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A clock has an aluminum pendulum with a period of 1.000 s at 20.7 °C. Suppose the clock is moved to a location where the average temperature is 32.2 °C. (The linear expansion coefficient for aluminum is 2.20 10-5 °C?1.) (a) Determine the new period of the clock's pendulum. (Enter your answer to six siginficant figures.) (b) Determine how much time the clock will lose or gain in 3 weeks. The clock will over 3 weeks.
A large bell is hung from a wooden beam so it can swing back and forth with negligible friction. What should be the length L of the clapper rod for the bell to ring silently-that is, for the period of oscillation for the bell to equal that for the ..
A truck travels 1690 m uphill along a road that makes a constant angle of 4.82? with the horizontal. Find the magnitude of the truck's vertical component of displacement
One particle has a mass of 4.59 x 10-3 kg and a charge of +7.03 ?C. A second particle has a mass of 8.88 x 10-3 kg and the same charge. Find the initial separation between the particles
A large electromagnet draws a current of 261.00 A at 311.00 V. The coils of the electromagnet are cooled by a flow of water passing over them. what is the minimum rate of flow of water through the electromagnet
Two point charges of equal magnitude are 6.1 cm apart. At the midpoint of the line connecting them, their combined electric field has a magnitude of 37 N/C
At a temperature of 5800, hydrogen atoms in the solar atmosphere have typical random speeds of about 12. Assume that spectral-line broadening is simply the result of atoms moving toward us or away from us at this random speed, estimates thermal width..
A 62.3-kg skateboarder starts out with a speed of 2.22 m/s. He does 108 J of work on himself by pushing with his feet against the ground. How much has the vertical height of the skater changed
A 1000kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 16s , What is the rocket's speed as it passes through a cloud 4200m above the ground
An ideal gas of p=1000 hPa, V=1 m3, T=20 C undergoes the following successive changes: (1) it is warmed under constant pressure until its volume double, (2) it is warmed under constant volume until its pressure doubles, and (3) it expands isothermall..
It is desired to construct a solenoid that will have a resistance of 6.00 (at 20°C) and produce a magnetic field of 4.00 10-2 T at its center when it carries a current of 4.80 A. estimate the length the solenoid should have
An ice skater slides at a speed of 25 km/h on a level ice track. At this point she allows herself to coast to a complete stop
The electric potential at a position located a distance of 19.8 mm from a positive point charge of 7.80×10-9C, Calculate the value of the second charge
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