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A bomb at rest at the origin of an xy-coordinate system explodes into three pieces. Just after the explosion, one piece, of mass m, moves with a velocity of 13 m/s in the negative x-direction, and a second piece, also of mass m, moves with a velocity of 23 m/s in the negative y-direction. The third piece has mass 3m. Just after the explosion, what is the magnitude of the velocity of the third piece?Just after the explosion, in what direction is the third piece moving? (Give your answer as an angle measured counterclockwise from the positive x-axis.)
Two point charges, q1 = -12.5 ?C and and q2 = +18.7 ?C, are placed at two of the corners of a right triangle with a = 23.5 cm, Find the magnitude of the electric field at the third corner of the triangle
A person takes in a breath of -2 degrees C air and holds it until it warms to 37.5 degrees C. Determine the work done by the air on the lungs
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
A 6.00 bullet is fired horizontally into a 1.30wooden block resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.200. What was the initial speed of the bullet
On a workday the average decibel level of a busy street is 69 dB, with 102 cars passing a given point every minute. If the number of cars is condensed to 39 cars every minute on a weekend, what is the decibel level of street.
A diffraction grating produces a first order bright fringe that is 0.226 m away from the central bright fringe on a flat screen which is 0.675 m away. What is the wavelength of the light shining on the grating
State Faraday's Law. If you use an equation define each term in the equation. what is the peak Emf induced in the coil
A 100 pF capacitor is charged to a potential difference of 70 V, and the charging battery is disconnected. what is the capacitance of this second capacitor
A solid disk of mass M= 2.0 kg and radius R= 0.25 m rotates at an angular velocity of 0.50 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
What is the kinetic energy
A 200 km long high-voltage transmission line 2 cm in diameter carries a steady current of 1050 A. If the conductor is copper with a free charge density of 8.8 x10^28 electrons per cubic meter, how various years does it take one electron to travel ..
An object is held up by two ropes. rope 1 makes an angle of 65 degrees above horizontal and the tension in it is T1 = 26N. rope 2 makes an angle of 32 degrees above horizontal and the object is in equilibrium. what is the tension in rope 2 (T2) an..
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