Consider a grey squirrel falling out of a tree to the ground. (a) If we ignore air resistance in this case (only for the sake of this problem), determine a squirrel's velocity just before hitting the ground, assuming it fell from a height of 3.0 m. (b) If the squirrel stops in a distance of 2.0 cm through bending its limbs, compare its deceleration with that of the airman in the previous problem.
Consider a grey squirrel falling out of a tree to the ground. (a) If we ignore air resistance in this case (only for the sake of this problem), determine a squirrel's velocity just before hitting the ground, assuming it fell from a height of 3.0 m. (b) If the squirrel stops in a distance of 2.0 cm through bending its limbs, compare its deceleration with that of the airman in the previous problem.
Consider a grey squirrel falling out of a tree to the ground. (a) If we ignore air resistance in this case (only for the sake of this problem), determine a squirrel's velocity just before hitting the ground, assuming it fell from a height of 3.0 m. (b) If the squirrel stops in a distance of 2.0 cm through bending its limbs, compare its deceleration with that of the airman in the previous problem.
Determine the direction of the vector V, B, or ♬ that is missing from the pair of vectors shown in each scenario. Here, u is the
velocity vector of a moving positive charge, B is a constant and uniform magnetic field, and F is the resulting force on the
moving charge.
1.
2.
3.
B
OB
F
4.
↑F
F
5.
怔
↑
↑F
Answer Bank
6.
↑
TE
F
Two point charges (+9.80 nC and -9.80 nC) are located 8.00 cm apart. Let U=0 when all of the charges are separated by infinite
distances. What is the potential energy if a third point charge q=-4.20 nC is placed at point b?
8.00 cm 8.00 cm
4.00 +4.00 +4.00-
cm
cm
cm
HJ
!
Required information
Two chloride ions and two sodium ions are in water, the "effective charge" on the chloride ions (CI¯) is −2.00 × 10-21 C
and that of the sodium ions (Na+) is +2.00 x 10-21 C. (The effective charge is a way to account for the partial shielding due
to nearby water molecules.) Assume that all four ions are coplanar.
CT
Na+
Na+
30.0°
45.0%
с
сг
L.
where a = 0.300 nm, b = 0.710 nm, and c = 0.620 nm.
What is the direction of electric force on the chloride ion in the lower right-hand corner in the diagram? Enter the angle in degrees
where positive indicates above the negative x-axis and negative indicates below the positive x-axis.
Genetic Analysis: An Integrated Approach (3rd Edition)
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