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Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.5 cm in diameter and carries a current of 48 A. If the bird's feet are 4.4 cm apart, calculate the potential difference between its feet. (The resistivity of the wire is 1.7 x10-8 ? · m)
The label on a 12.0-V truck battery states that it is rated at 219.0 A·h (ampere-hours), How much electric energy can the battery supply and How much charge in coulombs can be pumped by the battery
A ship sets out to sail to a point 197 km due north. An unexpected storm blows the ship to a point 107 km due east of its starting point. In what direction must it now sail to reach its original destination.
The record distance in the sport of throwing cowpats is 81.1 m. This record toss was set by Steve Urner of the United States in 1981. Determine the total time the projectile was in fligh
Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string? (b) What is the wave speed when the suspended mass is 1.7 kg?
A 2345 kg car plans to round an unbanked corner with a radius of 34m at a speed of 45mph. What is the maximum speed at which the car could make the turn if the coefficient of static friction is 1.5
A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 3.00 m/s, What is her highest point above the board
Hail comes straight down at a mass rate of m/%u0394t = 0.030 kg/s and an initial velocity of v0 = -10 m/s, calculate the force exerted by the hail on the roof
A stone is dropped from the roof of a building; 1.90s after that, a second stone is thrown straight down with an initial speed of 25.0m/s , How long did it take the first stone to reach the ground
A person pushes the shopping cart with a force of 100 N acting down at 45 degrees. Of the cart travelled at a constant speed of 1.00 meters per second what is the value of combined retarding force acting horizontally on the cart due to friction an..
A hydrogen atom is in its n = 8 excited state. Determine, according to quantum mechanics, find the total energy (in eV) of the atom
When additional mass is added to the piston, the height of the piston decreases to 16.4 cm. Find out the new pressure applied by the piston.
6 kg of a substance undergoes a process from 1.00 MPa, 0.50 m^3 to 500 kPa, Find the work in kJ for the path given below and Find the heat transfer for the process in Btu. PV^1.6 = constant
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