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A bomb at rest explodes, breaking into three pieces. Two of the pieces have equal mass and fly off at 60° to one another with the speed of 100 m/s. The third piece has three times the mass of each other piece. What are the magnitude and the direction of the third piece immediately after the explosion?
A 3000 pound car crashes into a concrete jersey barrier moving 3 sections (totaling 12,000 pounds) laterally 24 inches. How fast was the car going on impact.
Calculate the mass of Earth from the period of the moon, T = 27.3 d; its mean orbital radius, rm = 3.84 108 m; and the known value of G
A 120. mH inductor is in series with a 20. O resistor and a variable capacitor (0.110 µF to 0.400 µF). what current flows at resonance
A solenoid 70 . 8 cm long has 640 turns and a radius of 2 . 34 cm. If it carries a current of 2 . 03 A, find the magnetic field along the axis at its center
q1. a 75-kg person sits on a 3.7-kg chair. each leg of the chair makes contact with the floor in a circle that is 1.5
Compute the impedance of a series R-L-C circuit at angular frequencies of ?1= 1000rad/s , ?2= 715rad/s and ?3= 545rad/s, What is the phase angle of the source voltage with respect to the current
A 40.0-kg shell is fired from a gun with a muzzle velocity 85.0 m/s at 29.0o above the horizontal. What is the horizontal speed of the other fragment
q1. a chair of weight 74.0 n lies atop a horizontal floor the floor is not frictionless. you push on the chair with a
Particles of charge Q1 = +65 µC, Q2 = +43 µC, and Q3 = -80 µC are placed in a line. The center one, Q2, is 0.35 m from each of the others. find the net force on each charge due to the other two
Write the general solution of the electric potential due to the charge distribution?
You wish to design a velocity selector that will allow protons to pass through only if they have a speed of 500 m/s, You decide to produce this electric field using a parallel-plate capacitor with a plate spacing of 1.0 mm. What is the electric pote..
A copper bar 30.0 cm long is perpendicular to a field of flux density 0.80 Wb/m2 and moves at right angles to the field with a speed of 0.50 m/s
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