Homework Prove that 1. |P,P,|=-ih 2. y ||2,✰ |= 0 -iħ 3. [P.,P,]=0

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a .ull Asiacel| 10 N 141 N O A box with a volume (V=0.05 m³) lies at the bottom of a lake whose water has a density of (1*10³ kg/m³). How much force is required to lift the box, .if the mass of the box is (1000 kg) 9319.5 N O 9313.9 N O 9391.5 N O 9315.9 N O A future rectangular ship filled with oil. If the dimensions of the ship are (250 m) long, (80 m) wide, and (80 m) high. Determine how far the bottom of the ship is below the sea level? (Consider the total mass of the ship with the oil is (10.2*108 kg), and the .sea density is (1024 kg/m³))

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45. | You find that if you hang a 1.25 kg weight from a vertical spring, it stretches 3.75 cm. (a) What is the force constant of this spring in N/m? (b) How much mass should you hang from the spring so it will stretch by 8.13 cm from its original, unstretched length?

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Please help with the following, make sure your asner is correct with proper signs 100%, pls and thank you

Complete the equation, using appropiate notations and fromulas: 410Be=?+510B

Temperature differences on the Rankine scale are identical to differences on the Fahrenheit scale, but absolute zero is given as 0°R. (a) Find a relationship converting the temperatures TF of the Fahrenheit scale to the corresponding temperatures TR of the Rankine scale. TR = (b) Find a second relationship converting temperatures TR of the Rankine scale to the temperatures TK of the Kelvin scale. TK =

9. r. S. H₂CRO4 A d= & OH NO₂ H₂ Pd/C NO₂ 6 = iq= HNO3 H₂, Pd/C H₂SO4