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A charge q1 = +3.00 nC is placed at the origin of an xy-coordinate system, and a charge q2 = -1.00 nC is placed on the positive x-axis at x = 4.00 cm. (a) If a third charge q3 = +8.00 nC is now placed at the point x = 4.00 cm, y = 3.00 cm, find the x- and y-components of the total force exerted on this charge by the other two. X- component? Y-Component? (b) Find the magnitude and direction (from the x-axis) of this force.
A force of F=9.0i+8.0jN is applied to an object about a fixed axis aligned with the z direction. If the force applied at the point (6.00 m, 9.00 m), illustrate what is the magnitude and direction of the torque?
A 3.1-cm-tall object is 47 cm in front of a converging lens that has a 11.8 cm focal length. Calculate the image position and height. position cm height cm.
A particle experiences two simultaneous harmonic motions x(t) = x1(t) + x2(t), where x1(t) = cos(3t) and x2 = cos(3.2t + pi/6). Simplify x(t) and determine the beat period
A point particle with charge q = 82 µC is placed at a corner of a cube of edge a = 11 cm. What is the flux through (a) each cube face forming that corner and (b) each of the other cube faces?
An astronaut is traveling in a space vehicle that has a speed of 0.480c relative to Earth. The astronaut measures his pulse rate at 76.0 per minute. What pulse rate does the Earth observer measure
The function x = (3.8 m) cos[(3? rad/s)t + ?/4 rad] gives the simple harmonic motion of a body. At t = 3.7 s, what are the (a) displacement, (b) velocity, (c) acceleration, and (d) phase of the motion? Also, what are the (e) frequency (in Hz) and (f)..
Describe the basic concept of the Atwood's machine. What is the net applied force? What is the mass to which this net force is applied
Assume that the sun runs out of nuclear fuel & suddently collapses to form a white dwarf star, with a diameter equal to that of the Earth. Estimate the new rotation period of the Sun.
A 5.0 kg box, starting from rest, slides down a 5.0 m high frictionless hill, then across a 2.0 m wide horizontal surface, and finally hits a horizontal spring with spring constant 500 N/m. find the speed of the box just before hitting the spring
A certain material is in a room at 27°C. If the absolutetemperature (K) of the material is tripled, its resistance doubles.(Water freezes at 273 K.) What is the value for a, the temperature coefficient of resistivity?
A freight company uses a compressed spring to shoot 1.7 kg packages up a 1m high frictionless ramp into a truck. The spring constant is 241 N/m and the spring is compressed 33 cm.
q1. if the create has a mass of 90 kg and is 1.6 m tall and 0.80 m in depth and width what is the minimum force needed
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