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slender rod CDE of length L Problems and mass m is attached to a pin support at its midpoint D. A second and identical rod AB is rotating about a pin support at A with an angular velocity ω1 when its end B strikes end C of rod CDE. Denoting by e the coefficient of restitution between the rods, determine the angular velocity of each rod immediately after the impact.
An rms voltage of 19.5V with a frequency of 1.50kHz is applied to a 0.365μF capacitor. What is the rms current in this circuit? By what factor does the current change if the frequency of the voltage is doubled?
When a surfer rides an ocean wave on her surfboard she is actually riding on. a. a crest that is toppling over. b. a trough of the wave. c. The rest position of the wave. d. A region of rarefaction.
A laser beam is directed from air (n = 1.0) into an unknown liquid. The angle of incidence is measured to be 60° and the angle of refraction is measured to be 45°. What is the index of refraction of the unknown liquid?
A grandfather clock depends on the period of a pendulum to keep correct time. Find the period of the grandfather clock
An air-filled parallel plate capacitor with a plate spacing of 1.20 cm has a capacitance of 4.30, Calculate the dielectric constant of the inserted material
A soft tennis ball is dropped onto a hard floor from a height of 1.95 m and rebounds to a height of 1.51 m. Calculate its velocity just before it strikes the floor
300g of water at 30 c if each gram gains 3.7 calories of heat, what i the final temperature, how much heat gained by the system
What are valence electrons, and how are they used in the formation of compounds? How is the number of valence electrons in an atom related to its tendency to gain or lose electrons during compound formation?
Estimate Earth's rotational inertia, assuming it to be a uniform solid sphere, What torque applied to Earth would cause the length of the day to change by 1 second every century
you and a friend pull on two ropes to dock a satellite whose mass is 1300 kg. The satellite is initially at position m, How much work did your friend do
A roller coaster of mass 1400 kg is launched from ground level by a spring. If the spring is compressed by 2.8 m, what does the constant requires being so that the roller coaster has a spread of 16 m/s as it passes over the crest of a 21 m height?
Two electrical charges, (q1 = 2.25 μC and q2 = –6.75μC) are located along the x-axis. q1 is located at the origin; q2 is located at x = 1.25 cm. Where, if anywhere, along the x-axis could you place a third chargeso that it would not accelerate as a..
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