the gas it contains, and the balloonist. If the balloon and balloonist together weight 175 kg, what would the ...
October 11, 2010 by Emma

AP Chemistry
The buoyant force on a balloon is equal to the mass of air it displaces. The gravitational force on the balloon is equal to the sum of the masses of the balloon, the gas it contains, and the balloonist. If the balloon and balloonist together weight 175 kg, what would the ...
October 12, 2010 by Em

physics
A hot-air balloon of mass 200 kg is descending vertically with downward acceleration of magnitude 1.2 m/s2. How much mass (ballast) must be thrown out to give the balloon an upward acceleration of magnitude 1.2 m/s2 (same magnitude but opposite direction)? Assume that the ...
March 2, 2011 by karim

physics
A hot-air balloon of mass 200 kg is descending vertically with downward acceleration of magnitude 1.2 m/s2. How much mass (ballast) must be thrown out to give the balloon an upward acceleration of magnitude 1.2 m/s2 (same magnitude but opposite direction)? Assume that the ...
March 2, 2011 by karim

Chemistry
A hot air balloon is filled with hot air and the hot air forces the volume of the balloon to expand until the density of the gas in the balloon is less than the density of the outside air. The volume must be 20% larger than the balloon would be at STP in order for the balloon ...
April 25, 2016 by KS

science
hellium gas is added to a balloon already partially filled with helium gas.why does the balloon inflate?
August 21, 2011 by cham

Physics
The instruments attached to a weather balloon have a mass of 5.2 kg. The balloon is released and exerts an upward force of 98 n on the instruments. A)what is the acceleration of the balloon and instruments? B) after the balloon has accelerated for 10s, the instruments are ...
January 12, 2013 by Jules

physics 2B
physics 2B---- A toy balloon is filled with helium gas ( He}) at 1atm} and 30 degrees Celcius. If the volume of the balloon is 0.025 m^3, how many atoms does it contain?
December 10, 2011 by Celi

chemistry
a 3.0L helium balloon is placed in a car sitting in hot sunlight. The temperature in the mall, when the balloon was bought, was 22C. The temperature in the car is 45C. what will be the new volume of the of the balloon. Will it be: 6.14L? I would think this looks right but the ...
March 22, 2008 by Jonathan T

Algebra-Trig Please Help ASAP
A balloon isin the vertical plane of two consecutive milestones of a road. The angles of depression of the stones as viewed from the balloon are 15 degrees and 17 degrees. Find the height of the balloon if (a) the stones are on opposite sides of the balloon, (b) the stones are...
February 15, 2012 by Candy

physics
a hot air balloon rise above the ground, accelerating upwards at a rate of 2 m/s^2. The total mass of the hot air balloon and it occupants is 400kg. the density of the air is 1.3 kg/m^3. a) Determine the volume if the hot air balloon. b) if this acceleration is maintained for ...
September 1, 2010 by Mikey

physics
In a water balloon toss a contestant throws her balloon with a speed of 4.84 m/s at an angle of 16.5 degrees above the horizontal. Find the maximum height, the time of flight and the range of the balloon assuming her partner catches the balloon at the same height at which it ...
February 6, 2012 by becky

Chemistry
A hot air balloon is filled with hot air and the hot air forces the volume of the balloon to expand until the density of the gas in the balloon is less than the density of the outside air. The volume must be 20% larger than the balloon would be at STP in order for the balloon ...
April 25, 2016 by Chem

chemistry
A hot air balloon is filled with hot air and the hot air forces the volume of the balloon to expand until the density of the gas in the balloon is less than the density of the outside air. The volume must be 20% larger than the balloon would be at STP in order for the balloon ...
April 25, 2016 by jenna

Geography
Hot air balloon A is raising upward at a rate of 10.0 m/s. A passenger aboard balloon A observers balloon B going down at a relative rate of 12.5 m/s. What is the velocity of balloon B relative to the group?
January 19, 2016 by Maricela

mechanics
A halogen gas failed balloon released frim the ground,travels vertically up with a constant acceleration of 2m/s^2.Three seconds later,a stone is projected vertically up from the ground to hit the ascending balloon.The stone just manages to touch the balloon at the peak of its...
November 23, 2014 by sneha

Physics
A water balloon launcher launches a balloon straight up at a flying kite. If the kite is hovering 75.0 meters off the ground, and the balloon hits it on its upward trajectory with a velocity of 12.2m/s, a) What was the launch velocity of the balloon
June 19, 2016 by Anon

Math
a balloon is rising vertically at the rate of 2 m/s. an observer is standing on the ground 100m away from a point directly below the balloon. at what rate is the distance between the observer and the balloon changing when the balloon is 160m high?
September 13, 2012 by Gladys Garcia

Physic
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.4 L in the warm store at 74 F. When he takes it outside, where the temperature is 55 F, he finds it has shrunk. By how much has the volume decreased?
May 7, 2011 by Anonymous

Physic
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.4 L in the warm store at 74 F. When he takes it outside, where the temperature is 55 F, he finds it has shrunk. By how much has the volume decreased?
May 7, 2011 by Anonymous

chemistry
a balloon filled with helium gas occupies 2.50 L at 25C and 1.00 atm. When released, it rises to an altitude where the temperature is 20C and the pressure is only 0.30 atm. Calculate the new volume of the balloon.
September 28, 2015 by hayley

physics
A hot-air balloon plus cargo has a mass of 1740 {\rm kg} and a volume of 12030 {\rm m^3}. The balloon is floating at a constant height of 6.25 {\rm m} above the ground. What is the density of the hot air in the balloon?
January 26, 2012 by Dave

physics
A hot-air balloon plus cargo has a mass of 1740 {\rm kg} and a volume of 12030 {\rm m^3}. The balloon is floating at a constant height of 6.25 {\rm m} above the ground. What is the density of the hot air in the balloon?
January 26, 2012 by Dave

