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A 9.0 x 10 -2 ice cube at 0.0C is dropped into a Styrofoam cup holding 0.35 kg of water at 12C.
a) Find the final temperature of the system. Assume the cup and the surroundings can be ignored.
b) Find the amount of ice (if any) remaining.
c) Find the initial temperature of the water that would be enough to just barely melt all of the ice.
Two particles with charges +6e and -2e are initially very far apart (effectively an infinite distance apart). They are then fixed at positions that are 4.92 x 10-10 m apart. What is EPEfinal - EPEinitial, which is the change in the electric potent..
If 45 g is suspended at 25 degree, 105 g is suspended at 85 degree, and 65 g is suspended at 330 degree, what mass must be suspended at what angle to balance these three forces?
At t = 0, an automobile travelling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.70 m until, at t = 1.60s, it is travelling east. The car does not alter its speed all through the turn.
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this?
A small, 2.10 g plastic ball is suspended by a 20.0 cm long string in a uniform electric field E = 5.60×103 i N/C, If the ball is in equilibrium when the string makes a 15.0o angle with the vertical
Find out the radial acceleration of the ball during its circular motion.
Assume the car is moving at 72 km/hr when the brake pedal is applied. Assume that the radius of the wheel is 15 cm. What is the maximum power.
A 0.570 kg ball is dropped from rest at a point 1.50 m above the floor. The ball rebounds straight upward to a height of 0.800 m. Illustrate what are the magnitude and direction of the impulse of the net force applied to the ball during the collis..
Expalin by how much does the potential energy of a 18.0-kg child increase when the child climbs a normal staircase to the second floor?
Considered frequency and draw the nodal maps
Illustrate what is the difference between a departmental accounting system and a responsibility accounting system? Are the reports of departmental net income and the departmental contribution to overhead useful in assessing a department manager's ..
The jet accelerates uniformly, and during that time, the pendulum oscillates about the equilibrium position shown by the solid line, with D = 0.370 m. find the magnitude of the plane's acceleration.
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