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To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is .0126 kg, and its initial temperature is -10.4 °C. The water resulting from the melted ice reaches the temperature of your skin, 28.1 °C.
How much heat is absorbed by the ice cube and resulting water? Assume that all the water remains in your hand.
Two blocks of weights 70.0 and 100.0 N are connected by as massless string and slide down an inclined plane making an angle of 42.0 deg. find the magnitude of the heavier block's acceleration
A 0.450-kg block of wood hangs from the ceiling by a string, and a 7.30×10?2-kg wad of putty is thrown straight upward, How high does the putty-block system rise above the original position of the block
Find the direction of the net force exerted on the Sun. Give the direction relative to the line connecting the Sun and the Moon
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
In order to drop a Pyrex glass marble 1.003 in diameter through the hole in the plate, how much must the temperature of the system be raised? (Assume the plate and the marble are always at the same temperature.)
The skier's mass is 59.0 kg, and the coefficient of kinetic friction between the skis and the snow is 0.100. Find out the magnitude of the force that the tow bar exerts on the skier.
An open-pit coal mine consumes 71hectares of land, down to a depth of 23m, each year. What volume of earth, in cubic kilometres, is separate in this time.
What is the acceleration of a 747 jumbo jet, mass 31,000 kg, in takeoff when the thrust for each of its four engines is 28,000 N?
In order to view the craters of the Moon, you construct a refracting telescope from a lens with focal length 90.7 cm as its objective and a 11.5-cm focal length lens as its eyepiece
Two identical aluminium objects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at the higher potential.
A loudspeaker receives 8.0 W of power from an audio amplifier, and turns 3 % of that power into sound waves. What is the decibel intensity at this distance
A 47 g golf ball is driven from the tee with an initial speed of 50.0 m/s and rises to a height of 24.8 m.
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