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a) Will a grandfather clock, accurate at 20 degrees C, run fast or slow on a hot day (30 degrees C)? Explain. Assume that the clock utilizes a pendulum supported on a long, thin brass rod.
b) When a gas is rapidly compressed (say, by pushing down a piston) its temperature increase, Describe. When a gas expands against a piston, it cools. Describe these changes in temperature using the kinetic theory, in particular nothing what occurs to the momentum of molecules when they strike the moving piston.
c) A flat bi-metallic strip consists of alluminium riveted to a strip of iron. When heated, the strip will bend. Which metal will be on the outside of the curve? Why?
In the example a sharp metallic tip is held just above a conducting surface with a voltage between the tip and the surface with a current flowing. How would the current vary with the separation between tip and sample (just the functional variation..
A 60kg block slides along the top of a 100kg block with an acceleration of 2.0m/s^2 when a horizontal force of 350N is applied. Find the coefficient of kinetic friction between the blocks
A parallel-plate air-filled capacitor having area 44 cm2 and plate spacing 5.0 millimeter is charged to a potential difference of 900 V. Evaluate the energy density between the plates
A deep-space probe moves away from Earth by a speed of0.80c. An antenna on the probe requires 3.0 s, in probe time, to rotate during 1.0 rev. How much time is required for 1.0 rev according to an observer on Earth?
On a workday, the average decibel level of a busy street is79dB with 100 cars passing a given point every minute. what is the decibel level of the street
A transformer with 410 turns in its primary coil and 34 turns in its secondary coil is designed to deliver an average power of 1300 W with a maximum voltage of 60 V
The speed of a 135-gram hockey puck decreases from 37.0 m/s to 30m/s while coasting a distance of 12.5 meters. Find the force of friction between the ice and the puck
A 10 cm high object is situated 25 cm in front of a convex mirror that has a radius of curvature of 1.00 102 cm.
A ray of light is incident at an angle of 30 deg. to the normal on an air glass interface. find the angle the refracted ray makes to normal
A crude model of the human vocal tract treats it as a pipe closed at one end. Find the effective length of the vocal tract in a person whose fundamental tone is 550Hz . Sound speed in air at body temperature is 354 m/s.
Your are sitting in your car, which is standing at the side of the road with the engine idling. After what distance will you catch up with your classmate
A +6.4 µC charge is placed at the origin and a -3.3 µC charge is placed at x = 25 cm. At what coordinates can a third charge be placed
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