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A tin can charcoal burner A large tin can at least 10 cm in diameter should be use. About 4 cm from the bottom mark off triangular windows around the can, as shown in the diagr
The loudness of sound depends on: Amplitude of vibration. Area of vibrating body. Distance from the sounding body. Density of the medium.
How can we calculate the rate of effusion of nitrogen gas from a cylinder. and how much time it will take??
A bat emits a sound whose frequency is 142 kHz. The speed of sound in air at 20.0°C is 343 m/s. However, the air temperature is 35°C, so the speed of sound is not 343 m/s. Find the
1.5 kg of Oxygen (N 2 ) and 0.15 kg of Helium (He 2 ) are separated by a partition in a vessel. The Nitrogen is at 5 bar and 90 o C and the Helium at 1 bar and 20 o C. The part
A 7.25-g bullet is fired from a gun. The muzzle velocity of the bullet is 223 m/s. Suppose that the bullet accelerates at a constant rate along the barrel of the gun before it
Describe Kirchoffs Current Law? Ans. It defines " the current flowing toward a point in a circuit have to be equal to the current flowing away from that point. I = I 1 + I
A football player kicks a field goal from a distance of 45 m from the goalpost. The football is launched at a 35° angle above the horizontal. What initial velocity is neede
define like and unlike parallel forces with examples
you were to walk briefly in space without a spacesuit while far from the Sun (as an astronaut does in the movie 2001 ), you would feel the cold of space --while you radiated energ
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