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Q. A diving board oscillates with simple harmonic motion of frequency 5.6 cycles per second, see the figure below. What is the maximum amplitude with which the end of the board can vibrate in order that a pebble placed there not lose contact with the board during the oscillation?Q. A wooden raft has a mass of 92 kg. When empty it floats in water (density 1000 kg/m3) with 48% of its volume submerged. What mass of sand can be put on the raft without it sinking?
Consider a large parallel plate capacitor with circular plates of radius R. suppose that the electric field between the plates is increasing.
A 68.0 kg person escapes from a burning building by jumping from a window 25m above a catching net. Assuming that air resistance exerts a 95N force on the person during the fall, determine the person's velocity just before hitting the net.
Compute the voltage drop along a 23 length of household no. 14 copper wire (used in 15- circuits). The wire has diameter 1.628 and carries a 12 current.
Assume you are the fish. You get up every morning and weigh yourself (in water), and find you weigh 0.42 N. You, being a boxfish, are a box measuring 4.164 cm per side. You see a poor, hungry fisherman, and decide to be his dinner. You hook yourself,..
Rank the magnitudes of the forces exerted on the following particles from largest to smallest. In your ranking, display any cases of equality. (Use only ">" or "=" symbols. Do not contain any parentheses around the letters or symbols.)
Released from rest at the same height, a can of frozen juice rolls to the bottom of the same hill. What is the translational speed of the frozen juice can while it reaches bottom.
What is a vertical velocity of the ball
What will transform in terms of the observable properties of the black hole as this process continues
A shell of mass m and speed v explodes into two identical fragments. If the shell was moving horizontally (the positive x direction) with respect to Earth, and one of the fragments is subsequently moving vertically with speed v, find out the velocity..
In a certain time period a coil of wire is rotated from one orientation to another regarding a uniform 0.38-T magnetic field. The emf induced in the coil is 3.5 V. Other things being equal, what will the induced emf be if the field had a magnitude..
What is an average speed of the runner
The impact on light fixture swing
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