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A uniform disk of radius r = 120 mm is welded at its center to two elastic rods of equal length with fixed ends at A and B. Knowing that the disk rotates through an 8° angle when a 500-mN . m couple is applied to the disk and that it oscillates with a period of 1.3 s when the couple is removed, determine
(a) the mass of the disk,
(b) the period of vibration if one of the rods is removed.
An artillery expert fires a cannonball at an angle of 36.87o at an enemy encampment sitting on a plateau 40 m high and 300 m horizontally from the cannon. How long was the cannonball in the air
A circuit consists of a 9.0-V battery connected to three resistors (37 ?, 17 ?, and 150 ?) in series. Find the current that flows through the battery
A rock is dropped from a tree of height 25 m into a lake (depth 5.0 m) below. What is the total elapsed time
Calculate percentage of CaO in limestone sample.
A gardener feels it is taking him excessively long to water a garden with a 0.952cm diameter hose. By what factor will his time be shortened, if he uses a 1.58 cm diameter hose.
A 20.0%u03BCF capacitor is charged by a 160.0-VV power supply, then disconnected from the power, Calculate the oscillation frequency of the circuit
A spherical shell has an outside radius of 2.45 cm and an inside radius of a. The shell wall has uniform thickness and is made of a material with density 4.74 g/cm3. What is this maximum mass
A 400g mass is attached to a spring causing it to stretch a vertical distance of 2cm. The mass is then pulled downward a distance of 4cm and released to vibrate with SHM. What is the spring constant?
a woman and her dog are out for a morning run to the river which is located 3.51 km away. the woman runs at 3.75 ms in
The average atmostpheric pressure Po on the surface of Mars is 6.0hPa. The radius of the planet is r = 3400 km. The acceleration dueto gravity is 3.7m/s^2. Compute the total mass M of the Martianatmosphere. Express M is Kg
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. Find the total sound intensity that the man hears when he is at his initial position halfway between the speakers
You use a HeNe laster, which has a wavelength of 633 nm, What is the vibrational frequency of the vibration corresponding to this peak
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