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What electric potential energy will a fourth charge q4 = 4mC and located at the origin with respect to the other three charges experience and what is the pendulums period for small angle oscillations?
A 1.5 kg bicycle wheel with a radius of 0.27 m turns at a constant angular speed of 28 rad/s when a(n) 0.33 kg reflector is at a distance of 0.14 m from the axle. What is the angular speed of the wh
A sample containing carbon, oxygen, and an unknown element isplaced in a mass spectrometer. What is the mass of the unknown element
A system of 1402 particles, each of which is either an electron or a proton, What is the mass of this system
A projectile is shot from the ground at an angle of 55 degrees with respect to the horizontal,find the horizontal component and the vertical component of initial velocity
A cannon tilted up at a 26 degree angle fires a cannon ball at 71m/s from atop a 12m -high fortress wall
In the winter sport of curling, players give a 20kg stone a push across a sheet of ice. How much force does the curler exert on the stone
A 46g marble moving at 2.3m/s strikes a 24g marble at rest. What is the speed of the first marble immediately after the collision
In an amusement park water slide, people slide down an essentially frictionless tube. Does the mass of the person make any difference
A 15 kg block is accelerated at 1.7 m/s2 up a frictionless plane inclined at 5.0° to the horizontal, find the change in the block's mechanical energy
A 16 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. what was the muzzle speed of the bullet
Light moving from glass to air changes wavelength from 448.5 nm to 653.7 nm. find the frequency of the light in air
A person in a rocking chair completes 15 cycles in 17s, What are the period of the rocking
Four equal point charges of +3.0 uC are placed in air at the our corners of a square that is 40cm on a side. find the force on any one of the charges
A negative charge -0.550 µC exerts an upward 0.600 N force on an unknown charge 0.210 m directly below it. What is the unknown charge (magnitude and sign)
A converging lens with a focal length of 7.00cm forms an image of a 3.80mm -tall real object that is to the left of the lens. Where are the object and image located
A heart defibrillator passes 11.8 A through a patient's torso for 5.00 ms in an attempt to restore normal beating. What was the path's resistance
White light illuminates an oil film on water. Viewing it directly from above, What is the refractive index of the oil
In a double-slit experiment, slits separated by 1.240e-4 m are illuminated by a coherent 571 nm light source. What is the angular position of the first bright fringe
Oppositely charged parallel plates are separated by 5.78 mm. A potential difference of 600 V exists between the plates. find the magnitude of the electric field between the plates
Red light travels at 2.07×108 m/s in a particular type of oil. What is the index of refraction for red light in the oil
A rocket-powered hockey puck has a thrust of 1.60N and a total mass of 2.10kg. How far does the puck land from the base of the table
An infinite line of positive charge lies along the y axis, with charge density ? = 2.80 ?C/m. Find the magnitude of the net force exerted on the dipole
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. What is the period of a satellite in a geosynchronous orbit
A 600g model rocket is on a cart that is rolling to the right at a speed of 3.0m/s. At what horizontal distance left of the loop should you launch