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A 0.5kg mass is attached to a spring of spring constant 20N/m along a horizontal frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.5m/s at the equilibrium position.
A) what is amplitude of vibration?
B) At what location are the kinetic energy and potential energy the same?
A circular coil (660 turns, radius = 0.036 m) is rotating in a uniform magnetic field. Find the magnitude of the magnetic field at the location of the coil
The component of the external magnetic field along the central axis of a 18-turn coil of radius 28.0 cm decreases from 1.90 T to 0.550 T in 2.10 s. What is the direction of the current
A rope is used to pull a 3.57 kg block at constant speed 3.58 m along a horizontal floor. What is the work done by the rope's force
A uniformly charged wire or radius R1=0.02m runs down the axis of a cylinder of inner radius R2=0.06m. Find the electric field at the surface of the wire
The attractive electrostatic force between the point charges 7.35x10^-6C and Q has a magnitude of 0.400N when the separation between the charges is 2.92m. Find the sign and magnitude of the charge Q.
The minimum distance required to stop a car moving at 38.0 mi/h is 41.0 ft. What is the minimum stopping distance for the same car moving at 68 mi/h, suppose the same rate of acceleration.
You are at a rock concert, and the sound intensity reaches levels as high as 100 dB. Calculate the amplitude of this oscillating force
An electron in the beam of a typical television picture tube is accelerated through a potential difference of 20,000 V before it strikes the face of the tube. what is the energy of the electron in electron volts
The orbit of this second satellite has a radius of 8.45 x10^6 m. What is the orbital speed of the second satellite.
A uniform rod of mass 3.05×10?2kg and length 0.350m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the rod after the rings leave it
A piece of wood is 0.640m long, 0.230m wide, and 7.00×10^?2 m thick. What is the mass of this volume of lead
Suppose that the Earth's orbit around the Sun is perfectly circular. Employing conservation arguments, find the value of the eccentricity e of the orbit
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