You are consulted by a company to assess the economic potential of the iceberg towing scheme. The company proposes to lasso an iceberg off the coast of Greenland, and tow it 2000km to the South East of England. (a) Estimate how large an iceberg can feasibly be towed by a 10,000 kW tug-boat at a speed of Im/s. Take the density of sea-water to be 1025 kg/m'. (b) Estimate how much the iceberg would melt during its journey, if the average sea temperature is 8°C.

You are consulted by a company to assess the economic potential of the iceberg towing scheme. The company proposes to lasso an iceberg off the coast of Greenland, and tow it 2000km to the South East of England. (a) Estimate how large an iceberg can feasibly be towed by a 10,000 kW tug-boat at a speed of Im/s. Take the density of sea-water to be 1025 kg/m'. (b) Estimate how much the iceberg would melt during its journey, if the average sea temperature is 8°C.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 45P

See similar textbooks

Similar questions

A dog of mass Md is standing on a raft so that he is a distance Xdgi=L from the shore.
A large aquarium of height 5.00 m is filled with fresh water to a depth of 2.00 m. One wall of the aquarium consists of thick plastic 8.00 m wide. By how much does the total force on that wall increase if the aquarium is next filled to a depth of 4.00 m?
Suppose a 20,000 kg jet lands on the surface of an aircraft carrier. As it lands, it engages a tailhook wire, a wire which behaves as if it were connected to a spring with a spring constant of Ks = 25,000 J/m2. This slows the jet down to rest within 60 m. What was the jet's landing speed? (Actual tail hooks use hydraulics instead of a spring to absorb the just energy, but let's pretend).
In a hydroelectric dam, water falls 30.0 mm and then spins a turbine to generate electricity. What is ΔUΔU of 1.0 kg of water? Express your answer with the appropriate units.
In order to keep a leaking ship from sinking, it is necessary to use 117.6 N of force to pump 12 kg of water each second from below deck 2.1 meters upwards every second. What is the minimum power motor that can be used to save the ship? Round your answer to the nearest whole number.
it is estimated that 7x10kg of water pours over the Niagra falls every second. If the falls are 50m high, and if all the enrgy of the falling water could be harnessed, what power would be available?
A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 45 meters above the ground. This takes 18 minutes, during which time 8 kg of water drips out at a steady rate through a hole in the bottom. Find the work needed to raise the bucket to the platform. (Use g=9.8m/s^2) (include units)
Water is pumped from a river with a depth of 80m to a reservoir on the surface at a rate of 10m^3/hr (cubic meter per hour). What is the minimum power in watts required in pumping the water up?
A patient's heart pumps 5.00 L of blood per minute into the aorta, which has a diameter of 1.80 cm. The average force exerted by the heart on the blood is 16.5 N. Waht is the average mechanical power output of the heart?
What was his kinetic energy at the moment he was 75m from the waters surface? What was his speed at that moment?
A circular swimming pool has a diameter of 9ft and the sides are 4ft high, and the depth of the water is 3ft. How much work (in ft-lb) is required to pump all of the water out over the side? (Use the fact that water weighs 62.5 lb/ft3 . Roundyour answer to the nearest integer.)
The turbines in a hydroelectric plant are fed by water falling from a 40 m height. Assuming 90% efficiency for conversion of potential to electrical energy, and 6% loss of the resulting power in transmission, what is the mass flow rate of water (in kg/min) required to power a 150 W light bulb? [Write your answer to the nearest whole number]