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A sphere with radius 0.15m has density p that decreases with distance r from the center of the sphere according to p= 2.75*10^3 kg/m^3 - (9.5*10^3kg/m^4)r.
Calculate the total mass of the sphere.
Calculate the moment of inertia of the sphere for an axis along a diameter.
A hot-air balloon is ascending at the rate of 14 m/s and is 57 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?
Must show all work!!!! A Playground merry-go-rond has a radius of r=3.0m, calculate th angular velocity of the merry go round and child system when the child reaches the rim
You lay a mirror flat on the floor with one edge against a wall and aim a laser at the mirror. Find the angle of incidence of the laser ray on the mirror
A 0.329-kg volleyball approaches a player horizontally with a speed of 12.9 m/s. What impulse is delivered to the ball by the player
If the pendulum makes a maximum angle of 5.4? with the vertical, what is the length of the pendulum
In a mass spectrometer the charged particles have to reach a common specific speed. To do so, they are accelerated with an electric field, determine the direction of the magnetic force
Light of wavelength 655 nm is used to illuminate normally two glass plates 20 cm in length that touch at one end, How many bright fringes appear along the total length of the plates
What is the image distance and What is the lateral magnification
An oscillatory water wave has a period of 2.56 seconds and a wavelength of 7.12 cm. What is the angular frequence
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. find the increase in temperature of the nail after 3 blows from the hammer
Theradius changes from 10.0 cm to 20.0 cm in a time of 8.0 s.The magnetic field is 3.0 T. The loop has a resistance of 5.0 ohms. what is thevalue of the current while the radius is changing
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
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