Which of the following is NOT a benefit of dancing?
2 answers:
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Answer:
(a) Frequency will be 0.168 Hz
(b) Frequency will be 0.0789 Hz
Explanation:
(a) We have given velocity of the ocean waves in east direction v = 3.2 m /sec
Distance between the crest
We know that
So
(b)Velocity of the ocean waves in westward direction v = 1.5 m /sec
Distance between the crest
We know that
So
Answer:
A) 2.89 × 105 N/C, radially inward
Explanation:
The magnitude of the electric field generated by a charged sphere is given by the following formula:
( 1 )
k: Coulomb's constant = 8.98*10^9 Nm^2/C^2
Q: charge of the sphere = -6.50*10^-6 C
r: distance from the center of the sphere to the point in which E is calculated
r = 0.150m + 0.300m = 0.450 m
You replace the values of Q and r in the equation (1):
The electric field points radially inward because the charge is negative.
hence, the answer is:
A) 2.89 × 105 N/C, radially inward