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Two rocks are thrown off the edge of a cliff that is 15.0 m above the ground. The first rock is thrown upward, at a velocity of +12.0 m/s. The second is thrown downward, at a velocity of ?12.0 m/s. Ignore air resistance. Determine
(a) how long it takes the first rock to hit the ground and
(b) at what velocity it hits.
What is the little distance between the speakers for which the interference of the sound waves is destructive.
Two 9.00 µC charged particles are located on the x axis. One is at x = 1.00 m, and the other is at x = -1.00 m, Determine the electric field on the y axis at y = 0.500 m
What is the magnitude of the net torque exerted on the branch by the children? Suppose that the axis is located where the branch joins the tree trunk and is perpendicular to the plane formed by the branch and the trunk.
The electric charge of a proton is distributed over a volume. The distribution of the proton can be approximated by the exponential equation rho = e/(8*pi*b)exp(-r/b). r is the radial position inside the proton and b equals .23 * 10^-15 m. Find th..
A 20 000 N truck is acted upon by the force that decreases its speed from 10.00 m/s to 5.0 m/s in 5.0 sec. What is the magnitude of force.
An 8.70-cm-diameter, 340g solid sphere is released from rest at the top of a 1.50-m-long, 18.0 degree incline. What fraction of its kinetic energy is rotational
One of the weapons considered for the "Star Wars" antimissile system is a laser that could destroy ballistic missiles. What laser beam intensity will produce such a field
Calculate the magnitude of the gravitational force exerted on a 611-kg satellite that is a distance of two earth radii from the center of the earth, What is the magnitude of the earth's acceleration
In a very silly game at the coffee shop, you see who can slide the coffee cup closest to the edge of the table without sending it over the edge. How far from the edge of the table does the cup land
What is mechanical energy
A long, straight wire runs along the axis of the solenoid, carrying a current of 15. Find out the magnitude of the net magnetic field a radial distance of 0.80 from the straight wire.
A beaker with a capacity of exactly 100 mLcontains 99.5mL of ethanol at 26?C. at what temperature will it overflow
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