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A uniform electric field of magnitude 200 V/m is directed in the negative x direction. A +10.7 μC charge moves from the origin to the point (x, y) = (20.4 cm, 51.5 cm). What was the change in the potential energy of this charge?
An iron tower in is 39 meters tall on a cold day, What is the HEIGHT of the tower on a hot day when the temp is 31.5 degrees Celcius
a spherical mirror is polished on both sides. when the concave side is used as a mirror the magnification is 3.7. what
A certain ac signal at 1000 Hz is applied across an inductor and a 100-ohm resistor. If the power factor of the circuit is 0.4, what is the impedance of the circuit
A 26.0 kg block atrest on a horizontal frictionless table is connected to the wallvia a spring with a spring constant k= 34.0 N/m. A 2.30E-2 kgbullet travelling with a speed of 5.000E+2 m/s embeds itself in the block. What is the amplitude of the ..
Earthquakes generate sound waves inside Earth. Unlike a gas, Earth can experience both transverse (S) and longitudinal (P) sound waves. how far away did the earthquake occur
Two stationary positive point charges, charge 1 of magnitude3.35 nC and charge 2 of magnitude 1.75 nC, are separatedby a distance of 39.0 cm. An electron is released from rest atthe point midway between the two charges, and it moves along the line..
A small block is attached to an ideal pring and is moving in SHM on a horizontal, frictionless surface, What is the frequency of the motion
In a tungsten atom, what is the kinetic energy of an L-shell electron ejected by a photon that was created during the M-K shell transition of the atom?
You and a friend are sitting out on the balcony of your apartment which is 24 m above the ground. Where does your friend's ball land
A 50.0g thermometer is used to measure the temperature of 180g of water. The specific heat of the thermometer, which is mostly glass, is 750J/(kg?K) , find the actual water temperature before it was measured
A rocket of total mass 3180 kg is traveling in outer spacewith a velocity of 115 m/s toward the Sun. how much mass must be expelled
a Two vehicles travelling on a road in the same direction collide. Vehicle 1 has a mass 1200 kg and is travelling at 30m/s. Determine the change in momentum of each vehicle
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