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a bare helium nucleus has two positive charges and a mass of 664 10-27 kga calculate its kinetic energy in joules at
lightning as a crude model for lightning consider the ground to be one plate of a parallel-plate capacitor and a cloud
if your conducting an experiment by heating a styrofoam cup of water with an electric current of 28a a voltage of 11v
a ball is being thrown towards a wall with 250 ms in a 40 degree angle the distance to the wall is 220ma how high will
an obstacle has a velocity of 290 kmh and drops with an angle of 30 degrees it hits the ground at d700ma how long was
a quarterback makes a pass throwing the ball at 22 ms and an angle of 63deg above the horizontal use si units unless
while partying in paris you throw a glass of champagne off of the eiffel tower you watch as the glass shatters at the
a 22nf capacitor is in series with a 125 mohm resistor the capacitor is initially uncharged when the series combination
the average speed of a nitrogen molecule in air is about 670102 ms and its mass is about 46810-26 kga if it takes
if 300multiplied by10-3kg of gold is deposited on the negative electrode of an electrolytic cell in a period of273h
three 13cm long rods form an equilateral triangle two of the rods are charged to 19nc the third to - 19 ncwhat is the
a particle starts from rest at x 0 and moves for 157 s with an acceleration of 225 cms2 for the next 409 s the
a parallel-plate air capacitor has a capacitance of 400pf and a charge of magnitude 0150muc on each plate the plates
in redesigning a parallel-plate capacitor with circular plates you triple both the diameter of the plates and their
a large parallel plate capacitor has plate separation of 090 cm and plate area of 283 cm2 the capacitor is connected
two positive point charges each have a charge of q and are fixed on the y axis at y a and y -a use the following as
a rod of length l has a total charge q uniformly distributed along its length the rod lies along the y axis with its
a conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a
a cannon tilted upward at 20deg fires a cannonball with a speed of 105 ms what is the component of the cannonballs
a uniform 200 kg chain 200 m long supports a 550 kg chandelier in a large public buildinga find the tension in the
the speed of an alpha particle is determined to be 875times106 ms if all of its kinetic energy is acquired by passing
three equal positive point charges of magnitude q 500 c are located at three corners of a square of edge length d 75
a small droplet of oil with mass of 349times10-16 kg is held suspended in a region of uniform electric field directed
a positive charge of 1000 c is located in a uniform field of 100times105 nc a negative charge of -0400 c is brought
a relatively loud sound can be created because a standing wave occurs in the bottle explain why the pitch of the sound