B because the mantle is farther down in and a egg has more of the hard stuff inside
Answer
given,
SAT is 500 with a standard deviation of 100.
a sample of 400 students whose family income was between $70,000 and $80,000 had an average verbal SAT score of 511.
sample mean =
=
= 5
95% confidence level is achieved within +/- 1.960 standard deviations.
1.960 standard deviations x 5 is equal to +/- 9.8
confidence interval = 511 - 9.8 --- 511 + 9.8
= 501.2-----520.8
30.1 N
Explanation:
Given:
Let's write the components of the net forces at the intersections. Note that the system is equilibrium so all the net forces are zero.
<u>Forces</u><u> </u><u>involving</u><u> </u><u>W1</u><u>:</u>
<u>Forces</u><u> </u><u>involving</u><u> </u><u>W2</u><u>:</u>
Substitute (2) into (3) and we get
Solving for ,
Longitudinal wave is a wave in which the motion of the medium's particles is parallel to the direction of the energy transport.