Electromagnetic Force

Ex.11: The two point charge q1 = 2.10-2 (mC) and q2 = - 2.10-2 (mC) placed at two points A and B separated by a period a = 30 (cm) in air. Electromagnetic force acting on the charge Q0 = 2.10-9 (C) located at M equidistant points A and B have an approximately equal to a large degree how much?

Ex.12: The two charges q1 = 4 mC, q2 = 9 mC located at two points A and B in vacuum AB = 1m. Locate the point M to M located at a charge Q0, the electromagnetic force acting on Q0 sum equal to 0, indicating that the location of M independent of the value of Q0.

Ex. 13: Given two point charges q1 and q2 of 16 mC and –64 mC, respectively located at two points A and B in vacuum AB = 100 cm apart. Determine the electric force acting on the general point charge Q0 = 4 mC is located at:

a. Point M: AM = 60 cm, BM = 40 cm.

b. Point N: AV = 60cm, 80cm BN =

Ex.14: At two points A and B separated by 5 cm in vacuum with two charges q1 = 16x10^-8C  and q2 =  - 9x10^-8 C. Calculate the electric field intensity vector sum and draw the electric field intensity at point C is located approximately 4 cm and A a B an approximately 3 cm?

Ex. 15: At 2 points A, B 10 cm apart in the air with charge set q₁ =  4x10^-6C, q₂ =  9x10^-6C.

a) Determine the electric field strength due to 2 causes the charge at point C that AC = 10 cm, BC = 20 cm.

b) Locate the point M at which the electric field intensity by the second sum this charge caused by 0.

Ex.16: An object with 2kg mass moving forward with speed 4 m / s and touching the second object is standing still. After the collision, the first object moves inversely to the speed of 1m / s is second object is moving with speed 2 m / s. Second character is asked by how much weight?

Ex.17: A ball is drop from a point 12 meters above the ground. When ground, the ball loses one third of total energy. Ignoring air resistance. After the first ground, the ball, how much?

Ex.18: A locomotive weighing 100 tons were moving straight horizontal velocity v1 = 1.5 m / s to transplant into a train of 10 carriages, each 20 tons are standing on the tracks . Suppose that after the ship collided with the carriages attached, ignore any friction. Q after the collision, the velocity of the train is worth how much?

Ex.19: From the ground up an object is thrown vertically with initial velocity v0 = 10m / s. Ignoring air resistance, taking g = 10m/s2, At the height of any potential energy in kinetic energy? With 4 times the kinetic energy?

Ex.20:

1. Isothermal compression of gas a state is determined from the volume V1 = 8L, P1 = 2x10⁵ Pa pressure the state has a volume V2 = 5L. As the gas pressure at the time.

2. The graph shows the process of transition of a gas determined as shown.

a) the graph corresponds to offer any process?

b) The pressure p1?

3. In the cylinder of an internal combustion engine, the gas mixture at a pressure of 1.5 atm, temperature 37⁰, has a volume of 40 liters. Compressed gas mixture to 5 dm³ volume, pressure 15 atm. As air temperature after compression.