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Q1. What must the charge (sign and magnitude) of a particle of mass 1.47 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 700 N/C?
Use 9.81 m/s^2 for the magnitude of the acceleration due to gravity.
Q2. What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude to its weight?
Use 1.67×10-27 kg for the mass of a proton, 1.60×10-19 C for the magnitude of the charge on an electron, and 9.81 m/s^2 for the magnitude of the acceleration due to gravity.
A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal
A proton moves 1.5 cm parallel to auniform electric field of E = 220N/C. How much work is done by the field on the proton?
A uniform cylindrical satellite has four tangential rockets. mass = 3600, radius = 4.0m, what is the required steady force of each rocket if the satellite is to reach 32 rpm in 5.0 min?
A chamber with a fixed volume of 1.0 m3 contains a monatomic gas at 3.00 102 K. The chamber is heated to a temperature of 5.00 102 K. How many gas molecules are in the chamber
A raft is constructed of woodhaving a density of 626.2kg/m3. how deep is the bottom of the raft below water level
An aluminum rod is 23.0 cm long at 20°C and has a mass of 350 g. If 15000 J of energy is added to the rod by heat, what is the change in length of the rod
a 0.28- muf capacitor is charged by a 1.2- v battery. after being charged the capacitor is connected to a small
The upper surface of a cube of gelatin, 5.0 cm on a side, is displaced 0.64 cm by a tangential force. what is the magnitude of the tangential force
How would you determine the density of an irregularly shaped rock, Is buoyant force a conservative force
Determine the position q1 of the image formed by the first converging lens.
The motion of an object is described by the equation x = (1.9 m) cos(?t/3.5), What is the frequency of the motion
A bat hits a moving baseball. If the bat delivers a net eastward impulse of 0.8 N-s and the ball starts with an initial horizontal velocity of 5.0 m/s to the west, what is the mass of the ball
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