A factor of 50dB = a factor of 10^(50/10) = 10^5 = a factor of <em>100,000</em> .
1.) B.
2.) A.
3.) A.
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Answer:
a) 1.248 rad/s
b) 13.728 m/s
c) 0.52 rad/s^2
d) 17.132m/s^2
Explanation:
You have that the angles described by a astronaut is given by:
(a) To find the angular velocity of the astronaut you use the derivative og the angle respect to time:
Then, you evaluate for t=2.40 s:
(b) The linear velocity is calculated by using the following formula:
r: radius if the trajectory of the astronaut = 11.0m
You replace r and w and obtain:
(c) The tangential acceleration is:
(d) The radial acceleration is:
Answer:
F = 2.49 x 10⁻⁹ N
Explanation:
The electrostatic force between two charged bodies is given by Colomb's Law:
where,
F = Electrostatic Force = ?
k = colomb's constant = 9 x 10⁹ N.m²/C²
q₁ = charge on proton = 1.6 x 10⁻¹⁹ C
q₂ = second charge = 1.4 C
r = distace between charges = 0.9 m
Therefore,
<u>F = 2.49 x 10⁻⁹ N</u>