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Distinguish between
(a) an atom and a molecule,
(b) an atom and an ion, and
(c) a molecule and a polyatomic ion. What are the most common names for these compounds and ions,
An electron in a television picture tube has a classical kinetic energy of 60 keV, which is the kinetic energy that Newton would calculate using the measured speed, What is the actual kinetic energy of the electron
The magnetic field produced by the solenoid in a magnetic resonance imaging (MRI) system designed for measurements on wholehuman bodies has a field strength of 7.81 T, and the current in thesolenoid is 3.68 x 102 A. What is the number of turnsper ..
what is the law of reflection?what is the law of refraction? what other name is sometimes given to it?what is meant by
A radar station locates a sinking ship at range 15.6 km and bearing 136° clockwise from north. From the same station, a rescue plane is at horizontal range 19.6 km, 160° clockwise from north, with elevation 2.10 km. (a) Write the displacement vector ..
What is the repulsive force between two pith balls that are 12.0 cm apart and have equal charges of -26.0 nC?
A silver medallion is sealed within a transparent block of plastic. An observer in air, viewing the medallion from directly above, sees the medallion at an apparent depth of 1.6 cm beneath the top surface of the block.
A 27.5 Amp current flows in a long straight wire. Obtain the strength of the resulting magnetic field at a distance of 51.3 centimeter from the wire
A 540-W space heater is designed for operation in Germany, where household electric outlets supply 230 V (rms) service. What is the power output of the heater when plugged into a 120-V (rms) outlet in a house in the United States?
You are driving east on 8th Street (Tamiami Trail) at a speed of 33. What is the frequency of the siren
a 30 kg crate is pulled across a flat floor with 80 n of force. the coefficient of kinetic friction between the crate
A record with a 10 cm radius and 200 g mass is dropped vertically onto a freely rotating turntable (meaning the turntable is not being driven by a motor).
The electric field near the surface of a uniformly charged conducting plane can be determined by Gauss's law (look it up). what is the magnitude of the electric field near the surface
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