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A chandelier is suspended using two chains which makes an angle of q1020 = 40 and q=150 with the horizontal as shown in the adjacent figure. The weight of the Chandelier is 360N. Find the tension in each of the two ropes.
The sum of all X- and Y- components of the forces should be separately equal to zero]
The dial on an AM radio contains numbers ranging from about 530 to about 1600. What is the corresponding range of wavelengths
a plane leaves seattle flies 82.0 at 20.0 north of east and then changes direction to 55.0 south of east. after flying
At a rock concert, the sound intensity 1.0 m in front of the bank of loudspeakers is 0.10 W/m^2. How much energy is transferred to each eardrum in one second
A 3.0-kg block is traveling in the -x direction at 5.0 m/s, and a1.0-kg block is traveling in the +x direction at 3.0 m/s. (a) Find hte velocity Vcm of the center of mass.
A homogeneous bar of length L can rotate on a horizontal frictionless plane around a vertical axis passing during one of its ends (moment of inertia I = ML2/3). It is at rest until a small bullet of mass m with velocity v perpendicular to the bar hit..
Figure (a) shows an element of length ds =1.00 µm in a very long straight wire carrying current. The current in that element sets up a differential magnetic field dB at points in the surrounding space
A large solar panel on a spacecraft in Earth orbit produces 1.8kW of power when the panel is turned toward the sun. What power would the solar cell produce
A bar magnet with its north pole pointing toward a coil of wire with a cross-sectional area of 0.020 m2, find the magnitude of the induced emf in the coil of wire
A 2.40 MHz sound wave travels through a pregnant lady's abdomen and is reflected from the fetal heart wall of her unborn baby. Find the speed of the fetal heart wall at the instant this measurement is made
Describe how Newton's three laws of motion involved in the process of lifting a weight using the high pulley. Consider, too, what would happen if the floor and seat where completely smooth. Is this a process in which momentum and energy are conserved..
A bar magnet is oriented with its magnetic dipole moment at 50.7° to the direction of a 0.0983-T magnetic field, Find the magnitude of the magnet\'s magnetic dipole moment
Two ice skaters, Daniel (mass 60.0kg) and Rebecca (mass 45.0kg), are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, find the magnitude of Daniel's velocity after the collision
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