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Assume that 10 g of steam is added to 100 g of water initially at 19°C. The water is inside an aluminum cup of mass 35 g. The cup is inside a perfectly insulating calorimetric container that prevents heat flow from the outside environment. Find the final temperature of the water after equilibrium is reached.
A battery with an emf of 12.0 V shows a terminal voltage of 11.4V when operating in a circuit with two lightbulbs, What is the battery's internal resistance
Two objects of masses m and 3.00 m are moving towards each other along the x-axis with the same initial speed of v. The object with mass m is travelling to the left.
A ball of mass 20 kg moves with a velocity of 2 m/s along the +x axis (call it ball A). It collides with a ball of mass 12 kg which is initially at rest (call it B), What is the final velocity of ball B
A 270 ball and a 520 ball are linked by a 50.0-cm-long massless, rigid rod. The structure rotates about its center of mass at 120 rpm. What is its rotational kinetic energy.
A mass m orbits around a planet of mass M in a parabolic orbit of the form y = x^2/(4L), which has focal length L. Find the angular momentum in 3 different ways: a) Find the speed at closet approach.
In a television set the power needed to operate the picture tube comes from the secondary of a transformer. Find the current in the primary
Compute the magnitude of the average acceleration
A 0.34 kg iron horseshoe that is initially at 616 ?C is dropped into a bucket containing 25 kg of water at 28 ?C. What is the final equilibrium temperature? Avoid any energy transfer to or from the surroundings and assume the specific heat of iron is..
A fission-based nuclear bomb (such as those used in World War II) uses the same nuclear reactions, What is the average power Pavg of such a nuclear bomb
Compute magnitude of the average emf
The centripital force of 45N is required to resolve a stone of mass 100g along a circular path of radius 50cm. Find the constant speed of the stone
A starship voyages to a distant planet 10 ly away. The explorers stay 4.00yr , return at the same speed, What is the speed of the starship
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