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1. 2 charges x nC and y nC are placed at the corners A and B respectively of an equilateral triangle ABC. Determine the charge at C for which the potential at the mid point of BC will be zero. Each side of triangle is 2cm.
A rifle with a weight of 20 Newton fires a 3.5 gram bullet with a speed of 260 meter per second. Evaluate what the recoil speed of the rifle
Light with a wavelength of 370 nanometer shines on a metal surface, which emits electrons. The stopping potential is measured to be 1.06 Volt, Determine the work function
Suppose a person who has a near point of 45.5 cm is trying to view a book at a distance of 25.0 cm. What is the focal length of a lens that would take the book and make an image on the same side of the lens as the book a distance of 45.5 cm from t..
A satellite moves in a circular orbit around Earth at a speed of 4439 m/s. Determine the period of the satellites orbit
while the airport sends out a rescue crew, how far will the crew have to fly to reach the aircraft if they fly in a straight line from Galisto?
Crossfire was a popular board game in which players attempted to propel a "puck" forward towards their opponet's side by shooting metal balls at it. What is the maximum speed a player can impart to the puck with a single shot
The earth spins on its axis once a day and orbits the sun once a year (365.24 days). Calculate its angular velocity as it revolves around the sun
A high-speed lifting mechanism supports a 790-kg object with a steel cable that is 32.0 m long and 4.00 cm2 in cross-sectional area. Determine the elongation of the cable
the resistance of a very fine tungsten wire with a 10 micro m x 10micro m square cross section is 2978 ohm how long is
a block of ice at 0 degrees c has a small depression in the top. we place a steel nut of mass 45 grams in this
If I put 40g of ice at 0°C into a perfectly insulated cup containing 250g of coffee at 90°C, what will the final temperature be when the system comes into thermal equilibrium? Suppose that the specific heat of coffee is the same as that of water.
upstream of a normal shock in air the pressure is 14.7 psia and the temperature is 528r. downstream of the shock the
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