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Q1. A container holds a gas consisting of 1.76 moles of oxygen molecules. One in a million of these molecules have lost a single electron. What is the net charge of gas?
Q2. How strong is the electric field between the plates of a 0.78 mu F air-gap capacitor if they are 3.0 mm apart and each has the charge of 77 mu C?
Q3. A 3.40 g coin is positioned 16.0 cm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of mu_s = 0.720 and mu_k = 0.480. What is maximum angular velocity with which the turntable can spin without the coin sliding?
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
Which kinetic energy equals to rotational motion
A large tanker truck can carry 30 ton (30,000 lb) of liquid. (a) What volume of water can it carry? (b) What volume of gasoline can it carry.
What is resultant force
What are the components of the ships displacement
A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is vertical to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s.
The sun falls on a concave mirror and forms an image 4.5 cm from the mirror. If an object 22 mm high is placed 12.7 cm from the mirror, where will its image be produced.
Coherent light with wavelength 599nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00m from the slits. The first-order bright fringe is a distance of 4.84mm from the center of central brigh..
Coefficient of linear expansion for aluminium
What is tension in each string
Find an expression for work done by the gas
What lengths of ship three sides according to the observer
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