A string of length LLL vibrates to form a standing wave with five antinodes as shown below. What is the wavelength of the standing wave?
Choose 1
Choose 1

(Choice A)
A
\dfrac{4}{5}L
5
4

Lstart fraction, 4, divided by, 5, end fraction, L

(Choice B)
B
\dfrac{L}{5}
5
L

start fraction, L, divided by, 5, end fraction

(Choice C)
C
LLL

(Choice D)
D
\dfrac{2}{5}L
5
2

L

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?