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a stone is thrown horizontally at a speed of 5.0m/s from thetop of a cliff that is 78.4m high, how long dies it take the stone to reach the bottom of the cliff?
The magnetic field due to a 2-A current flowing in a long, straight wire is 8 ?T at a point P, a certain distance away from the wire. How far is this point from the center of the wire
In a college homecoming competition, eighteen students lift a sports car. Though holding the car off the ground, each student exerts an upward force of 390 N. What is the mass of the car in kilograms? What is its weight in pounds.
A bottle rocket is launched at an angle of 30 degrees from the ground with a speed of 200m/s. What is the range of the rocket if it lands on level ground
A 47 kg person, standing 0.980 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 3.10 m/s relative to the ground. Find resulting angular speed (in rad/s) of the disk.
In an experiment to study magnetic induction , in the North Pole of a permanent magnet is moved left to right toward a coil having 20 turns at a constant speed of 20 cm/s. find Is the voltage positive or negative
an astronomical unit au is the average distance of earth from the sun approximately 1.50 times 108 km. the speed of
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 26.5 m/s. find the airplane\'s acceleration
A 3.07 kg particle has a velocity of (3.10 i hat - 4.04 j hat) m/s. Find the magnitude and direction of its momentum
Find the photon energies for the three longest wavelengths in the Balmer series for the hydrogen atom. (Enter your answers from smallest to largest.) Calculate the three wavelengths.
assume that the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 235 mL of coffee from 25.0 ^circ rm C to 62.0 ^circ rm C.
Water is pumped into a storage tank from a well delivering 15.0 gallons of water in 34.0 seconds through a pipe of 1.00 in.2 cross-sectional area.
What is the gauge pressure of ocean water at a depth of 73.6 m? The density of ocean water is 1035 kg/m3
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