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The Nobel laureate Richard Feynman once said that if two persons stood at arm's length from each other and each person had 1% more electrons than protons, the force of repulsion between them would be enough to lift a "weight" equal to that of the entire Earth. Carry out an order-of-magnitude calculation to substantiate this assertion.
What must your average speed over the next 10 miles be to have your average speed for the total 20 miles be 13m/h? c)Given this average speed for the first 10 miles, can you possibly attain an average speed of 14for the total 20-mile ride?
A cardboard milk container has two holes, one above the other,punched in its side. find the level of the milk at that instant
as a new electrical technician you are designing a large solenoid to produce a uniform 0.190 t magnetic field near its
question1a potters wheel having a radius 0.53 m and a moment of inertia 14 kgbullm2 is rotating freely at 53 revmin.
Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. What is the kinetic energy of the flywheel after charging
A 509-?F capacitor is discharged through a resistor, whereby its potential difference decreases from its initial value of 97.9 V to 22.7 V in 4.99 s. Find the resistance of the resistor in kilohms
While a roofer is working on a roof that slants at 39 degree above the horizontal, he accidentally nudges his 89 Newton toolbox, causing it to start sliding downward, starting from rest. determine how fast will the toolbox be moving
In a conversion from military to peacetime use, a missile with a maximum horizontal range of 160 km is being adapted for studying the upper atmosphere
two speakers one directly behind the other are each generating a 235-hz sound wave. what is the smallest separation
A particle falls to Earth starting from rest at a great height(many times Earth's radius). Neglect air resistance and show thatthe particle requires approximately 9/11 of the total time of fallto traverse the first half of the distance. [Note: You wi..
The nuclear radii of aluminum and gold are approxi- mately r = 3.6 fm and 7.0 fm, respectively. The radii of protons and alpha particles are 1.3 fm and 2.6 fm, respectively. What energy a particles would be needed in head-on collisions for the nucl..
Having covered a distance 'd', whose mower is moving faster: Jack's or Jill's? Justify by finding the expressions for final speeds of Jack and Jill's mowers - Justify by finding the expressions for work done by both Jack and Jill.
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