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An automobile of mass 1520 kilogram traveling at 24 m/s is at the foot of a hill that rises 130 meter in 2.6 kilometer. At the top of the hill, the speed of the automobile is 10 m/s. Obtain the average power delivered by the automobile engine, ignore any frictional losses.
Watts
A Beryllium nucleus consists of 4 protons and 5 neutrons. What is the potential energy of the nucleus due to electrical forces
What is the influence of friction on banked highway turns? To address this question, first consider a car that encounters a circular highway curve of radius 256m banked toward the turn center.
A plane is headed east with an air speed of 205.0 m/s. The wind blows southeast at 32.0 m/s. Determine the velocity of the plane relative to the earth.
A proton accelerates from rest in a uniform electric field of 644 N/C. At some later time, its speed is 1.14 106 m/s. Find the magnitude of the acceleration of the proton
Suppose you hook up some AC circuit with a combination of inductors, capacitors, and resistors, and you are measuring the voltage across one of these elements. You set up the oscilloscope so that it is set to .5 VOLTS/DIV, and 5 ms/DIV and observe th..
A train has a rest length of 100 m. Traveling at a very high velocity, it goes through a tunnel of length 60 m. What is the velocity of the train expressed in units of c
at a certain facility one net count corresponds to an activity of 12.9 bq in a sample and the expected number 816 of
if the magnetic field caused by a magnet is b15 webersmeters squared and the field lines normally go through a gaussian
a 1 kg projectile is shot straight up from the earths surface with a velocity of 100 ms and reaches a height of 300 m
A 407- turn solenoid with a length of 29cm and radius of 1.4 cmcarries a current of 2.3 A. A second coil of 4 turns is wrappedtightly about this solenoid so that it can be considered to havethe same radius as the solenoid. Find the change in the magn..
An observer, whose eyes are 1.99 m above the ground, is standing 35.0 m away from a tree. The ground is level, and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 23.0° above the horizontal. Ho..
If the force on the ball increases linearly for 4.00 ms, holds constant for 20.0 ms, and then decreases linearly to zero in another 4.00 ms, what is the maximum force on the ball
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