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Question: A sprinter starts from rest and accelerates to her maximum speed of 9.5 m/s in a distance of 9.3 m.
(a) What was her acceleration, if you assume it to be constant?
A 2.41 kg block and a 4.82 kg block are initially at rest on a frictionless, horizontal surface, with a compressed spring of negligible mass between them. How much does the kinetic energy of the system increase
a Two vehicles travelling on a road in the same direction collide. Vehicle 1 has a mass 1200 kg and is travelling at 30m/s. Determine the change in momentum of each vehicle
Two identical +9.5 uC point charges are initially 3.5cm apart from each other. If they are released at the same instant from rest, how fast will each be moving as they are very far away from each other? Assume they have identical masses of 1 mg.
In constructing a large mobile, an artist hangs an aluminum sphere of mass 6.0 kg from a vertical steel wire 0.50 m long, compute the tensile Strain and elongation
A 0.14-kg pinecone falls 16m on the ground, where it lands with aspeed of 13 m/s. What speed would the pinecone have landed if there had been noair resistance
A cylinder contains a piston on each side of which is one kilomole of an ideal gas. The walls of the cylinder are diathermal, compute the change in the Helmholtz potential
An electron passes through a point 3.91 cm from a long straight wire as it moves at 33.7% of the speed of light perpendicularly toward the wire. The wire carries a current of 11.3 A. Find the magnitude of the electron\'s acceleration at that point.
A 4.0 ohm resistor is connected in parallel with a 12 ohm resistor and both of these are connected to a DC power supply with voltage V. what is the current through the 4.0 ohm resistor
A model thermodynamic system consists of N particles whose allowed energies are integer multiples of e: 0, e, 2e, 3e, 4e, Calculate the canonical partition function for the system
A 21kg solid door is 220 cm tall, 92cm wide, What is the door's moment of inertia for rotation about a vertical axis inside the door, 13cm from one edge
Define potential difference. What is the difference between electric potential and electric potential energy? What is the unit for potential difference
What is the temperature at point B?What is the work done BY the gas in the transition A to B? What is the efficiency of a Carnot cycle running between the lowest and highest temperature of the cycle above
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