If we place living cells in a nonpolar solvent like methane or ethane,
A) their membranes will thicken, preventing molecular transport across the membrane
B) they will rapidly explode due to pressure caused by the solvent building up inside the cell
C) their membranes will most likely dissolve as cell membranes are also nonpolar
D) they will function in much the same way as they do in water
C
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An airplane that is flying level needs to accelerate from a speed of 2.00 × 102 m/s to a speed of while it flies a distance of 1.20 km. What must be the acceleration of the plane?
A) 4.44 m/s2 B) 2.45 m/s2 C) 7.33 m/s2 D) 5.78 m/s2 E) 1.34 m/s2
A spaceship, traveling at 0.100c away from a stationary enemy station, shoots a projectile towards the station, with a speed of 0.560c relative to the spaceship. What is the speed of the projectile relative to the station?
A) 0.460c B) 0.487c C) 0.492c D) 0.492c E) 0.660c
The work done by a variable force in moving an object between two points is equal to the area under the force versus displacement curve between those two points
Indicate whether the statement is true or false
The SI units of acceleration are
a. mi/h b. km/h c. m/s d. m/s2 e. none of the above