Two point charges are fixed on the y axis: a negative point charge q1 = -25 μc at y1 = +0.18 m and a positive point charge q2 at y2 = +0.34 m. a third point charge q = +8.4 μc is fixed at the origin. the net electrostatic force exerted on the charge q by the other two charges has a magnitude of 25 n and points in the +y direction. determine the magnitude of q2.

1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?

What organization and environment is described above?

Identify some abiotic characteristics of the tundra biome.