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after enough time has passed to allow the ice cube and water to come to equilibium,
a) what is the tempreture of the water? (answer should be T = 7 celsius)
b) if a second ice cube is added what will the tempreture be?
q1. a chair of weight 125 n lies atop a horizontal floor the floor is not frictionless. you push on the chair with a
A potential difference of 4.75 kV is established between parallel plates in air. what is the minimum separation the plates can have without ionizing the air
question1consider a simple pendulum consisting of a point mass m attached to the end of a mass less rod. the pendulum
A fox fleeing from a hunter encounters a 0.690 m tall fence and attempts to jump it. By how much does the fox clear the fence
What is the velocity of each ball. while both pipes vibrate at their fundamental frequencies, a beat frequency of 15 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 343 m/s.
A 75-kg canoeist stands in the middle of her 20-kg canoe. The canoe is 3.0 m long, Calculate the distance from the canoeist to shore
question1the press box at a baseball park is 36.0 ft above the ground. a reporter in the press box looks at an angle of
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.20×10^ 6N , one at an angle 19.0 ? west of north, What is the total work done by the two tugboats on the supertanker
A 900kg car strikes a huge spring at a speed of 24m/s(Figure 1) , compressing the spring 5.5m. compute the spring stiffness constant of the spring
A storage tank at STP contains 18.5kg of butane gas, C4H10, Determine the number of moles of butane gas
An object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 m/s. Estimate the velocity of the third piece? Suppose each piece has a mass of 2 kg.
Calculate the efficiency of a reversible engine that operates between the temperatures 620.0° C and 345.0° C
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