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A cylindrical metal can with a radius of 4.25 centimeter is floating upright in water. A rock is located in the can, causing it to sink 0.0238 meter deeper into the water. Estimate what is the weight of the rock?
A 2.0 m long Pendulum is released from rest, when the supportstring is at an angle of 25 degree with the vertical. What is the speed of the bob at the botttom of the swing
An engineer is given the job of designing the water system for atall building. He decides to locate the pumps at ground level, what must the pressure be at pump level
A bucket with a mass of 3.0 kilogram is suspended by a rope that is wrapped around a cylinder. find the velocity of the bucket after it has fallen 4.0 meter
A tank of compressed air of volume 1.0 m3 is pressurized to 40.0 atm at T = 273 K. A valve is opened and air is released until the pressure in the tank is 33.0 atm. How many air molecules were released?
The electron of a hydrogen atom makes a transition from the n= 5 state to the n = 2 state. What is the wavelength of the emitted photon?
A solenoid 27.0cm long and with a cross-sectional area of 0.510cm2 contains 460 turns of wire and carries a current of 90.0A. Calculate the magnetic field in the solenoid
Original problem: a person walks at constant speedv1 along a straight line from A to B and then back alongthe line from B to A at constant speed v2, What is theaverage speed over the entire trip
A string 27.0 centimeter long and fixed at both ends of a musical instrument oscillates in its n = 1 mode. Calculate the frequency of the emitted sound wave
The drill pipe has an outer diameter of 75 mm, a wall thickness of 6 mm, and a weight of 0.8 kN/m. If it is subjected to a torque and axial load as shown, determine the principal stresses and maximum in-plane shear stress
A 330g air track cart on a horizontal air track is attached to a string that goes over a pulley with a moment of inertia of 5.00*10^-6 kg*m^2 and a radius of 1.35 cm. a 255-g mass hangs from the other end of a string and is released. Write Newton’s s..
A 190? resistor is connected to an AC source withE0 = 14V. What is the peak current through the resistor if the emf frequency is 100 Hz
a water balloon is launched from ground level with an initial velocity of 12.4 m/s @ 27.0° above the horizontal. Find how high it goes above the launch height
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