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A single square loop of wire 23.7 cm on a side is placed with its face parallel to the magnetic field between the pole pieces of a large magnet (which is another way of saying the vector normal to the face of the loop is perpendicular to the magnetic field). When 7.00 A flows in the coil, the torque on it is 0.305 m*N. What is the magnetic field strength?
The figure below shows a plastic ring of radius R =50.4 cm. Two small charged beads are on the ring: Bead 1 of charge+2.33 μC is fixed in place at the left side; bead 2 of charge+6.02 μC can be moved along the ring. The two beads produce anet elec..
A very thin sheet of glass (n=1.5) floats on the surface of water (n=1.33). When illuminated with white light at normal incidence, What is the thickness of the glass
A net force of 7 newtons acts on an object that weighs 49 newtons. What is the resulting acceleration
A damped mass-spring system oscillates at 165 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 7.0 cm and the energy of the oscillating system is then 70 J.
A generator delivers an AC voltage of the form ?v = (64 V) sin (75?t) to a capacitor. The maximum current in the circuit is 1.50 A. Find the rms voltage of the generator
What is amplitude of the subsequent oscillations
A bowling ball (mass 7.2 kg, radius = 0.11 m) and a billiard ball (mass = 0.38 kg, radius = 0.028 m) may each be treated as uniform spheres. what is the magnitude of the maximum gravitational force that can exert on the other?
A 22 child slides down a 2.4 -high playground slide. She starts from rest, and her speed at the bottom is 1.9 What is the change in thermal energy of the seat of her pants
light with a wavelength range of 145-295 nm shines on a silicon surface in a photoelectric effect apparatus, What is the longest wavelength of the light that will eject electrons from the silicon surface
The ice has a thickness of 4.75 10-4 m, and the windshield has an area of 1.25 m2. The density of ice is 917 kg/m3. Explain how much heat is required to melt the ice?
The figure below shows a mercury barometer. Consider two barometers, one using mercury and another using an unknown liquid. estimate the density of the unknown liquid
A 106g Frisbee is 18cm in diameter and has half its mass spread uniformly n the disk and the other half concentrated in the rim. What is the Frisbee's rotational inertia
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