A cylinder with a piston contains a sample of a thin gas. The kind of gas and the sample size can be changed. The cylinder can be placed in different constant-temperature baths, and the piston can be held in different positions. Rank the following cases according to the pressure of the gas from the highest to the lowest, displaying any cases of equality, (a) A 0.002-mol sample of oxygen is held at .300 K in a 100-cm 3 container. (b) A 0.002-mol sample of oxygen is held at 600 K in a 200-cm 3 container, (c) A 0.002-mol sample of oxygen is held at 600 K in a 300-cm 3 container, (d) A 0.004-mol sample of helium is held at .300 K in a 200-cm 3 container, (e) A 0.004-mol sample of helium is held at 250 K in a 200-cm 3 container.
A cylinder with a piston contains a sample of a thin gas. The kind of gas and the sample size can be changed. The cylinder can be placed in different constant-temperature baths, and the piston can be held in different positions. Rank the following cases according to the pressure of the gas from the highest to the lowest, displaying any cases of equality, (a) A 0.002-mol sample of oxygen is held at .300 K in a 100-cm 3 container. (b) A 0.002-mol sample of oxygen is held at 600 K in a 200-cm 3 container, (c) A 0.002-mol sample of oxygen is held at 600 K in a 300-cm 3 container, (d) A 0.004-mol sample of helium is held at .300 K in a 200-cm 3 container, (e) A 0.004-mol sample of helium is held at 250 K in a 200-cm 3 container.
Solution Summary: The author explains the formula to calculate the pressure of the gas, which is P=nRTV.
A cylinder with a piston contains a sample of a thin gas. The kind of gas and the sample size can be changed. The cylinder can be placed in different constant-temperature baths, and the piston can be held in different positions. Rank the following cases according to the pressure of the gas from the highest to the lowest, displaying any cases of equality, (a) A 0.002-mol sample of oxygen is held at .300 K in a 100-cm3 container. (b) A 0.002-mol sample of oxygen is held at 600 K in a 200-cm3 container, (c) A 0.002-mol sample of oxygen is held at 600 K in a 300-cm3 container, (d) A 0.004-mol sample of helium is held at .300 K in a 200-cm3 container, (e) A 0.004-mol sample of helium is held at 250 K in a 200-cm3 container.
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
Part C
Find the height yi
from which the rock was launched.
Express your answer in meters to three significant figures.
Learning Goal:
To practice Problem-Solving Strategy 4.1 for projectile motion problems.
A rock thrown with speed 12.0 m/s and launch angle 30.0 ∘ (above the horizontal) travels a horizontal distance of d = 19.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s2 for the free-fall acceleration.
PROBLEM-SOLVING STRATEGY 4.1 Projectile motion problems
MODEL: Is it reasonable to ignore air resistance? If so, use the projectile motion model.
VISUALIZE: Establish a coordinate system with the x-axis horizontal and the y-axis vertical. Define symbols and identify what the problem is trying to find. For a launch at angle θ, the initial velocity components are vix=v0cosθ and viy=v0sinθ.
SOLVE: The acceleration is known: ax=0 and ay=−g. Thus, the problem becomes one of…
Phys 25
Chapter 19 Solutions
Physics for Scientists and Engineers, Technology Update (No access codes included)
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