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For this question, take the specific heat of liquid water to be 4190 J/kg⋅K, the specific heat of ice to be 2100 J/kg⋅K, and the heat of fusion for water to be 3.34×105 J/kg.
An insulated beaker with negligible mass contains liquid water with a mass of 0.335 kg and a temperature of 69.1oC .
How much ice at a temperature of -18.3oC must be dropped into the water so that the final temperature of the system will be 29.0oC?
Interactive LearningWare 26.2 offers a review of the concepts that play roles in this problem. What is the height of the final image
Two forces act on a 3.4 kg box. One of the forces is known to be F= 5.5 N. The acceleration is measured to be A= (-1.9i - 2.7j ) m/s2. Find the second force as a magnitude and direction
A spherical water drop 3.7 ?m in diameter is suspended in calm air due to a downward-directed atmospheric electric field of magnitude E = 12100 N/C. find the magnitude of the gravitational force on the drop
The centers of a 14kg lead ball and a 50g lead ball are separated by 11cm What gravitational force does each exert on the other?. What is the ratio of this gravitational force to the weight of the 50g ball?
A simple pendulum with mass m = 1.4 kilogram and length L = 2.39 meter hangs from the ceiling. Determine the magnitude of the force on the pendulum bob perpendicular to the string at t=0
Under certain conditions in certain devices, the behavior of the current in a conductor can be represented as a function of time by the equation I(t) = Ioe^(-t/tau). Determine the amount of charge passing through a fixed point
a vector force with components 125 acts at the point 321a find the vector torque about the origin due to this forceb
A car travelling at 16 m/s runs out of gas while travelling up a 21 degree slope. How far up the hill would it coast before starting to roll back down.
If a measurement of an electron's energy takes 9.6 ns (9.6 × 10?9 s), what is the minimum possible uncertainty in the energy
A sphere of radius R has charge q. What is the infinitesimal increase in electric potential energy dU if an infinitesimal amount of charge dq is brought from infinity to the surface of the sphere? Express your answer in terms of the variables R, q, d..
A 2.4 gram penny is on a turntable. It starts from rest at a radius of 0.14 meters and the turntable speeds up until the penny flies off with a tangential speed of .88 m/s. What coefficient of static friction (to three decimal places) exists betwe..
Find the size of the net force produced by a 7 N and an 12 N force in each of the following arrangements. (a) The forces act in the same direction. N= (b) The forces act in opposite directions. N= (c) The forces act at right angles to each other. ..
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