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A long piece of piano wire of mass of 4 g/m is under tension of 1.0 kN. What is the speed of transverse waves on this wire? Determines the wavelength of a wave on this wire if its frequency is 300 Hz?
A parallel-plate vacuum capacitor has 9.20 J of energy stored in it. The separation among the plates is 2.90 mm .If the separation is decreased to 1.55 mm. What is the energy now stored if the capacitor was disconnected from the potential source befo..
Suppose a 7.1 eV electron and a 9.77 eV positron collide, Find the frequency of these new photons
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. What is the surface charge density on each plate
The light bulb in the circuit has a resistance of 11 ohms and consumes 6.7 W of power as the 1.25 m long, What speed must the rod have if the current in the circuit is to be 0.65 A
A long solenoid has 108 turns/cm and carries current. An electron moves within the solenoid in a circle of radius 2.03 cm perpendicular to the solenoid axis. The speed of the electron is 0.0359c (c = speed of light). Discover current i. Give the answ..
The potential differences across the capacitors are the same only if the capacitances are the same.
A permanent dipole is at rest at origin of a coordinate system with a random orientation. What is the equilibrium orientation of the dipole
A projectile is launched into the air with an initial speed of vi at an launch angle of 30 degrees above the horizontal. The projectile lands on the ground 2.0 seconds later. Calculate initial velocity.
State the position and magnitude of the maximum bending moment on the beam.
The scale of a spring balance that reads from 0 to 15.0 kg is 12.0 cm long. How much does the package weigh
A 1.9-kg block slides down a frictionless ramp. The top of the rampis 1.5m above the ground; the bottom of the ramp is 0.25m above theground. The block leaves the ramp moving horizontally, and lands ahorizontal distance d away. Find the distance d.
Consider the mass spectrometer shown schematically. The electric field between the plates of the velocity selector is 950 V/m, and the magnetic fields in both the velocity selector and the deflection chamber have magnitudes of 0.930T. Calculate th..
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