Question
In: Physics
A submarine changes its _____ when it wants to dive. A) mass B) volume
A submarine changes its _____ when it wants to dive. A) mass
B) volume
Solutions
Expert Solution
When an object is placed in a fluid a force, called the buoyant force, acts to push the object upwards. The strength of the force is equal to the weight of the volume of fluid displaced by the object.
It is
the objects volume, not its weight that determines the buoyant
force.
Take a submarine, for example, the buoyant force acts to push it to
the surface while the weight of the submarine acts to push it to
the bottom. The strength of these two opposing forces determines if
the sub rises or sinks in the water.
A submarine however, can only control its weight, since the buoyant force can only be adjusted by a change in volume. This is unlikely to happen since the hull is inflexible and designed to withstand high water pressure that would crush it at great depths
A submarine sinks if it takes in water to increase its weight
(force acting downward). It will rise if it expells water from its
tanks, therefore making itself lighter.
As it rises, the buoyant force is greater than the force acting to
push it down (weight).
As it sinks the force pushing it down (weight) is greater than the
buoyant force pushing it up.
genius_generous answered 2 years agoRelated Solutions
b. When the volume of the flask is determined, the mass of the air is not...
b. When the volume of the flask is determined, the
mass of the air is not important. Explain why. c. Explain why we
consider the mass of the air in the"empty" flask when we are
calculating the mass of the flask(Equation 8), but we do not
consider the mass of air when calculating the volume of
CO2(Equation 6). 2. At STP, what volume of CO2 could be generated
from 3.0 g of marble chips? 3. At ordinary lab conditions of...
In osmosis, when will there be changes in volume of the two compartments separated by a...
In osmosis, when will there be changes in volume of the two
compartments separated by a selectively permeable membrane?
A.
When particles in solution are prevented from crossing the
membrane (nonpenetrating solutes).
B.
When the water concentrations on both sides of the compartments
are the same.
C.
When particles in solution can diffuse across the membrane along
with water.
D.
When the solutes concentration on both sides of the compartments
are the same.
What is the total volume of the solution when an indicator, HIn, first changes color if...
What is the total volume of the solution when an indicator, HIn,
first changes color if the Ka = 3.4 x 10^-6 and 30.0 mL solution of
0.40 M Ba(OH)2 is titrated with 0.25 M HCl using this indicator.
Show work.
When an iron object rusts, its mass increases. When a match burns, its mass decreases. Do
When an iron object rusts, its mass increases. When a match burns, its mass decreases. Do these observations violate the law of conservation of mass? Explain.
Cost-Volume-Profit Analysis: Analyze cost behavior in relation to changes in volume. Define contribution margin and its...
Cost-Volume-Profit Analysis: Analyze cost behavior in relation
to changes in volume. Define contribution margin and its use in
computing operating income. Discuss cost-volume-profit (CVP)
analysis and how it is used as a decision too.
The mass of a 270. mL beaker is 178 g when empty. Determine its mass when...
The mass of a 270. mL beaker is 178 g when empty. Determine its
mass when filled with the following substances.
(a) water (density 0.9970 g/cm3 at 20°C)
____ g
(b) alcohol (density 0.7893 g/cm3 at 20°C)
____ g
(c) mercury (density 13.546 g/cm3 at 20°C)
____ g
(d) Explain why mercury containing pollutants are usually found in
the mud at the bottom of a lake of stream.
-Mercury has a negative charge and is attracted to the
positively charged...
1) A submarine has a total mass of 2.19 106 kg, including crew and equipment. The vessel...
1) A submarine has a total mass of
2.19 106 kg, including crew and equipment.
The vessel consists of two parts, the pressure hull, which has a
volume of 2.00 103 m3, and the
ballast tanks, which have a volume of
5.10 102 m3. When the boat cruises
on the surface, the ballast tanks are filled with air at
atmospheric pressure; to cruise below the surface, seawater must be
admitted into the tanks. (Neglect the mass of air in the tanks and
use...
1. The mass of a liquid is 200 cg and its volume is 50 cm3. Report...
1. The mass of a liquid is 200 cg and its volume is
50 cm3. Report its density in g/mL.
2. The specific heat of copper is 0.093 cal/g °C and
the specific heat of silver is 0.057 cal/g °C. If 200 cal of heat
is added to 1g of each, which of them will have a higher
temperature?
3. Calculate the heat energy evolved when 5.46 g of
water rises in temperature from 25 °C to 74 °C. (the...
When the U.S. submarine Squalus became disabled at a depth of 54.6 m, a cylindrical chamber...
When the U.S. submarine Squalus became disabled at a
depth of 54.6 m, a cylindrical chamber was lowered from a ship to
rescue the crew. The chamber had a radius of 2.71 m and a height of
2.35 m, was open at the bottom, and held two rescuers. It slid
along a guide cable that a diver had attached to a hatch on the
submarine. Once it reached the hatch and clamped to the hull, the
crew could escape into...
What changes are seen in the amino acids when hemoglobin changes its state from t state...
What changes are seen in the amino acids when hemoglobin changes
its state from t state to r state? Explain all tge interactions of
the subunits.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Samsung Industry that requires you to act as a change agent to form an organizational change...
- Use fork() Create a program that reads characters from an input file. Use fork to create...
- A pension fund manager is considering three mutual funds. The first is a stock fund, the...
- Compute the cost of not taking the following cash discounts. (Use a 360-day year. Do not...
- During his project presentation, Bob falls sick and performs poorly. However, his colleague, Dan, concludes that...
- A sample human input file that contains test values that a human would enter on the...
- A solution is prepared by dissolving 15 ml of methanol in 150.0 ml water at 25...
ADVERTISEMENT