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A 10 kg iron ball rolling at 2 m/s on a horizontal surface strikes a 1 kg wood ball of the same size which was at rest. What is the veloicty of each ball after the collision? Assuming KE was conserved how much of the KE of the iron ball was transferred to the wooden ball?
a circular loop of radius 8 cm lies in a uniform magnetic field with the field perpendicular to the loops plane. the
consider the earth and a cloud layer 825 m above the earth to be the plates of a parallel-plate capacitor. if the cloud
the plate on the back of a certain computer scanner says that the unit draws 0.340 a of current from a 120 v 60.0 hz
An apparatus similar to the one used in lab uses an oscillating motor at one end to vibrate a long rope with frequency f = 40 Hz and amplitude A = 0.25 m. The rope is held at constant tension by hanging a mass on the other end.
If the directions of the electron and current are as shown in the figure, what is the magnitude (in N) and direction of the force experienced by the electron?
dolphins communicate using sound waves underwater. suppose a dolphin emits a sound wave with frequency 660 hz while
Find the force exerted on the plate by the pin at A.
A step-up transformer has 10 turns on the primary coil and 500 turns on the secondary coil. what input current and voltage are needed
Friction provides the force needed for a car to travel arounda flat, circular racetrack. What is the maximum speed at which acar can safely travel if the radius of the track is 80.0m and the coefficient of friction is0.40
An eagle with 1.8m wingspan flaps its wings 21 times per minute, each stroke extending from 42%u2218above the horizontal to 42%u2218 below. What's the average tangential velocity of the wingtip
1. Explain how you would evoke a startle response (reflex) using classical conditioning in an unsuspecting friend using an abnormal signal (produces the reflex).Describeyour friend's reflex response and a signal that will produce that reflex respo..
How large does the radius R of the dish have to be to attain electric field vector amplitude of 0.1mV/m at the receiver.
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