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A clock has an aluminum pendulum with a period of 1.000 s at 22.1 °C. Suppose the clock is moved to a location where the average temperature is 32.7 °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.)
If a ball has a net positive charge of 57 ?C, how many electrons must be added to make the ball neutral
How much time is the stone in the air
The left face of a biconvex lens has a radius of curvature of magnitude10.4cm, and the right face has a radius of curvature of magnitude20.0cm. The index of refraction of the glass is1.47. Calculate the focal length of the lens for light incident f..
A 0,52 um thick soap film (n=1,41) in air is illuminated with white light in a direction perpendicular to the film. For what wavelength in the range 350-700 nm is there : a) fully constructive interferences b) fully destructive interference in the re..
A child is trying to throw a ball over a fence. She gives the ball an initial speed of 8.0 m/s at an angle of 40° above the horizontal. How far is the child from the fence
Two divers jump from a 5-m platform. One jumps upward at 1.90m/s , and the second steps off the platform as the first passes it on the way down. By how much does the first diver hit the water first (seconds)
A bottle of saline solution (with a specific gravity of 1.02) is attached to a 1.2 m long piece of tubing with a 1.0 cm inner diameter. If the tubing is held vertically, filled with saline, and clamped at the bottom, (
An initially uncharged micro-farad capacitor and 12 Ohm resistor are connected in series with a 5V battery at t=0/ After what time is the capacitor fully charged
A wire loop with an area of 3.0×10?2 is in a magnetic field of 0.23 directed at a angle 30 to the plane of the loop. If the field drops to zero in 47 , what is the average induced emf in the loop?
Capacitors C1 = 6.03 uF and C2 = 2.45 uF are charged as a parallel combination across a 298 V battery, Calculate the resulting charge on capacitor C2
q1. a cube of ice is taken from the freezer at -9.4degc and placed in a 94 g aluminium calorimeter filled with 315 g of
It is desired to construct a solenoid that will have a resistance of5.20(at 20°C) and produce a magnetic field of 4.00multiplied by10-2T at its center when it carries a current of3.40A. determine the length the solenoid should have
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