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A sample of an unknown material appears to weigh 280 N in air and 175 N when immersed in alcohol of specific gravity 0.700.
(a) What is the volume of the material?
A cubic box of volume4.2multiplied by10-2m3is filled with air at atmospheric pressure at 20°C. What is the net force on each side of the box
a piston with mass m 2.0 kg in a car engine is in vertical simple harmonic motion with amplitude a 5.0 cm. if the
The tire on a bicycle is filled with air to a gauge pressure of 691 kPa at 20?C. What is the gauge pressure in the tire after a ride on a hot day when the tire air temperature is 48?C?
In a photoelectric effect experiment, a metal sample is illuminated by 10.0 mW of ultraviolet light of wavelength 240 nm. What is the longest wavelength of light that can knock electrons out of this metal
A charge of +q is located atthe origin, while an identical charge is located on the xaxis at x = 0.49 m. A thirdcharge of +4q is located on the x axis atsuch a place that the net electrostatic force on the charge at theorigin triples, its directio..
The voltage across a resistor is equal to the product of the current through the resistor and the resistance of the resistor, What is the potential difference of the battery
Sheena can row a boat at 2.95 mi/h in still water. She needs to cross a river that is 1.17 mi wide with a current flowing at 1.79 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head 60.0° upstream.
Two moles of an ideal monoatomic gas undergo a cyclic process starting from state A at a vol. of 1L and a pressure of 2 atm. Find the total work done by the gas in one cycle
a person rides on a 12-m-diameter ferris wheel that rotates at the constant rate of 6.6 rpm. calculate the magnitude
A 150 pF capacitor is charged to a potential difference of 64 V, and the charging battery is disconnected. The capacitor is then connected in parallel with a second (initially uncharged) capacitor. If the measured potential difference across the firs..
The springs of a 1200 kg car compress 6.5 mm when its 68 kg driver gets into the driver's seat. If the car goes over a bump, what will be the frequency of vibrations?
What would be the nature and height of the image?
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