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The amount of carbon-14 (14 6 C) in a wooden artifact is measured to be 3.12 percent the amount in a fresh sample of wood from the same region. The half-life of carbon-14 is 5730 years. Assuming the same amount of carbon-14 was initially present in the artifact, how do I determine the age of the artifact. Answer in units of years.
A satellite is in a circular orbit about the earth (ME = 5.98 × 1024 kg). The period of the satellite is 1.20 × 104 s. Illustrate what is the speed at which the satellite travels?
When a 700? resistor is connected across an AC power supply, the resistor dissipates energy at a rate of 15.0W. Find the maximum current through the resistor
A light spring with a force constant of 13N/m is connected to a wall and a 1.2-kg toy bulldozer. When the electric motor in the bulldozer is turned on, What is the numerical value of this coefficient of friction
A 1130kg car and 4020kg truck undergo a perfectly inelastic collision. Find the velocity of the wreckage immediately after the collision
On another planet, Jim throws a ball directly up into the air. The velocity of this ball is a linear function of t. He finds that the velocity of the ball at 1 second is 44 meters/second. At 4 seconds, it is -49 meters/second. Find v(t), the veloc..
A coil is wrapped by 200 turns of wire on a square frame with sides 18cm. A uniform magnetic field is applied vertical to the plane of the coil and into the page. If the field changes uniformly from 0.50T to 0 in 8.0 seconds, discover the average val..
A square metal plate of edge length 12 cm and negligible thickness has a total charge of 7.2 x 10-6 C. Estimate the magnitude E of the electric field just off the center of the plate (at, say, a distance of 0.39 mm from the center) by assuming tha..
A submarine submerges to a depth of 144 meters. Compute the pressure on the submarine. State your answer in both Pascal and atmospheres.
Check the most recent Statistical Abstract of the United States at www .census.gov and determine how many miles per year Americans actually drive.
A rock is dropped from a cliff approximately how long does it take to fall 45m if the acceleration due to gravity is 9.8m/sec2
Three people pull simultaneously on a stubborn donkey. Jack pulls directly ahead of the donkey with a force of 81.7 N, Find the magnitude of the net force the people exert on the donkey
A crate is pushed along a flat surface at constant velocity by a force of 68 N. The coefficient of kinetic friction is .30. What is the mass of the crate
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