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Identical 50uC charges are fixed on an x-axis at x= +/-3.0 m. A particle of charge q=-15uC is then released from rest at a point on the positive part of the y-axis. Due to the symmetry of the situation, the particle moves only along the y-axis and has kinetic energy 1.2 J as it passes the point (0, 4.0m). (a) What is the kinetic energy of the particle as it passes through the origin (0, 0)? (b) At what negative value of y will the particle momentarily stop?
A jeweler examines a diamond with a magnifying glass. find the angular magnification when the diamond is held 5.39cm from the magnifying glass
The space shuttle typically orbits 400 km above the earth's surface. The earth has a mass of 5.98 × 1024 kg, Use your knowledge of gravitation to determine the orbital speed of the shuttle's cargo
A sticky hockey puck slides along a frictionless horizontal ice surface at 75m/s in the + x-direction. what is the angle of their final velocity vector below the +x direction
Find the differential equation and use the initial conditions to determine the constant of integration.
A rubber balloon is rubbed against a wool sweater and acquired a charge of -1.6 μC. How many electrons were transferred from the sweater to the balloon?
A rotating wheel requires 8.00 s to rotate 26.0 revolutions. evaluate the constant angular acceleration of the wheel
A cannon fires a cannon ball at 769.26 m/s in a straight line that passes directly over an observer's head. how far is the cannon from the observer
A bar of length 1.5 meters moves to the left at 4.6 m/s along a set of conducting rails. The rails and bar have a net resistance of 10 Ohms. Determine the induced electromotive force
A wire 2.05 m long carries a current of 17.0 Aand makes an angle of 50° with a uniform magnetic field B =1.10 T. Calculate the magnitude of the magnetic force on the wire
The two stars in a binary star system have masses 2.2×1030 and 6.5×1030 . They are separated by 2.1×1012 .What is the system's rotation period, in years? What is the speed of the lightest star? What is the speed of the heaviest star?
imagine that the only visible photons that an electron in a box of unknown length emits have wavelengths of 689nm and
In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 20000 V. The speeds of the electrons are quite large.
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