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A water wave has a frequency of 6 Hz and a wavelength of 3 m.
a) What is the period of these waves?
b) What is the wave velocity?
What is the charge density on the surface. suppose that air resistance can be neglected.
question calculate the velocity in ms-1 of photoelectrons ejected from a sodium metal surface which has a work function
A typical American house requires an average 20 kW for heating. Explain how many homes could be heated with the waste heat of this one power plant?
A particle of charge +15 µC and mass 2.00 10-5 kg is released from rest in a region where there is a constant electric field of +280 N/C
The left ventricle of the heart accelerates blood from rest to a velocity of + 29.5 cm/s. If the displacement of the blood during the acceleration is + 2.29 cm, determine its acceleration
LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. What is the power of one laser pulse
At the intersection of Texas Avenue and University Drive, a yellow, subcompact car with mass 800kgtraveling east on University collides with a maroon pickup truck with mass 1850kg, Calculate the speed of the car before the collision
Two 100kg lead spheres are suspended from 160m -long massless cables. The tops of the cables have been carefully anchored exactly 1.0m apart
The greatest ocean depths on earth are found in the Marianas Trench near the Philippines, Find the pressure due to the ocean at a depth of 10.7 kilometer, assuming sea water density is constant all the way down
A heavy-duty stapling gun uses a 0.131-kg metal rod that rams against the staple to eject it. The rod is pushed by a stiff spring called a "ram spring" (k = 31800 N/m).
A 13 g projectile traveling 153 m/spenetrates into a 0.25-kg wad of putty and emerges cleanly at28 m/s. how fast does it move after the projectile emerges
A 50.5 g ice cube, initially at 0°C, is dropped into a Styrofoam cup containing 360 g of water, initially at 19.2°C. What is the final temperature of the water
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