The diagram below shows eight different positions of the moon around Earth. Which two positions show the location of the moon in its crescent phases as seen from Earth?

2 and 4
2 and 8
4 and 6
6 and 8

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

With which of the following is the weak nuclear force associated? a.lightingb.nuclear decayc.ocean tidesd.stactic cling