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Two long, parallel wires, each with a mass per unit length of 44 g/m, are supported in a horizontal plane by 6.0-cm-long strings, as shown in the figure below. Each wire carries the same current I, causing the wires to repel each other so that the angle ? between the supporting strings is 16°.
Determine the magnitude of each current.
A cube of wood having an edge dimension of 20.3 cm and a density of 647 kg/m3 floats on water. What is the distance from the horizontal top surface of the cube to the water level?
According to safety standard for air bags, the maximum acceleration during a car crash should not exceed 60 g and should last for no more than 36 ms.
A monkey is swinging on a vine. The monkey's mass is 72kg, What is the length of the vine
A spring with an unstrained length of 0.069 m and a spring constant of 2.7 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring.
The focal length of a simple magnifier is 7.60 cm. Assume the magnifier to be a thin lens placed very close to the eye. what is the height of its image formed by the magnifier
A parallel plate capacitor of capacitance 4.1 uF has the space between the plates filled with a slab of glass with k = 2.9, Find the energy stored in the capacitor after the glass is removed
A 1.0-cm-thick layer of water stands on a horizontal slab of glass. What is the ray's direction of travel in the glass
What minimum heat is needed to bring 138g water at 22°C to the boiling point and completely boil it away.
A 31.0 kg child runs with a speed of 3.00 m/s tangential to the rim of a stationary merry-go-round. Calculate the initial kinetic energy of the system
A mass-spring system has k = 55.2N/m and m = 0.405kg. Find the frequency of its simple harmonic motion
imagine the water is in freefall as it drops. What charge must be on each plate.
A Ferris wheel rotating at 20 rad/s decelerates with a constantangular acceleration for -5.0 rad/s2. How many revolutions does it rotate before coming to rest
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