(a) To show that the tank holds 96 moles of air. 96 moles Given data: Volume of air = 2300 L=2300 × 10 − 3 m 3 Temperature of air = 20 0 C = 293 K . Pressure of air = 1 atm = 1.03125 × 10 5 Pa Formula used: Gas Law : P V = n R T Calculation: Use gas law to find no of moles of air. P V = n R T 1.03125 × 10 5 Pa × 2300 × 10 − 3 m 3 = n × 8.31 Jmole − 1 K − 1 × 298 K n = 96 (b) To calculate the pressure within the tank. 191.67 atm Given data: Volume of air = 12 L=12 × 10 − 3 m 3 Temperature of air = 20 0 C = 293 K . Moles of air = 96 Formula used: Boyle’s Law: P 1 V 1 = P 2 V 2 Calculation: Use Boyle’s Law to find pressure in the tank. P 1 V 1 = P 2 V 2 1.03125 × 10 5 Pa × 2300 × 10 − 3 m 3 = P 2 × 12 × 10 − 3 m 3 P 2 = 191.67 × 1.03125 × 10 5 Pa = 191.67 atm (c) To calculate the pressure of air in the tank using Vander Waal’s equation. 183.66 atm Given data: Volume of air = 2300 L=2300 × 10 − 3 m 3 Temperature of air = 20 0 C = 293 K . Pressure of air = 1 atm = 1.03125 × 10 5 Pa No of moles = 96 Formula used: Van Der Waal’s Equation: P + n 2 a V 2 V − n b = n R T Calculation: Use gas equation above to find pressure of air in tank. P + 96 2 × 0.1373 (12 × 10 − 3 m 3 ) 2 12 × 10 − 3 m 3 − 96 × 3.72 × 10 − 5 = 96 × 8.31 × 293 P + 8787200 × .00843 = 233743.68 P + 8787200 = 27727601 P = 18940401 Pa P = 18940401Pa 103125 Pa/atm = 183.66 atm (d) To calculate the difference in pressure in percentage. 3 % Given data: Pressure of air considering it as ideal gas = 191.67 atm Pressure of air considering it as ideal gas = 183.66 atm Formula used: % error = difference in error initial value × 100 Calculation: % error = 8.01 191.67 × 100 = 3 % ( approx)

Steel train rails are laid in 13.0-m-long segments placed end to end. The rails are laid on a winter day when their temperature is -6.0° C. Part A How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 32.0°C? Express your answer with the appropriate units. ☐ о μΑ ? D = Value Units Submit Previous Answers Request Answer × Incorrect; Try Again; 3 attempts remaining Al Study Tools Looking for some guidance? Let's work through a few related practice questions before you go back to the real thing. This won't impact your score, so stop at anytime and ask for clarification whenever you need it. Ready to give it a try? Start Part B If the rails are originally laid in contact, what is the stress in them on a summer day when their temperature is 32.0°C? Express your answer in pascals. Enter positive value if the stress is tensile and negative value if the stress is compressive. F A Ο ΑΣΦ ? Ра

help me with this and the step I am so confused. It should look something like the figure i shown

Part A In an effort to stay awake for an all-night study session, a student makes a cup of coffee by first placing a 200 W electric immersion heater in 0.250 kg of water. How much heat must be added to the water to raise its temperature from 20.5° C to 95.0°C? Express your answer in joules. ΕΠΙ ΑΣΦ Q Submit Request Answer Part B ? J How much time is required? Assume that all of the heater's power goes into heating the water. Express your answer in seconds. VG ΑΣΦ ? t = S

help i dont understand this it should look like something like this picture. help me with the steps

Draw the velocity vectors starting at the black dots and the acceleration vectors including those equal to zero.

You toss a ball straight up by giving it an initial upward velocity of 18 m/s. What is the velocity of the ball 0.50 s after you released it? Define the positive y direction to be upward, the direction that you toss the ball.

10:44 AM Fri Jan 31 O Better endurance Limb end points travel less D Question 2 Take Quiz 1 pt: Two springs are arranged in series, and the whole arrangement is pulled a vertical distance of 2 cm. If the force in Spring A is 10 N, what is the force in Spring B as a result of the displacement? 05N 5 N 0.2 N 10 N O2N Question 3 1 pts

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Plz no chatgpt pls will upvote