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A sample of an unknown material appears to weigh 260 N in air and 200 N when immersed in alcohol of specific gravity 0.700.
(a) Evaluate what is the volume of the material?
m3
(b) Evaluate what is the density of the material?
kg/m3
Find out the time that the arrow spends in the air.
A uniform electrical field is established by connecting the plates of a parallel-plate capacitor to a 11V battery. The plates of the capacitor are separated a distance 3.50 cm. What is the capacitance of this parallel plate capacitor
Two skaters, a man and a woman, are standing on ice. Neglect anyfriction between the skate blades and the ice. The mass of the manis 95 kg, and the mass of the woman is 63 kg. The woman pushes onthe man with a force of 55 N due east.
An ideal gas at STP, originally occupying a volume of 0.115 m^3, expands isothermally until its pressure falls to 0.85 atm. How much heat flows into the gas
Consider a spring handing vertically from a ceiling, attached to a mass m of 2 kg. The spring constant, k, is 30 N/m. How far does the spring travel downwards before it reverses direction
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.1L in the warm store at 72deg F. By how much has the volume decreased
A car moves with an initial velocity of 5m/s and is subjected to a deceleration of 3m/s2 for 2 seconds. Calculate the distance the car traveled
An alpha particle (a helium nucleus) is traveling along the positive x-axis at 1350 m/s, How far does the particle travel before hitting the tube wall
Two conducting wires of the same material are to have the same resistance. One wire is 17 m long and 0.39 mm in diameter. If the other wire is 0.31 mm in diameter, how long should it be?
A 5.0-g bullet traveling horizontally at an unknown speed hits and embeds itself in a 0.195-kg block resting on a frictionless table, Determine the initial speed of the bullet
A string, fixed at both ends,vibrates at a frequency of 12 Hz with a standing transverse wavepattern containing 3 loops. What frequency is needed
Find out the coefficient of sliding friction
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