Please help, I need it now! (data, resolution, response)
1.Calculate the force we need to make to lift a weight of 350N if the force arm measures 30m and the resistance arm measures 7m
2. Calculate the weight I can lift with a force of 3400N, if the d2 is 2.5m and the d1 is 11.2m.
3. Calculate the length of the force arm if I have to lift a weight of 350N with a force of 23N and the resistance arm measures 2.3m.
4. Calculate how much the resistance arm should measure, if we make a force of 2340N to lift a weight of 240N if the force arm measures 12.4dm.
5. Calculate the mass I can lift, if I make a 340N force with a lever 23.4cm of force and 12.4cm of resistance.

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic