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Two ice skaters, with masses of 50.0kgand 85.0kg, are at the center of a 60.0m-diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink.
If the heavier skater reaches the edge in 20.0 s , how long does the lighter skater take to reach the edge?
A small glass bead has been charged to +19 nC. A metal ball bearing 1.0 cm above the bead feels a 0.025 N downward electric force
The supersonic aircraft Concorde has a length of 63 when sitting on the ground on a typical day when the temperature is 13.00. The Concorde is primarily made of aluminium. In flight at twice speed of sound, friction with the air warms the Concorde..
Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale
a 5.80kg piece of solid copper metal at an initial temperature t is placed with 2.00 kg of ice that is initially at
A transformer with 580 turns in its primary coil has to decrease the voltage from 6380 V to 220 V for home use
a nonconducting solid sphere of radius 10.4 cm has a uniform volume charge density. the magnitude of the electric field
A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 85.3°. Find the dispersion of the slab
A parallel-plate capacitor has plates, each with an area of 4.0 cm2, that are separated by a distance of 0.35 mm. What is the potential difference across the plates now
A proton of mass (m) moving with a speed of 3.0x 10^6 m/s undergoes a head-on elastic collision with an alpha particle of mass (4m), What are the velocities of the two particles after the collision
An electric dipole is formed from ±1.0nCcharges spaced 2.00mm apart, What is the electric field strength at the points (x, y) = (14.0 cm , 0 cm),(x, y) = (0 cm, 14.0 cm)
a charge of 3.10?c is held fixed at the origin. a second charge of 3.10?c is released from rest at the position 1.25 m
A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.284m2 and a plate separation of 4.14mm, What is the store energy in the capacitor
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