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Q1. A 4.00 X 100 g glass coffee cup is 22.0 C at room temperature. It is next plunged into hot dishwater at the temperature of 80.0 C. If the temperature of the cup reaches that of the dishwater, how much heat does the cup absorb? Suppose that the mass of the dishwater is large as much as necessary so that its temperature does not change appreciably.
Q2. The motion sensor used in this experiment has the minimum range of 0.16m and a maximum range of 11.0m. Explain in theoretical terms, how you could have increased or lowered the range of the distance covered by the motion sensor.
Potential energy of a not obeing Hooke's law spring is given by the equation U(x)=5.00(J/m)x - 2.00(J/m3)x3, What is the expression for the restoring force of the spring
Approximation the force a person should exert on a string attached to a 0.130 kg ball to make the ball revolve in a horizontal circle of radius 0.600 m.
Consider an LC circuit in which L = 470 mH and C = 0.102 µF. What is the resonance frequency and If a resistance of 1.30 k? is introduced into this circuit, what is the frequency of the damped oscillations
A 116 g insulated aluminum cup at 15°C is filled with 140 g of water at 50°C. After a few minutes, equilibrium is reached. Estimate the total change in entropy
You have a spring attached to the bottom of a container. The spring is aligned vertically. The container is filled with water (density 1.0 x 103 kg/m3). How much does the block compress the spring
The electric field strength is 1.90×104N/C inside a parallel-plate capacitor with a 1.10mm spacing. What is the electron's speed when it reaches the positive plate
three capacitor , with capacitance of c1=4.0mf,c2=3.0mf ,c3=2.0mf , are connected to a 24v source (c1 is in series with c2 but c2 and c3 are in parallel, what is the equivalent capacitance of the three capacitors
The loaded cab of an elevator has a mass of 1.7 x 103 kg and moves 239 m up the shaft in 19 s at constant speed. At what average rate does the force from the cable do work on the cab.
A 1100 kg car increases it speed from 40 km/hr to 60 km/hr in 5 seconds. What is the resultant work done on the car
A 1.00-kg glider attached to a spring with a force constant 9.0 N/m oscillates on a frictionless, horizontal air track. Find the period of the glider's motion
A 720g , 42-cm-long metal rod is free to rotate about a frictionless axle at one end. What is the rod's angular velocity immediately after the blow
A horizontal force of 250 N is applied to a stationary wooden box in one direction, What additional force is needed for the box to remain stationary
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