How to calculate x c

ring. a) Calculate the work done to compress the spring. (2 marks) b) What happens to the work done on the spring ? (1 mark) c) If the spring is released, what happens to the energy of the spring? (1 mark) d) Calculate the total mechanical energy of the ball at the instant it leaves the spring. (2 marks) e) What will be the speed of the ball at the instant it leaves the spring? (2 marks) f) If the ball is fired up into the air by the spring, how much gravitational potential energy will it gain? (1 mark) g) What will be the maximum height of the ball? (2 marks

and I'm trying to calculate where it could have landed, i do not need help with a homework study. Could you please help me?

units. Chemical Equation: Write a generic chemical equation for the dehydration of cobalt (II) chloride ∙ x hydrate (include the state symbols of the reactant and two products). [T2] Mass of Reactants and Products: a) Calculate the initial mass of the hydrated cobalt (II) chloride. [T1] b) Calculate the final mass of the anhydrous cobalt (II) chloride remaining in the cruiio8icible. [T1] c) Calculate the mass of water given off by the sample of hydrated cobalt (II) chloride. [T1] Moles of Products: a) Calculate the moles of anhydrous cobalt (II) chloride remaining in the crucible. [T1] b) Calculate the moles of water released from the hydrate. {T1] 4. Mole Ratio a) Create an experimental mole ratio between the b) and a). [T1] 5. Formula of Hydrate: State the chemical formula you have determined for this hydrate. Round the formula to the closest whole number value for x. [T1] Discussion/Conclusion Questions: [T6] Based on the chemical formula of the hydrate, calculate the percentage composition (percent by mass) of the hydrated cobalt (II) chloride. Remember to determine the percentage of each element (Co, Cl, H, and O). [T2] A possible source of systematic error in this experiment is insufficient heating. Suppose that the hydrate was not completely converted to the anhydrous form. Describe how this would affect: the calculated percent by mass of water and the experimental molecular formula (i.e. would x be higher, lower or the same). Suppose a student spilled some of the hydrated cobalt (II) chloride. Describe how this would affect the calculated percent by mass of water (would it be higher, lower or the same) and the experimental chemical formula of the hydrate. [T2]

s Bedroom. The pail has an exterior diameter of 350 mm and interior 300 mm on the top while 200 mm exterior diameter x 150 mm interior diameter on its bottom. The pail has a height of 500 mm. Calculate the capacity of concrete the pail can hold and how many pails of concrete are needed to fill the concrete slab of the master’s bedroom? 2.) An Infinity pool that has a dimension of 10518 mm x 17880 mm x 1524 mm will be excavated; the height of the pool is ¼ above ground. If one small truck can hold 100 cu.ft of soil, how many truckloads of soil will be excavated?

, mean and standard deviation. (keep getting incorrect answer)

he mining ship has a mass of 10,000 kg. The first rocket stage provides a thrust of 80 kN and is used over a distance of 100,000 km. The second rocket stage provides a thrust of 40 kN and is used over a distance of 200,000 km. The third rocket stage provides a thrust of 30 kN and is used over a distance of 400,000 km. 1) Calculate the final velocity of the rocket using two methods: a. Using the work-energy theorem. b. Using kinematics and Newton’s laws of motion. Hint: You might need to use the quadratic formula to solve for t: 2) Calculate the total amount of time it takes for the mining ship to reach the other asteroid. 3) If the ship has a reverse thruster that provides 200 kN of thrust, how many km before reaching the destination should the mining ship engage the reverse thrusters?

sin x like sin 10 or sin 25 or sin pi. How do I calculate these?