Calculus
t: 0 2 5 7 11 12 r'(t): 5.7 4.0 2.0 1.2 0.6 0.5 The volume of a spherical hot air balloon expands as the air inside the balloon is heated. The radius of the balloon in feet is modeled by a twice-differentiable function of r of time t, where t is measured in minutes. For 0<t...
November 25, 2008 by Craig

Physics
A water balloon is thrown horizontally at a speed of 2.00 m/s from a roof of a building that is 6.00 m above ground. At the same instant the balloon is released a second balloon is thrown straight down at 2.00 m/s from the same height. Determine which balloon hits the ground ...
September 25, 2012 by Lisa K.

balloon
if an inflated balloon is placed in the freezer as the temperature of the gas of the balloon decrease the speed of the particles will do what
September 11, 2011 by Anonymous

Calc
A balloon, 50 feet from an observer is rising at 20 ft/sec. At 5 sec after lift off, a)how fast is the distance between the observer and the balloon changing? b)How fast is the angle of elevation changing. I just need to know what formals to use. I know the first part requires...
March 16, 2015 by Ryan kustin

Physics
A monkey is hanging from a branch located exactly 24 meters along the ground from the hunter. The monkey is 14 meters above the ground. The hunter aims directly at the monkey and fires a water balloon at the monkey just as the monkey releases his grip. The balloon has an ...
September 16, 2012 by kris

geometry
you are at a parade looking up at a large balloon floating directly above the street. you are 60 feet away from a point on the street directly Beneath the balloon. to see the top of the balloon your angle of elevation is 53. to see the bottom of the balloon your angle of ...
April 21, 2016 by Susie

math
A water balloon is shot into the air so that its height h, in metres, after t seconds is h = 4.9t^2 + 27t + 2.4 a)How high is the balloon after 1 s? b)For how long is the balloon more than 30 m high? c)What is the maximum height reached by the balloon? d)When will the balloon...
January 23, 2009 by gagan

physics
A water balloon is dropped from the top of a building. Assume the balloon does not break when it strikes the ground. If the water balloon falls a distance of 21m, what is the maximum temperature rise of the water balloon due to it being dropped?
October 12, 2010 by Maria

physics
A water balloon dropped from a dorm window does not break on impact. From what height would you need to drop the balloon to double the speed of the balloon?
February 25, 2011 by brittany

chemistry
A helium balloon contains 0.26 g of helium. How many moles of helium does it contain?
November 17, 2008 by pip

Physics
The instruments attached to a balloon have a mass of 5kg. The balloon is released and exerts an upward force of 100 N. After the balloon has accelerated for 10s, the instruments are released. What is the velocity of the instruments at the moment of release?
November 2, 2015 by Bill

Physics
A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.00280 m3 of helium at an absolute pressure of 1.20 x 105 Pa. The cylinder contains helium at an absolute pressure of 2.90 x 107 Pa and ...
August 22, 2015 by Anonymous

Physical Science
A water balloon dropped from a dorm window does not break on impact. From what height would you need to drop the balloon to double the speed of the balloon?
February 25, 2011 by Miguel

Chemistry
A helium-filled balloon has a volume of 2.68 L at 15◦C. The volume of the balloon decreases to 2.33 L after it is placed outside on a cold day. What is the outside temperature in K? Answer in units of K.
March 29, 2015 by Maggie

chemistry
A high-altitude balloon contains 97.5 L of helium gas at 95.8 kPa. What is the volume when the balloon rises to an altitude where the pressure is only 21.5 kPa? (Assume that the temperature remains constant.)
March 2, 2011 by lisa

chemistry
A helium-filled balloon has a volume of 2.83 L at 30 ◦ C. The volume of the balloon decreases to 2.35 L after it is placed outside on a cold day. What is the outside temperature in K? Answer in units of K?
March 26, 2012 by Kellie

Chemistry
A balloon filled with helium has a volume of 1.oo x 10^3 L at 20 degrees c. What will be the balloons volume at 30 degrees c, if the pressure surrounding the balloon remains constant?
September 23, 2010 by Lisa

Math
The hot air balloon operator allows the balloon to descend at a rate of 23 ft per minute. If they have been descending for 6 minutes how far has the balloon descended?
December 6, 2015 by Emma

physics
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 5.7 m long, 2.7 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When ...
March 10, 2013 by chel

Physics
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.0 m long, 2.2 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When ...
April 19, 2014 by Linda

Trigonometry
A HOT AIR BALLOON IS 70 m ABOVE THE SEA. TWO BUOYS A AND B ARE DUE EAST OF THE BALLOON. THE ANGLE OF DEPRESSION FROM THE BALLOON TO BUOY A IS 60. THE ANGLE OF DEPRESSION FROM THE BALLOON TO THE BUOY B IS 40. CALCULATE DISTANCE AB.
June 16, 2016 by Anonymous

Physics
Hey, it's me again, Can someone help me with this question? A water balloon is dropped from the top of a building. Assume the balloon does not break when it strikes the ground. If the water balloon falls a distance of 21m, what is the maximum temperature rise of the water ...
June 28, 2011 by Josh

Physics
A hot air balloon is hovering at an altitude of 6000 meters. The pilot decides that it is time to descend and turns off the balloon's burners. Once the balloon reaches the ground, the gas inside the balloon occupies 980 m^3 and is at atmospheric pressure. If the pressure of ...
February 18, 2012 by GRISSELL

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