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A bar of lead (bar A) is in thermal contact with a bar of silver (bar B) of the same length and area. One end of the compound bar is maintained at Th = 77.0°C while the opposite end is at 30.0°C. Find the temperature at the junction when the energy flow reaches a steady state.
A hiker's trip consists of three segments. Path A is 8km long heading 65 degrees north of east. Path B is 7km long in a direction due east. Path C is 4.0 km long heading 313 degrees counter clockwise from east.
q1. a 0.50-kg object is attached to an ideal massless spring of spring constant 20 nm along a horizontal frictionless
A boulder has a volume of 1 m3 and a mass of 5000 kg. what will be the effective mass of the boulder
a ramp consisting of a large piece of cardboard poster board or similar thin and smooth materiala toy car such as a
A leaf of area 36cm2 and mass 4.8×10?4kg directly faces the Sun on a clear day. The leaf has an emissivity of 0.85 and a specific heat of 0.80 kcal/kg?K. Estimate the rate of rise of the leaf's temperature
A shopper walks from the door of the mall to her car 250m down the line of cars, and then turns 90 degrees to the right and walks an additional 60 meters. What is the magnitude of the displacement of her car from mall door.
The starter motor of a car engine draws a current of 127 A from the battery. How much charge passes trough the starter motor
The force diagram shown describes the forces acting on the back while bending at the waist in static equilibrium the trunk makes a 60 degree angle with the vertical. hat is the torque equation about point A
A charge of -0.50 µC is situated in an electric field of magnitude 9.0 × 104 N/C, directed horizontally to the right. Find the magnitude and direction of the force on it
Assume, instead, that the observer had been moving away from Earth with a speed of 0.80c. How much time would observer have measured for the car to be filled in this case.
35MW of power at 45kV (rms) arrives at a town from a generator via 5.0? transmission lines. Calculate the emf at the generator end of the lines
If you move towards a pipe at a speed of 3.3m/s, what frequency will you hear from this organ pipe? speed of sound is 330m/s
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