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The balance wheel of a watch oscillates with angular amplitude 0.90? rad and period 0.68 s. Find
(a) the maximum angular speed of the wheel,
(b) the angular speed of the wheel at displacement 0.90?/2 rad, and
(c) the magnitude of the angular acceleration at displacement 0.90?/4 rad.
Calculate the angular velocity of the wheel when the suitcase reaches the ground. compute the moment of inertia of the wheel.
A bungee jumper with mass 63 jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 47. He finally comes to rest 21.00 below the level of the bridge.
A ray of light traveling in air is incident on the flat surface of a piece of glass at an angle of 66.5° with respect to the normal to the surface of the glass, what is the refractive index of the glass
Some cell walls in the human body have a layer of negative charge on the inside surface and a layer of positive charge of equal magnitude on the outside surface, Estimate the total electric-field energy stored in the wall of a cell of this size
In this week's video, Bill Goodykoontz talks about morality and ethics in pop culture. The freedom of speech and expression allows the variety of pop culture media to be released, which may sometimes be offensive material. Can pop culture still have ..
The height of a door is measured by four people and their measured values are 217.0 cm, 217.9 cm, 217.3 cm, and 217.6 cm, What is the standard deviation for the four measurements
An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Use energy methods to get the magnitude and direction of its velocity
A spring-mass system has a natural frequency given by w=sqrt(k/m) km, Determine natural frequency, w in units of rad/sec and Hz
An artificial lens is implanted in a person's eye to replace a diseased lens. The distance between the artificial lens and the retina is 2.70 cm, What is the power of the implanted lens
When a 5.5 cm long pencil is arranged perpendicular to a convex mirror's optical axis at a distance of 29 cm from the mirror, its image is 2.8 cm tall. (a) What is the mirror's focal length? (b) How tall is the pencil's image if the pencil is move..
Question on constant speed
Find the probability that the electron will tunnel through the barrier.
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