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Point charges of +2.00nC and -5.00nC are arranged on two of the vertices of an equilateral triangle. Find the magnitude and sign of the third charge which must be placed at the 3rd vertex of the triangle so that the potential at a point on the side midway between the +2.00nC and -5.00nC is equal to zero. You do not need to know the size of the triangle.
Two railroad cars, each of mass 7850kg and traveling 85km/h in opposite directions, collide head-on and come to rest. How much thermal energy is produced in this collision
Consider a deformed nucleus (shape of an ellipsoid, long axis 10% longer than short axis). If you compute the electric potential at the first Bohr radius, what accuracy can you expect if you treat the nucleus as a point charge? Make reasonable es..
A ball of mass (m) 0.5 kg is attached to the end of a string having length (L) 0.5 m. The maximum possible value of angular velocity of ball is
A 40-kg projectile leaves a 2000-kg launcher with a speed of400 m/s. What is the recoil speed of the launcher
Suppose optical radiation (? = 5.60 10-7 m) is used to determine the position of an electron to within the wavelength of the light. What will be the resulting uncertainty in the electron's velocity?
a circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with an angular speed of 50 rad
LC oscillators havebeen used in circuits connected to loudspeakers to create some ofthe sounds of electronic music. which is in the audible range of frequencies
Three deer, A, B, and C, are grazing in a field. Deer B is located 64.2 m from deer A at an angle of 51.3 ° north of west. What is the distance between deers
Practical steam engines utilize 475°C steam, which is later exhausted at 300°C. What is the overall efficiency of the two engines
In a RLC series circuit, the resistor is 250 ohms, inductor is 0.6 H, capacitor is 3.5 micro Farads. What is the maximum voltage drop across the capacitor
Imagine four resistors: R1=600 ohms, R2=600 ohms, R3=300 ohms, R4=300 ohms. R1, R2, and R3 are connected together in a parallel plane; then R4 is connected in series with them; and finally the combination of all four resistors is connected to a 50..
An oscillating LC circuit consisting of a 5.0 nF capacitor anda 2.3 mH coil has a maximum volatage of 2.0 V. What is the maximum charge on the capacitor
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