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Question1
The ink drops have a mass = 1.00×10-11 each and leave nozzle and travel horizontally toward the paper at velocity = 23.0. The drops pass through a charging unit that gives each drop a positive charge by causing it to lose some electrons. The drops after that pass between parallel deflecting plates of length = 1.85, where there is a uniform vertical electric field with magnitude = 7.80×104.
Question2
If a drop is to be deflected a distance = 0.340 by the time it reaches the end of deflection plate, what magnitude of charge must be given to the drop? Imagine that the density of the ink drop is 1000, and ignore the effects of gravity.State the answer numerically in coulombs.
Question3
To test the quality of a tennis ball, you drop it onto the floor from a height of 4.35 m. It rebounds to a height of 2.50 m. If the ball is in contact with the floor for 12.2 ms, what is its average acceleration throughout that contact?
An object travels in a circle of radius 2.0 m. At time t = 0, the object has a velocity of 10 m/s and it slows uniformly to a stop in 30s. a. Draw a circle and indicate the velocity vector and the acceleration vector at some time between 0 and 30s.
Elucidate what was the magnitude of the centripetal acceleration of the rock when it was on the string? What was its speed when it was on the string?
A 25.0 kg child on a 2.00 m long swing is released from rest when the ropes of the swing make an angle of 60.0 degrees with the vertical. determine the childs speed at the lowest position
A 3kg object moving along the positive x direction with a speed of 10m/s exploeds into a 2kg and a 1kg fragments. what is the speed of the 2kg fragment?
A double slit has two slits of width 0.650 mm separated by a distance between centres of 2.340 cm. How many interference fringes could be seen under the diffraction central maximum
A sample of 10.0 mCi decays 1.2% in a single day. What is the activity after 30 days?
A rocket with mass 1000kg accelerates upwards at a rate of 20m/s (a) How long does it take before it is going at the speed of sound (334 m/s)? (b) How long does it take before the rocket is at a height of 100km?
If unpolarized light of intensity l0 passes through an ideal polarizer, what is the intensity of the emering light
A 303 turn solenoid has a radius of 5.00 cm and a length of 22.0 cm. Find the inductance of the solenoid
A clock has a second hand whose tip rubs against the inside of the glass cover. what is the minimum torque that must be applied to the second hand
To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water. What fraction of the specimen's apparent volume is solid
a 1.0 point charge is 15m from a second point charge, what is the magnitude of the second charge?
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