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Question1
An inkjet printer, letters are built up by squirting drops of ink at a paper from a rapidly moving nozzle. The pattern on the paper is controlled by an electrostatic valve that determines at each nozzle position whether ink is squirted onto the paper or not. The ink drops have a radius of 19.0 and leave the nozzle and travel toward the paper at a velocity of 25.0. The drops pass throughout the charging unit that gives each drop a positive charge q by causing it to lose some electrons. The drops then pass between parallel deflecting plates of length 1.60 where there is a uniform vertical electric field with a magnitude of 8.05×104.
If a drop is to be deflected a distance of 0.350 by the time it reaches the end of the deflection plate, what magnitude of charge must be given to the drop? (Suppose that the density of the ink drop is).
Question2
A 8.0g bullet is fired into a 12kg wood block that is at rest on a wood table. The block, with bullet embedded, slides 5.0cm across the table. The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet?
A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 50.5 m/s and returns the shot with the ball traveling horizontally, What is the impulse delivered to the ball by the tennis racquet
The four tires of an automobile are inflated to a gauge pressure of 2.1 105 Pa. Determine the weight of the automobile
Find the x and y components of vector v = (8.0 cm/s, -x direction) (answer should be in cm/s), Find the x and y components of vector d = (4.0 km, 33 degress left of the + y axis)
question1a particle is uncharged and is thrown perpendicularly upward from ground level with a speed of 23.7 ms. as a
How to find out speed of the block
question1two identical clocks a and b are at first synchronized at the bottom inside a vacuum chamber xed on the
A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. determine how fast will the disk be turning
The temperature of a gold bar rises by 10.0°C when it absorbs 0.677 kJ of energy by heat. The mass of the bar is 525 g. Determine the specific heat of gold from these data
Three point charges are located on the positive x-axis of a coordinate system. Charge q1 = 2.0 nCis 2.0 cm from the origin, What is the net force
A 3.8kg block of wood sits on a table. A 3.0 g bullet, fired horizontally at a speed of 450m/s , What is the speed of the block immediately after the bullet exits
Let's build a helium atom. Start with a nucleus with 2 protons and 2 neutrons, Calculate the energy gained by the system constructing this atom
The circular disk shown rotates in a horizontal plane. A 3-lb block rests on the disk 8 in. from the axis of rotation. find the length of time required for the block to begin to slip
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