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A conventional mercury thermometer consists of a thin glass capillary filled with mercury. The capillary is enclosed in a protective glass cylinder. These mercury thermometer can be quite sensitive and very precise. When such a thermometer is placed into a pot of hot water one observes that the temperature reading first drops for a moment before it gradually rises. Explain this phenomenon
Two wheels have the same mass and radius of 4.8 kg and 0.54 m, respectively. One has (a) the shape of a hoop and the other (b) the shape of a solid disk. The wheels start from rest and have a constant angular acceleration with respect to a rotational..
The length of the mercury column at the ice point and steam point are 5.0 cm and 40.0cm respectively. What is the temperature of the liquid
A 2200 kg sport utility vehicle travelling at 86 km/h can be stopped in 0.15 s if it hits a concrete wall. Presume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of car both before and after the crash, and..
A 13.0 mu F capacitor is connected to a power supply that keeps a constant potential difference of 26.0 V across the plates. By how much did the energy change during the insertion
An electric field E with an average magnitude of about 150 N/C points downward in the atmosphere near Earth's surface. What charge (both sign and magnitude) must be used
What is the energy density. Find out the lowest frequency that permits standing waves in both strings with a node at the junction. The standing wave pattern in each string may have a different number of loops.
A 106 kg object moves in a horizontal straight line with an initial speed of 58 m/s. If it is stopped along that line with a deceleration of 2.00 m/s2 what magnitude of force is required
Given the capacitors, C1=2muF, C2=1.5 muF and C3=3muF, what arrangement of parallel and series connections with a 12-V battery will give the min voltage drop across the 2muF capacitor? What is the min voltage drop?
A physics professor demonstrates the Doppler effect by tying a 580HZ sound generator to a 1.0m--long rope and whirling it around her head in a horizontal circle at 120rpm . What is the highest frequency heard by a student in the classroom? What is th..
An east-west electric power line carries a 500-A{\rm A} current toward the east. Determine the direction of this magnetic field at Earth's surface directly under the wire
A long line carrying a uniform linear charge density +56.0 µC/m runs parallel to and 10 cm from the surface of a large, Find the location of all points on a line perpendicular to the sheet and the charged line
A 30-Kg coconut falls from a coconut tree a distance of 30 meters. how far into the sand does the coconut sink
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