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A 3.2 m long pendulum is released from rest when the support string is at an angle of 23° with the vertical. What is the speed of the bob at the bottom of the swing?
_______ m/s
Consider the interface between atmospheric air and a body of water, both at 17 °C. What are the mole and mass fraction of water at the air side of the interface? At the water side of the interface?
An air parcel occupied by an ideal gas (T1 = 255 K, V1 = 1500 m3, m1 = 1680 kg) collides and mixes with a second air parcel occupied by a second ideal gas (T2 = 280 K, V2 = 1200m3, m2 = 1392 kg). Assuming the specific heat capacities of the gases in ..
A 750.0 kg boulder is raised from a quarry 125 m deep by a long uniform chain having a mass of 575 kg. What is the max acceleration the boulder can have
The Earth can produce the downward electric field of 150 N/C around its surface. Assume this electric field is uniform through the atmosphere. Estimate the net charge of the Earth
A pendulum consists of a .155 kilograms ball hanging from a light thread, find the angle the pendulum string makes with the Vertical when the system is in equilibrium
What is the frequency of the small axial oscillations that electron will undergo if it is released along the z-axis near the origin.
The drive propeller of a ship starts from rest and accelerates at 2.50 x 10-3 rad/s2 for 2.15 x 103 s. find the total angular displacement of the propeller
The maximum transverse acceleration of a point at the middle of the segment is 8800 m/s^2 and the maximum transverse velocity is 3.50m/s.
A steel cable with total length 59 m and mass 110 kg is connected to two poles. The tension in the cable is 1,260 N, and the wind makes the cable vibrate with a frequency of 2 Hz. Calculate the wavelength of the resulting wave on the cable
questiona solenoidal coil with 24 turns of wire is wound tightly around another coil with 350 turns. the inner solenoid
A barbell spins around a pivot at its center at A. The barbell consists of two small balls, each with mass 400 grams (0.4 kg), at ends of a very low mass rod of length d = .6 m. The barbell spins clockwise with angular speed 20 radians/s.
Some European trucks run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 370 ? rad/s. If the truck uses an average power of 7.7 kW, for how many minutes can it operate between chargings
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