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A small button placed on a horizontal rotating platform with diameter 0.316 m will revolve with the platform when it is brought up to a rotational speed of 39.0 rev/min, provided the button is a distance no more than 0.140 m from the axis. (Take the free fall acceleration to be g = 9.80 m/s^2.)
What is the coefficient of static friction between the button and the platform?
How far from the axis can the button be placed, without slipping, if the platform rotates at 59.0 rev/min?
A cylindrical capacitor consists of a cylinder (of length L and radius a) with a total charge Q nested inside a thin conducting cylindrical shell (of length L and radius b) with total charge -Q
You can hear beats when two tuning forks are sounded together. The tuning forks have labels showing them to be 242 Hz and 248 Hz frequencies
You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.437 × 10-3 m3/s, At what speed does the water exit the nozzle
A long cylindrical conductor is placed in an initially (i.e., before the cylinder is present)uniform electric field which is perpendicular to the axis of the cylinder. Find the electrical potential outside of the cylinder
Electrons are located at the points (0,1), (3,4), (1, 2). Find the net electric field at the origin
question1the starter motor of a car engine draws a current of 126 a from the battery. the copper wire to the motor is 6
Rank the vector combinations on the basis of their angle, measured counter clockwise from the positive x axis. Vectors parallel to the positive x axis have the angle of 0. All angle measures fall between 0 and 360.
How many electrons would have to be added to one of these spheres to make it electrically neutral?
The area of the opening can be calculated from pi (3.1416) times the radius squared. If your pupil is open to a radius of 3.5 mm, explain how much light energy passes through in one minute? Give your answer in mJ.
In a primary coil the current is initially 3.4 A. After a time of 0.14s, the current will change to 1.6A. What is the mutual inductance of the coils
q1. 1.76- block at rest on a ramp of height. while the block is released it slides without friction to the bottom of
Calculate the gravitational force on a spacecraft 8700km above the Earth's surface if its mass is 1200kg
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