Asked by Greg

What causes the centripetal acceleration of an electron in a hydrogen atom?

electrical attraction

gravity

friction <--

tension


Question 2. Which of the following terms might a jet pilot use to describe a force that presses him against his seat during a high-speed turn?

radial force

centrifugal force <--

tangential force

perpendicular force


Question 3. A 35.0 kg boy is riding an amusement park roundabout with a radius of 10.0 m. The roundabout makes one turn every 2.00 s. What is the centripetal force that the boy experiences?

2.20 × 102 N

3.46 × 103 N <--

3.46 × 104 N

1.10 × 102 N
Answered by Damon
What causes the centripetal acceleration of an electron in a hydrogen atom?

electrical attraction <---------******

gravity

friction <--

tension


Question 2. Which of the following terms might a jet pilot use to describe a force that presses him against his seat during a high-speed turn?

radial force

centrifugal force <-- YES

tangential force

perpendicular force


Question 3. A 35.0 kg boy is riding an amusement park roundabout with a radius of 10.0 m. The roundabout makes one turn every 2.00 s. What is the centripetal force that the boy experiences?

F = m a = m r omega^2
omega = 2 pi f = 2 pi*(1/2) = 3.14
omega^2 = 9.87
so
F = 35 * 10 * 9.87 = 3.45*10^3 Newtona

2.20 × 102 N

3.46 × 103 N <-- YES

3.46 × 104 N

1.10 × 102 N

Answered by Gianna
Number 1 is electrical attraction. Number 2 and 3 are correct.
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