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Solve the all parts of given problem:
Problem: Two 2.6cm -diameter disks face each other, 3.0mm apart. They are charged to ±20nC.
Part A: What is the electric field between the disks?
Part B: A proton is shot from the negative disk toward the positive disk. What launch speed must the proton have to just barely reach the positive disk?
I need help to find what launch speed must the proton have to just barely reach the positive disk.
A rock is thrown directly upward 56.3 meters off a roof and misses the roof on the way back. It strikes the ground 4 seconds later. Neglecting air resistance, what was the speed of the rock?
A spring is hung from the ceiling. A 0.400-kg block is then attached to the free end of the spring. When released from rest, the block drops 0.130 m before momentarily coming to rest, after which it moves back upward.
A circular coil 19.0cm in diameter and containing nine loops lies flat on the ground. Determine the torque on the coil. Express your answer using three significant figures and include the appropriate units
Superheated water vapor initially at 15 bar and 440°C is cooled at constant pressure to a saturated vapor state and is then cooled at constant volume to a final temperature of 120°C, Determine the quality of the water at the final state
A block is weighing 100 Newton is pushed on a horizontal table at constant velocity by a 25 Newton force, oriented parallel to the table's surface. Find the coefficient of kinetic friction between book and table
An elevator (mass 4200 kilogram) is to be designed thus that the maximum acceleration is 0.0300 g. Obtain the maximum force the motor should exert on the supporting cable
Two mirrors form a vertex with an angle of 128°. If a ray of light strikes mirror 1 with an angle of incidence of 48°, find the angle of reflection of the ray when it leaves mirror 2
a 7900 kg car accelerates from rest at the top of a drivewaythat is sloped at an angle of 16.7 degrees with the horizontal. what is the length of the driveway
Find the center of mass of a water molecule, referring to the figure below, with d = 0.096 nm and θ =104.5°. The mass of an oxygen atom is 16 u, and The mass of a hydrogen atom is 1 u, where u is the atomic mass unit. Use the center of the oxygen ato..
A string vibrates according to the equation y=5sin(pi*x)/3 cos(40pi*t), where x and y are in centimeters and ti is in secons. What is the distance between nodes
Closest Neighbor Our closest stellar neighbor, Proxima Centauri, is 4.3 light years away. It has been suggested that TV programs from our planet have reached this star and may have been viewed by the hypothetical inhabitants of a hypothetical planet ..
A five-bladed airplane propeller can be thought of as identical uniform rods protruding radially from its axis. what is its rotational kinetic energy
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